/**
 * ImageToTextOnline - Main Stylesheet
 * 
 * This stylesheet contains all custom styles for the ImageToTextOnline application.
 * Uses BEM + OOCSS methodology with CSS custom properties for theming.
 * 
 * @version 1.0.0
 * @author ImageToTextOnline Development Team
 */

/* ==========================================================================
   CSS CUSTOM PROPERTIES (Global Variables)
   ========================================================================== */

:root {
    /* Primary Colors */
    --color-primary: #0097b2;
    --color-primary-dark: #007a91;
    --color-primary-light: #33b5cc;
    --color-primary-alpha: rgba(0, 151, 178, 0.1);

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    /* Typography */
    --font-family-primary: 'Poppins', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ==========================================================================
   BASE STYLES
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* ==========================================================================
   LAYOUT COMPONENTS
   ========================================================================== */

/**
 * Container
 * Wrapper for page content with responsive padding.
 */
.container-custom {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/**
 * Section
 * Standard section wrapper with vertical padding.
 */
.section {
    padding: var(--spacing-3xl) 0;
}

.section--gray {
    background-color: var(--color-gray-50);
}

.section__title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section__subtitle {
    text-align: center;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

/* ==========================================================================
   HEADER COMPONENT
   ========================================================================== */

.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    padding: var(--spacing-md) 0;
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__logo-icon {
    width: 32px;
    height: 32px;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header__link {
    color: var(--color-gray-700);
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
}

.header__link:hover {
    color: var(--color-primary);
}

/* Hamburger Toggle Button (hidden on desktop) */
.header__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: var(--z-fixed);
}

.header__hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

/* Hamburger → X animation */
.header__hamburger--active .header__hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__hamburger--active .header__hamburger-line:nth-child(2) {
    opacity: 0;
}

.header__hamburger--active .header__hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Dropdown Menu (floats on top of page content) */
.header .container {
    position: relative;
}

.header__mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.3s ease;
    opacity: 0;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-top: 1px solid var(--color-gray-200);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    z-index: var(--z-dropdown);
}

.header__mobile-menu--open {
    max-height: 300px;
    padding: var(--spacing-lg) 0;
    opacity: 1;
}

.header__mobile-nav {
    text-align: center;
}

.header__mobile-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.header__mobile-link {
    font-family: 'Poppins', sans-serif;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-800);
    transition: color var(--transition-base), opacity var(--transition-base);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    display: inline-block;
}

.header__mobile-link:hover {
    color: var(--color-primary);
    opacity: 0.85;
}

/* Responsive: Hide desktop nav, show hamburger on mobile/tablet (<1200px) */
@media (max-width: 1199.98px) {
    .header__nav--desktop {
        display: none !important;
    }

    .header__hamburger {
        display: flex;
    }
}


/* ==========================================================================
   BUTTON COMPONENT
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.625rem 1.25rem;
    font-family: var(--font-family-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.btn:focus {
    outline: 2px solid var(--color-primary-alpha);
    outline-offset: 2px;
}

.btn--primary {
    color: var(--color-white);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
}

.btn--outline {
    color: var(--color-primary);
    background-color: transparent;
    border-color: var(--color-primary);
}

.btn--outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn--secondary {
    color: var(--color-gray-700);
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-200);
}

.btn--secondary:hover {
    background-color: var(--color-gray-200);
    color: var(--color-gray-800);
}

.btn--lg {
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
}

.btn--sm {
    padding: 0.375rem 0.75rem;
    font-size: var(--font-size-xs);
}

.btn--block {
    width: 100%;
}

.btn--google {
    background-color: var(--color-white);
    border-color: var(--color-gray-300);
    color: var(--color-gray-700);
}

.btn--google:hover {
    background-color: var(--color-gray-50);
    color: var(--color-gray-800);
}

/* ==========================================================================
   HERO COMPONENT
   ========================================================================== */

.hero {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero__title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

@media (min-width: 768px) {
    .hero {
        padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    }

