/* Main Stylesheet for Tanja's Website */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Lato:wght@300;400;700&family=Playfair+Display:wght@400;500;600;700&display=swap');

/* Import CSS Variables */
@import url('variables.css');

/* Reset & Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

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

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

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

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

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

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--btn-padding-y) var(--btn-padding-x);
    font-family: var(--font-body);
    font-size: var(--btn-font-size);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--btn-border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn--primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--secondary {
    background-color: var(--color-secondary);
    color: var(--color-text);
}

.btn--secondary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn--large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-xl);
}

.btn--small {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-sm);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background-color: var(--color-background);
    box-shadow: var(--shadow-md);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
}

.nav__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo {
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-decoration: none;
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav__link {
    font-family: var(--font-body);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    text-decoration: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 80%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav__toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-background-alt) 100%);
    overflow: hidden;
}

.hero__content {
    text-align: center;
    max-width: 800px;
    padding: var(--space-2xl);
    animation: fadeInUp 1s ease-out;
}

.hero__title {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero__subtitle {
    font-size: var(--font-size-2xl);
    font-family: var(--font-accent);
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero__images {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    margin-top: var(--space-2xl);
    animation: fadeInUp 1s ease-out 0.8s both;
}

.hero__image {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-full);
    object-fit: cover;
    box-shadow: var(--shadow-xl);
    border: 4px solid var(--color-white);
    transition: transform var(--transition-base);
}

.hero__image:hover {
    transform: scale(1.05);
}

.hero__actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    margin-top: var(--space-2xl);
    animation: fadeInUp 1s ease-out 1s both;
}

/* Section Styles */
.section {
    padding: var(--space-4xl) 0;
}

.section__title {
    text-align: center;
    font-size: var(--font-size-4xl);
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
}

.section__subtitle {
    text-align: center;
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--space-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about {
    background-color: var(--color-background-alt);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about__image {
    width: 100%;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 8px solid var(--color-white);
}

.about__text {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

.about__text p {
    margin-bottom: var(--space-lg);
}

/* Gallery Grid */
.gallery {
    background-color: var(--color-background);
}

.gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gallery-grid-gap);
    margin-top: var(--space-2xl);
}

.gallery__item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.gallery__item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.gallery__image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.gallery__item:hover .gallery__image {
    transform: scale(1.1);
}

.gallery__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: flex-end;
    padding: var(--space-lg);
}

.gallery__item:hover .gallery__overlay {
    opacity: 1;
}

.gallery__title {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

/* Gallery Selector */
.gallery__selector,
.video-gallery__selector {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.gallery__selector-label,
.video-gallery__selector-label {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.gallery__selector-select,
.video-gallery__selector-select {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-body);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 250px;
    max-width: 100%;
}

.gallery__selector-select:hover,
.video-gallery__selector-select:hover {
    border-color: var(--color-primary-dark);
}

.gallery__selector-select:focus,
.video-gallery__selector-select:focus {
    outline: none;
    border-color: var(--color-primary-dark);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.gallery__selector-select:disabled,
.video-gallery__selector-select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.gallery__selector-info,
.video-gallery__selector-info {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    text-align: center;
}

/* Loading State */
.gallery__grid--loading,
.video-gallery__grid--loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.gallery__grid--loading::after,
.video-gallery__grid--loading::after {
    content: 'Loading...';
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
}

/* Empty State */
.gallery__grid--empty,
.video-gallery__grid--empty {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    text-align: center;
}

.gallery__grid--empty::before,
.video-gallery__grid--empty::before {
    content: '📁';
    font-size: 4rem;
    margin-bottom: var(--space-md);
}

.gallery__grid--empty::after,
.video-gallery__grid--empty::after {
    content: 'No images found in this collection';
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
}

/* Video Gallery */
.video-gallery {
    background-color: var(--color-background-alt);
}

.video-gallery__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gallery-grid-gap);
    margin-top: var(--space-2xl);
}

.video-gallery__item {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

/* Vertical video support */
.video-gallery__item--vertical {
    aspect-ratio: 9/16;
}

.video-gallery__item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.video-gallery__thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-gallery__play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.video-gallery__play-button::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 20px solid var(--color-white);
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