    .hero__title {
        font-size: var(--font-size-5xl);
    }
}

/* ==========================================================================
   OCR SECTION COMPONENT
   ========================================================================== */

.ocr {
    padding: var(--spacing-2xl) 0 var(--spacing-3xl);
}

.ocr__container {
    max-width: 800px;
    margin: 0 auto;
}

/**
 * Drop Zone
 * Main file upload area with drag and drop support.
 */
.drop-zone {
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    background-color: var(--color-gray-50);
    transition: all var(--transition-base);
    cursor: pointer;
}

.drop-zone:hover,
.drop-zone--active {
    border-color: var(--color-primary);
    background-color: var(--color-primary-alpha);
}

.drop-zone__icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.drop-zone__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-800);
    margin-bottom: var(--spacing-sm);
}

.drop-zone__subtitle {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
}

.drop-zone__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.drop-zone__formats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.drop-zone__format-badge {
    background-color: var(--color-gray-200);
    color: var(--color-gray-700);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

/**
 * Results Section
 * Container for OCR processing results.
 */
.results {
    margin-top: var(--spacing-xl);
    display: none;
}

.results--visible {
    display: block;
}

.results__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.results__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0;
}

.results__actions {
    display: flex;
    gap: var(--spacing-sm);
}

.results__list {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.results__item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.results__item:last-child {
    border-bottom: none;
}

.results__item-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.results__item-content {
    flex: 1;
    min-width: 0;
}

.results__item-name {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.results__item-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.results__item-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-shrink: 0;
}

/* ==========================================================================
   ABOUT SECTION COMPONENTS
   ========================================================================== */

.about {
    padding: var(--spacing-3xl) 0;
}

/**
 * Feature Cards
 * Grid of feature highlights.
 */
.features {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .features {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-card__icon {
    width: 56px;
    height: 56px;
    background-color: var(--color-primary-alpha);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: var(--font-size-2xl);
}

.feature-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.feature-card__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/**
 * How It Works Section
 */
.how-it-works {
    background-color: var(--color-gray-50);
    padding: var(--spacing-3xl) 0;
}

.steps {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .steps {
        grid-template-columns: repeat(3, 1fr);
    }
}

.step {
    text-align: center;
    position: relative;
}

.step__number {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
}

.step__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.step__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/**
 * FAQ Section
 */
.faq {
    padding: var(--spacing-3xl) 0;
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.faq__question {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-white);
    border: none;
    text-align: left;
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-800);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background-color var(--transition-base);
}

.faq__question:hover {
    background-color: var(--color-gray-50);
}

.faq__icon {
    transition: transform var(--transition-base);
}

.faq__item--active .faq__icon {
    transform: rotate(180deg);
}

.faq__answer {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--color-gray-600);
    display: none;
}

.faq__item--active .faq__answer {
    display: block;
}

/* ==========================================================================
   FOOTER COMPONENT
   ========================================================================== */

.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer__container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.footer__brand {
    text-align: center;
}

@media (min-width: 768px) {
    .footer__brand {
        text-align: left;
    }
}

.footer__logo {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

.footer__social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .footer__social {
        justify-content: flex-end;
    }
}

.footer__social-link {
    width: 40px;
    height: 40px;
    background-color: var(--color-gray-800);
    color: var(--color-gray-400);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer__social-link:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.footer__bottom {
    border-top: 1px solid var(--color-gray-800);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer__copyright {
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ==========================================================================
   FORM COMPONENTS
   ========================================================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-regular);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.form-control::placeholder {
    color: var(--color-gray-400);
}

/* Validation States */
.form-control--error {
    border-color: var(--color-error);
}

.form-control--error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-control--success {
    border-color: var(--color-success);
}

.form-error {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form-hint {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-top: var(--spacing-xs);
}

/**
 * Password Input with Toggle
 */
.password-input {
    position: relative;
}

.password-input__toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-gray-500);
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-input__toggle:hover {
    color: var(--color-gray-700);
}

.password-input .form-control {
    padding-right: 3.5rem;
    /* More space for icons */
}

/* Validation icon positioning - to the left of toggle */
.password-input .validation-icon {
    position: absolute;
    right: 2.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
}

.validation-icon--success {
    color: var(--color-success);
}

.validation-icon--error {
    color: var(--color-error);
}

/**
 * Password Strength Meter
 */
.password-strength {
    margin-top: var(--spacing-sm);
}

.password-strength__bar {
    height: 4px;
    background-color: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-xs);
}

.password-strength__fill {
    height: 100%;
    width: 0;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.password-strength__fill--weak {
    width: 25%;
    background-color: var(--color-error);
}

.password-strength__fill--fair {
    width: 50%;
    background-color: var(--color-warning);
}

.password-strength__fill--good {
    width: 75%;
    background-color: var(--color-info);
}

.password-strength__fill--strong {
    width: 100%;
    background-color: var(--color-success);
}

.password-strength__text {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

/* ==========================================================================
   AUTH PAGE COMPONENTS
   ========================================================================== */

.auth {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-50);
    padding: var(--spacing-xl) var(--spacing-md);
}

.auth__container {
    width: 100%;
    max-width: 420px;
}

.auth__card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
}

.auth__header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth__logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: inline-block;
    margin-bottom: var(--spacing-xl);
    /* Increased spacing below logo */
}

.auth__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
}

.auth__subtitle {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.auth__divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-lg) 0;
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.auth__divider::before,
.auth__divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--color-gray-200);
}

.auth__divider::before {
    margin-right: var(--spacing-md);
}

.auth__divider::after {
    margin-left: var(--spacing-md);
}

.auth__footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.auth__link {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.auth__link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ==========================================================================
   DASHBOARD COMPONENTS
   ========================================================================== */

.dashboard {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/**
 * Dashboard Header
 */
.dashboard__header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dashboard__logo {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.dashboard__user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.dashboard__avatar {
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
}

/**
 * Dashboard Layout
 */
.dashboard__body {
    display: flex;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.dashboard__sidebar {
    width: 250px;
    background-color: var(--color-gray-50);
    border-right: 1px solid var(--color-gray-200);
    padding: var(--spacing-lg);
    display: none;
}

@media (min-width: 1200px) {
    .dashboard__sidebar {
        display: block;
    }
}

/**
 * Dashboard Hamburger Toggle (visible <992px)
 */
.dashboard__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: var(--z-fixed);
}

.dashboard__hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

/* Hamburger → X animation */
.dashboard__hamburger--active .dashboard__hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.dashboard__hamburger--active .dashboard__hamburger-line:nth-child(2) {
    opacity: 0;
}

.dashboard__hamburger--active .dashboard__hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/**
 * Dashboard Mobile Dropdown Menu
 */
.dashboard__mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.3s ease;
    opacity: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-top: 1px solid var(--color-gray-200);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    z-index: var(--z-dropdown);
}

.dashboard__mobile-menu--open {
    max-height: 400px;
    padding: var(--spacing-lg) 0;
    opacity: 1;
}

.dashboard__mobile-nav {
    text-align: center;
}

.dashboard__mobile-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.dashboard__mobile-link {
    font-family: 'Poppins', sans-serif;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-800);
    transition: color var(--transition-base), opacity var(--transition-base);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    display: inline-block;
}

.dashboard__mobile-link:hover {
    color: var(--color-primary);
    opacity: 0.85;
}

.dashboard__mobile-link--active {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    pointer-events: none;
    cursor: default;
}

/* Responsive: Hide desktop user section, show hamburger on mobile/tablet (<1200px) */
@media (max-width: 1199.98px) {
    .dashboard__hamburger {
        display: flex;
    }

    .dashboard__user {
        display: none !important;
    }
}

.dashboard__nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dashboard__nav-item {
    margin-bottom: var(--spacing-xs);
}

.dashboard__nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1rem;
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.dashboard__nav-link:hover {
    background-color: var(--color-gray-100);
    color: var(--color-gray-900);
}