.video-gallery__item:hover .video-gallery__play-button {
    background-color: var(--color-primary-dark);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-gallery__info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    color: var(--color-white);
}

.video-gallery__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-xs);
}

.video-gallery__duration {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* Stories List */
.stories {
    background-color: var(--color-background);
}

.stories__list {
    max-width: 800px;
    margin: var(--space-2xl) auto 0;
}

.stories__item {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.stories__title {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.stories__meta {
    display: flex;
    gap: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.stories__excerpt {
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

.stories__read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    transition: gap var(--transition-fast);
}

.stories__read-more:hover {
    gap: var(--space-sm);
}

.stories__read-more::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.stories__read-more:hover::after {
    transform: translateX(4px);
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lightbox--active {
    display: flex;
    opacity: 1;
}

.lightbox__image {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-2xl);
}

.lightbox__close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    background-color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.lightbox__close:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: rotate(90deg);
}

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

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

.lightbox__nav--prev {
    left: var(--space-lg);
}

.lightbox__nav--next {
    right: var(--space-lg);
}

/* Video Modal */
.video-modal {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.video-modal--active {
    display: flex;
    opacity: 1;
}

.video-modal__container {
    width: 90%;
    max-width: 1000px;
    aspect-ratio: 16/9;
    background-color: var(--color-black);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

/* Vertical video modal support */
.video-modal__container--vertical {
    max-width: 500px;
    aspect-ratio: 9/16;
}

.video-modal__video {
    width: 100%;
    height: 100%;
}

.video-modal__close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 50px;
    height: 50px;
    background-color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.video-modal__close:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: rotate(90deg);
}

/* Age Verification */
.age-verification {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.age-verification__content {
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    max-width: 600px;
    text-align: center;
    box-shadow: var(--shadow-2xl);
    animation: fadeInUp 0.5s ease-out;
}

.age-verification__icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
}

.age-verification__title {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.age-verification__text {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
    line-height: var(--line-height-relaxed);
}

.age-verification__warning {
    background-color: #FFF3CD;
    border-left: 4px solid #FFC107;
    padding: var(--space-md);
    margin-bottom: var(--space-xl);
    text-align: left;
    font-size: var(--font-size-sm);
    color: #856404;
}

.age-verification__actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: var(--color-white);
    padding: var(--space-3xl) 0;
    text-align: center;
}

.footer__text {
    font-size: var(--font-size-sm);
    opacity: 0.8;
    margin-bottom: var(--space-sm);
}

.footer__link {
    color: var(--color-white);
    text-decoration: underline;
    transition: opacity var(--transition-fast);
}

.footer__link:hover {
    opacity: 0.8;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--space-sm); }
.pt-2 { padding-top: var(--space-md); }
.pt-3 { padding-top: var(--space-lg); }
.pt-4 { padding-top: var(--space-xl); }
.pt-5 { padding-top: var(--space-2xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--space-sm); }
.pb-2 { padding-bottom: var(--space-md); }
.pb-3 { padding-bottom: var(--space-lg); }
.pb-4 { padding-bottom: var(--space-xl); }
.pb-5 { padding-bottom: var(--space-2xl); }

.hidden {
    display: none !important;
}

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

/* Image Upload Section */
.upload-section {
    background-color: var(--color-background-alt);
    padding: var(--space-4xl) 0;
}

.upload-section__title {
    text-align: center;
    font-size: var(--font-size-4xl);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.upload-section__subtitle {
    text-align: center;
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--space-3xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.upload-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: var(--space-3xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.upload-form__group {
    margin-bottom: var(--space-xl);
}

.upload-form__label {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.upload-form__input {
    width: 100%;
    padding: var(--space-md);
    font-size: var(--font-size-base);
    font-family: var(--font-body);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-white);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.upload-form__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.upload-form__input::placeholder {
    color: var(--color-text-muted);
}

.upload-form__file-input {
    width: 100%;
    padding: var(--space-md);
    font-size: var(--font-size-base);
    font-family: var(--font-body);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-form__file-input:hover {
    border-color: var(--color-primary);
    background-color: var(--color-background-alt);
}