.dashboard__nav-link--active {
    background-color: var(--color-primary-alpha);
    color: var(--color-primary);
    pointer-events: none;
    cursor: default;
}

.dashboard__content {
    flex: 1;
    min-width: 0;
    padding: var(--spacing-lg);
    background-color: var(--color-gray-50);
    overflow-x: auto;
    width: 100%;
    box-sizing: border-box;
}

/**
 * Dashboard Cards
 */
.dashboard__card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    box-sizing: border-box;
}

/* Hover lift ONLY on chart visualization boxes */
.charts-grid .dashboard__card {
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.charts-grid .dashboard__card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.dashboard__card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.dashboard__card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0;
}

/**
 * Stats Cards
 */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 1200px) {
    .stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.stat-card__icon {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary-alpha);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
}

.stat-card__value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.stat-card__label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: 0;
}

/**
 * Data Table
 */
.data-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.data-table th,
.data-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.data-table th {
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    background-color: var(--color-gray-50);
    font-size: var(--font-size-sm);
}

.data-table td {
    color: var(--color-gray-800);
    max-width: 0;
}

.data-table tbody tr:hover {
    background-color: var(--color-gray-50);
}

.data-table__actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* Desktop: expand rows to fill more space */
@media (min-width: 992px) {
    .data-table th,
    .data-table td {
        padding: 1.25rem 1.5rem;
    }
}

/**
 * History Table Column Widths (Date | File Name | Text Snippet | Translation | Type | Actions)
 */
.history-table-wrapper .data-table th:nth-child(1),
.history-table-wrapper .data-table td:nth-child(1) {
    width: 10%;
}

.history-table-wrapper .data-table th:nth-child(2),
.history-table-wrapper .data-table td:nth-child(2) {
    width: 16%;
}

.history-table-wrapper .data-table th:nth-child(3),
.history-table-wrapper .data-table td:nth-child(3) {
    width: 24%;
}

.history-table-wrapper .data-table th:nth-child(4),
.history-table-wrapper .data-table td:nth-child(4) {
    width: 22%;
    white-space: normal;
}

.history-table-wrapper .data-table th:nth-child(5),
.history-table-wrapper .data-table td:nth-child(5) {
    width: 10%;
    text-align: center;
}

.history-table-wrapper .data-table th:nth-child(6),
.history-table-wrapper .data-table td:nth-child(6) {
    width: 12%;
    white-space: nowrap;
}

/**
 * Admin Users Table Column Widths (User | Email | Role | Joined | Status | Actions)
 */
.admin-users-table-wrapper .data-table th:nth-child(1),
.admin-users-table-wrapper .data-table td:nth-child(1) {
    width: 18%;
}

.admin-users-table-wrapper .data-table th:nth-child(2),
.admin-users-table-wrapper .data-table td:nth-child(2) {
    width: 24%;
}

.admin-users-table-wrapper .data-table th:nth-child(3),
.admin-users-table-wrapper .data-table td:nth-child(3) {
    width: 12%;
}

.admin-users-table-wrapper .data-table th:nth-child(4),
.admin-users-table-wrapper .data-table td:nth-child(4) {
    width: 14%;
}

.admin-users-table-wrapper .data-table th:nth-child(5),
.admin-users-table-wrapper .data-table td:nth-child(5) {
    width: 12%;
}

.admin-users-table-wrapper .data-table th:nth-child(6),
.admin-users-table-wrapper .data-table td:nth-child(6) {
    width: 20%;
    white-space: normal;
}

/**
 * Chart Placeholder
 */
.chart-placeholder {
    height: 300px;
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-500);
}

/**
 * History Search Bar (matches Users Management search design)
 */
.history-search {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 400px;
}

.history-search input {
    flex: 1;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
}

/**
 * Users Management Header + Search
 */
.users-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: var(--spacing-lg);
}

.users-search {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 400px;
}

.users-search input {
    flex: 1;
}

@media (max-width: 575.98px) {
    .users-header {
        flex-direction: column;
        align-items: stretch;
    }

    .users-search {
        max-width: 100%;
    }

    .history-header {
        flex-direction: column;
        align-items: stretch;
    }

    .history-search {
        max-width: 100%;
    }
}

/**
 * History Cards (Mobile/Tablet card layout)
 */
.history-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.history-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.history-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.history-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.history-card__filename {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    color: var(--color-gray-900);
    word-break: break-word;
}

.history-card__date {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    white-space: nowrap;
    flex-shrink: 0;
}

.history-card__snippet {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.history-card__actions {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: flex-end;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-gray-100);
}

.history-card__actions .btn {
    padding: 0.4rem 0.65rem;
    font-size: 1rem;
}

/**
 * Responsive: Table ↔ Cards Toggle
 * Desktop (≥992px): show table, hide cards
 * Mobile/Tablet (<992px): hide table, show cards
 */
.history-table-wrapper {
    display: block;
}

.history-cards-wrapper {
    display: none;
}

@media (max-width: 991.98px) {
    .history-table-wrapper {
        display: none;
    }

    .history-cards-wrapper {
        display: block;
    }
}

/**
 * History empty state (cards mode)
 */
.history-empty {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-gray-500);
}

.history-empty i {
    font-size: 2.5rem;
    display: block;
    margin-bottom: var(--spacing-sm);
}

/**
 * Card Pagination
 */
.history-card-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.35rem;
    padding-top: var(--spacing-md);
}

.history-card-pagination .btn {
    min-width: 32px;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/**
 * User Cards (Mobile admin user management)
 */
.user-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.user-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.user-card__header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: var(--spacing-sm);
}

.user-card__info {
    flex: 1;
    min-width: 0;
}

.user-card__name {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-card__email {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-card__meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.user-card__actions {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: flex-end;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-gray-100);
}

.user-card__actions .btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

/**
 * Admin Users Table ↔ Cards Toggle
 */
.admin-users-table-wrapper {
    display: block;
}

.admin-users-cards-wrapper {
    display: none;
}

@media (max-width: 1199.98px) {
    .admin-users-table-wrapper {
        display: none;
    }

    .admin-users-cards-wrapper {
        display: block;
    }

    .view-switcher {
        text-align: center;
    }

    .view-switcher .btn {
        width: 100%;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }
}

/**
 * Chart responsive container
 */
#chartContainer {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

/* Text Alignment */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* Font Weight */
.font-light {
    font-weight: var(--font-weight-light);
}

.font-regular {
    font-weight: var(--font-weight-regular);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

/* Colors */
.text-primary {
    color: var(--color-primary);
}

.text-muted {
    color: var(--color-gray-500);
}

.text-success {
    color: var(--color-success);
}

.text-error {
    color: var(--color-error);
}

.text-warning {
    color: var(--color-warning);
}

/* Spacing */
.mt-0 {
    margin-top: 0;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

/* Display */
.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

/* Visibility */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   MOBILE RESPONSIVE STYLES
   ========================================================================== */

/**
 * Small screens (phones, max 767px)
 * Fixes header nav overflow, hero text sizing, auth card padding,
 * dashboard layout, data table horizontal scroll, and flex wrap issues.
 */
@media (max-width: 767.98px) {

    /* ----- Hero ----- */
    .hero {
        padding: var(--spacing-xl) 0;
    }


    .hero__title {
        font-size: var(--font-size-2xl);
        word-break: break-word;
    }

    .hero__subtitle {
        font-size: var(--font-size-base);
        padding: 0 var(--spacing-sm);
    }

    /* ----- OCR Section ----- */
    .ocr {
        padding: var(--spacing-lg) 0 var(--spacing-xl);
    }

    .drop-zone {
        padding: var(--spacing-lg);
    }

    .drop-zone__icon {
        font-size: 2rem;
    }

    .drop-zone__title {
        font-size: var(--font-size-base);
    }

    .drop-zone__subtitle {
        font-size: var(--font-size-xs);
    }

    /* ----- Results ----- */
    .results__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .results__actions {
        flex-wrap: wrap;
        width: 100%;
    }