.upload-form__file-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

.upload-form__preview {
    margin-top: var(--space-md);
    min-height: 200px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    overflow: hidden;
}

.upload-form__preview-placeholder {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    text-align: center;
    padding: var(--space-lg);
}

.upload-form__preview-image {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.upload-form__checkbox-group {
    margin-bottom: var(--space-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.upload-form__checkbox {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.upload-form__checkbox-label {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    line-height: var(--line-height-normal);
    cursor: pointer;
    padding-left: var(--space-xs);
}

.upload-form__hint {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.upload-form__error {
    display: block;
    font-size: var(--font-size-sm);
    color: #dc3545;
    margin-top: var(--space-xs);
    min-height: 20px;
}

.upload-form__submit {
    width: 100%;
    margin-top: var(--space-lg);
}

.upload-form__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.upload-form__loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding: var(--space-xl);
    background-color: var(--color-background);
    border-radius: var(--radius-md);
}

.upload-form__spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.upload-form__message {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    text-align: center;
    animation: fadeInUp 0.3s ease-out;
}

.upload-form__message--success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.upload-form__message--error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.upload-form__message--success::before {
    content: '✓ ';
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
}

.upload-form__message--error::before {
    content: '✕ ';
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
}

/* Sample Analysis Section */
.sample-analysis {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    margin-top: var(--space-2xl);
    align-items: start;
}

.sample-analysis__image-container {
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 8px solid var(--color-white);
}

.sample-analysis__image {
    width: 100%;
    height: auto;
    max-width: 400px;
    display: block;
    object-fit: contain;
}

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

.sample-analysis__section {
    margin-bottom: var(--space-xl);
}

.sample-analysis__section:last-child {
    margin-bottom: 0;
}

.sample-analysis__section-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

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

.sample-analysis__list li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text);
    line-height: var(--line-height-relaxed);
}

.sample-analysis__list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.sample-analysis__list--numbered {
    counter-reset: sample-counter;
}

.sample-analysis__list--numbered li {
    counter-increment: sample-counter;
}

.sample-analysis__list--numbered li::before {
    content: counter(sample-counter) '.';
}

/* Steps Section */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.steps__item {
    text-align: center;
    padding: var(--space-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.steps__item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.steps__number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin: 0 auto var(--space-lg);
    box-shadow: var(--shadow-lg);
}

.steps__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.steps__description {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* FAQ Section */
.faq {
    max-width: 800px;
    margin: var(--space-2xl) auto 0;
}

.faq__item {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.faq__item:hover {
    box-shadow: var(--shadow-lg);
}

.faq__question {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.faq__answer {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* Section Alt Background */
.section--alt {
    background-color: var(--color-background-alt);
}

/* Sample Analysis Modal */
.sample-analysis-modal__overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.sample-analysis-modal__overlay--active {
    opacity: 1;
    visibility: visible;
}

.sample-analysis-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    background-color: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    overflow: hidden;
}

.sample-analysis-modal--active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.sample-analysis-modal__content {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 90vh;
}

.sample-analysis-modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl);
    border-bottom: 2px solid var(--color-border);
    background-color: var(--color-background-alt);
}

.sample-analysis-modal__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin: 0;
}

.sample-analysis-modal__close {
    width: 40px;
    height: 40px;
    background-color: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-2xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--color-text);
}

.sample-analysis-modal__close:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: rotate(90deg);
}

.sample-analysis-modal__body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    padding: var(--space-2xl);
    overflow-y: auto;
    flex: 1;
}

.sample-analysis-modal__image-container {
    background-color: var(--color-background);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.sample-analysis-modal__image {
    max-width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.sample-analysis-modal__content-container {
    overflow-y: auto;
}

.sample-analysis-modal__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
}

.sample-analysis-modal__error {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    color: #dc3545;
    font-size: var(--font-size-lg);
    text-align: center;
}

.sample-analysis-modal__section {
    margin-bottom: var(--space-xl);
}

.sample-analysis-modal__section:last-child {
    margin-bottom: 0;
}

.sample-analysis-modal__section-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.sample-analysis-modal__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sample-analysis-modal__list-item {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--color-text);
    line-height: var(--line-height-relaxed);
}

.sample-analysis-modal__list-item::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}