    .results__actions .btn {
        flex: 1;
        min-width: 0;
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .results__item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .results__item-actions {
        width: 100%;
        justify-content: flex-end;
    }

    /* ----- About / Features ----- */
    .about {
        padding: var(--spacing-xl) 0;
    }

    .section__title {
        font-size: var(--font-size-xl);
    }

    .section__subtitle {
        font-size: var(--font-size-sm);
    }

    /* ----- How It Works ----- */
    .how-it-works {
        padding: var(--spacing-xl) 0;
    }

    /* ----- FAQ ----- */
    .faq {
        padding: var(--spacing-xl) 0;
    }

    .faq__question {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .faq__answer {
        padding: 0 var(--spacing-md) var(--spacing-sm);
        font-size: var(--font-size-sm);
    }

    /* ----- Auth Pages ----- */
    .auth {
        padding: var(--spacing-md);
    }

    .auth__card {
        padding: var(--spacing-lg);
    }

    .auth__title {
        font-size: var(--font-size-xl);
    }

    /* ----- Dashboard Header ----- */
    .dashboard__header {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .dashboard__user {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }

    .dashboard__user .btn {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    /* ----- Dashboard Content ----- */
    .dashboard__content {
        padding: var(--spacing-md);
    }

    .dashboard__card {
        padding: var(--spacing-md);
    }

    .dashboard__card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .dashboard__card-title {
        font-size: var(--font-size-base);
    }

    /* ----- Data Table (horizontal scroll) ----- */
    .dashboard__card .table-responsive,
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table {
        min-width: 600px;
    }

    .data-table th,
    .data-table td {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
        white-space: nowrap;
    }

    .data-table__actions {
        flex-wrap: nowrap;
    }

    /* ----- Chart ----- */
    .chart-placeholder {
        height: 200px;
    }

    /* ----- Footer ----- */
    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-md);
    }

    .footer__logo {
        font-size: var(--font-size-base);
    }

    /* ----- Buttons (general) ----- */
    .btn--lg {
        padding: 0.625rem 1.25rem;
        font-size: var(--font-size-sm);
    }

    /* ----- Container ----- */
    .container-custom {
        padding: 0 var(--spacing-sm);
    }
}

/**
 * Medium screens (tablets, 768px to 991px)
 * Adjust dashboard and content spacing for tablets.
 */
@media (min-width: 768px) and (max-width: 991.98px) {

    .dashboard__content {
        padding: var(--spacing-md);
    }

    .data-table th,
    .data-table td {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

/**
 * Prevent horizontal overflow globally.
 * Ensures no element causes a horizontal scrollbar on the page.
 */
html,
body {
    overflow-x: hidden;
}

/* ==========================================================================
   PAGINATION — UNIFIED THEME
   ========================================================================== */

/**
 * Industry-standard pagination with theme colors, hover animations,
 * and responsive sizing. Used by history table, admin users, and
 * any other paginated views across the app.
 */
.pagination {
    justify-content: center;
    gap: 0.25rem;
}

.pagination .page-link {
    color: var(--color-primary, #0097b2);
    border: 1.5px solid var(--color-gray-200);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 0.85rem;
    min-width: 38px;
    text-align: center;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.pagination .page-link:hover {
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-primary, #0097b2), var(--color-primary-light, #33b5cc));
    border-color: var(--color-primary, #0097b2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 151, 178, 0.3);
    text-decoration: none;
}

.pagination .page-link:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 151, 178, 0.25);
    outline: none;
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--color-primary, #0097b2), #00838f);
    border-color: var(--color-primary, #0097b2);
    color: var(--color-white);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 151, 178, 0.35);
    transform: translateY(-1px);
}

.pagination .page-item.disabled .page-link {
    color: var(--color-gray-400);
    background-color: var(--color-gray-50);
    border-color: var(--color-gray-200);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Responsive sizing */
@media (max-width: 576px) {
    .pagination .page-link {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
        min-width: 32px;
        border-radius: 6px;
    }
}

/**
 * Card pagination (used in mobile card views).
 * Ensures consistent centering and gap.
 */
.history-card-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.35rem;
    padding: 1rem 0 0.5rem;
}

/* ==========================================================================
   WELCOME / USERNAME HOVER TRANSITION
   ========================================================================== */

/**
 * Smooth color transition on the welcome/username text when hovering
 * the user-link (welcome/avatar area) on dashboard pages.
 */
.dashboard__user-link #welcomeUser {
    transition: color 0.25s ease;
}

.dashboard__user-link:hover #welcomeUser {
    color: #0097b2 !important;
    text-decoration: underline;
}

.dashboard__user-link:hover {
    opacity: 0.9;
}

/* ==========================================================================
   SMALL SCREEN (≤360px)
   ========================================================================== */
@media (max-width: 360px) {
    /* Global text scaling */
    body { font-size: 13px; }
    h1, .h1 { font-size: 1.35rem; }
    h2, .h2 { font-size: 1.15rem; }
    h3, .h3 { font-size: 1rem; }

    /* Buttons */
    .btn { padding: 0.35rem 0.65rem; font-size: 0.78rem; }
    .btn--sm { padding: 0.25rem 0.5rem; font-size: 0.72rem; }
    .btn i.bi { font-size: 0.8rem; }

    /* Feature cards */
    .feature-card { padding: 1rem; }
    .feature-card__icon { font-size: 1.5rem; width: 48px; height: 48px; }

    /* Data table action buttons */
    .data-table__actions .btn { padding: 0.25rem 0.45rem; }
    .data-table__actions .btn i.bi { font-size: 0.85rem; }

    /* Charts */
    .chart-container { min-height: 160px; }
    .chart-container canvas { max-height: 200px; }

    /* Upload zone */
    .upload-zone { padding: 1rem; }
    .upload-zone i.bi { font-size: 1.8rem; }

    /* Navbar */
    .navbar-brand { font-size: 0.9rem; }
    .navbar-brand img { height: 28px; }

    /* Modals */
    .modal-dialog { margin: 0.5rem; }
    .modal-title { font-size: 0.95rem; }

    /* Pagination */
    .pagination .page-link { padding: 0.25rem 0.5rem; font-size: 0.72rem; min-width: 26px; }
}

/* ==========================================================================
   ULTRA-SMALL SCREEN (Smartwatch, ≤280px)
   ========================================================================== */
@media (max-width: 280px) {
    /* Font scaling + minimum width (Apple Watch = ~162px) */
    body { font-size: 11px; min-width: 160px; }
    h1, .h1 { font-size: 1.1rem; }
    h2, .h2 { font-size: 0.95rem; }
    h3, .h3 { font-size: 0.85rem; }
    p, span, label, td, th { font-size: 0.7rem; }

    /* All icons */
    i.bi { font-size: 0.7rem; }

    /* Stat cards */
    .stats { grid-template-columns: 1fr !important; gap: 0.4rem; }
    .stat-cards-grid { grid-template-columns: 1fr !important; gap: 0.4rem; }
    .stat-card { padding: 0.5rem; }
    .stat-card__value { font-size: 1rem; }
    .stat-card__label { font-size: 0.6rem; }
    .stat-card__icon { width: 28px; height: 28px; font-size: 0.7rem; }
    .stat-card__icon i.bi { font-size: 0.65rem; }

    /* Charts */
    .charts-grid { grid-template-columns: 1fr !important; gap: 0.5rem; }
    .chart-container { min-height: 100px; }
    .chart-container canvas { max-height: 140px; }

    /* Dashboard cards */
    .dashboard__card { padding: 0.5rem; }
    .dashboard__card-title { font-size: 0.8rem; }

    /* History header + controls */
    .history-header { flex-direction: column; gap: 0.4rem; }
    .history-search { flex-direction: column; width: 100%; }
    .history-search .form-control { min-width: 0; width: 100%; font-size: 0.7rem; padding: 0.25rem 0.4rem; }
    .history-search .btn { padding: 0.2rem 0.4rem; font-size: 0.65rem; }
    .history-search .btn i.bi { font-size: 0.6rem; }

    /* History cards */
    .history-card { padding: 0.5rem; }
    .history-card__header { font-size: 0.7rem; }

    /* All buttons */
    .btn { padding: 0.25rem 0.5rem; font-size: 0.65rem; }
    .btn--sm { padding: 0.2rem 0.35rem; font-size: 0.6rem; }
    .btn i.bi { font-size: 0.6rem; }

    /* Data table action buttons */
    .data-table__actions { gap: 0.15rem !important; }
    .data-table__actions .btn { padding: 0.2rem 0.35rem !important; }
    .data-table__actions .btn i.bi { font-size: 0.55rem; }

    /* Feature cards */
    .feature-card { padding: 0.6rem; }
    .feature-card__icon { font-size: 1.1rem; width: 32px; height: 32px; }
    .feature-card__title { font-size: 0.75rem; }

    /* Pagination */
    .pagination .page-link { padding: 0.15rem 0.35rem; font-size: 0.6rem; min-width: 20px; }

    /* Forms */
    .form-control, .form-select { font-size: 0.7rem; padding: 0.25rem 0.4rem; }

    /* Sidebar */
    .dashboard__sidebar { width: 160px; }
    .dashboard__nav-link { font-size: 0.7rem; padding: 0.35rem 0.5rem; }
    .dashboard__nav-link i.bi { font-size: 0.65rem; }

    /* Header */
    .dashboard__header { padding: 0.35rem 0.5rem; }
    .dashboard__header .btn { font-size: 0.6rem; padding: 0.2rem 0.4rem; }
    .dashboard__header .btn i.bi { font-size: 0.55rem; }

    /* Navbar */
    .navbar-brand { font-size: 0.75rem; }
    .navbar-brand img { height: 22px; }
    .navbar-toggler { padding: 0.2rem 0.35rem; font-size: 0.7rem; }

    /* Auth forms */
    .auth__card { padding: 0.6rem; margin: 0.4rem; }
    .auth__title { font-size: 0.95rem; }
    .auth__card .btn { font-size: 0.65rem; }
    .auth__card i.bi { font-size: 0.65rem; }

    /* Landing hero */
    .hero__title { font-size: 1.1rem; }
    .hero__subtitle { font-size: 0.65rem; }

    /* Upload zone */
    .upload-zone { padding: 0.6rem; }
    .upload-zone i.bi { font-size: 1.2rem; }
    .upload-zone p { font-size: 0.6rem; }

    /* Conversion result cards */
    .result-card { padding: 0.5rem; }
    .result-card .btn { padding: 0.2rem 0.35rem; font-size: 0.6rem; }
    .result-card i.bi { font-size: 0.6rem; }

    /* Modals */
    .modal-dialog { margin: 0.25rem; }
    .modal-body { padding: 0.4rem; font-size: 0.7rem; }
    .modal-header { padding: 0.35rem 0.5rem; }
    .modal-footer { padding: 0.25rem 0.4rem; }
    .modal-title { font-size: 0.8rem; }
    .modal-footer .btn { font-size: 0.6rem; padding: 0.2rem 0.4rem; }

    /* Chart filter controls */
    .chart-filter { gap: 0.15rem; }
    .chart-filter .btn { padding: 0.15rem 0.3rem; font-size: 0.55rem; }
    .form-select-sm { font-size: 0.6rem !important; padding: 0.15rem 0.3rem; }

    /* Global filter bar */
    .global-filter-bar .btn { font-size: 0.55rem; padding: 0.15rem 0.3rem; }
    .global-filter-bar .form-select { font-size: 0.6rem; padding: 0.15rem 0.3rem; }

    /* Toast / alerts */
    .toast { font-size: 0.65rem; }
    .alert { font-size: 0.65rem; padding: 0.35rem 0.5rem; }
}