/* main.css - Warm & Inviting Wedding App */
@import 'variables.css';
@import 'animations.css';

/* === RESET & BASE === */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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(--text-primary);
    background: var(--gradient-hero);
    min-height: 100vh;
    overflow-x: hidden;
}

/* === TYPOGRAPHY === */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-black);
}

h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
}

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

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

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

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

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    outline: none;
    user-select: none;
}

/* === LAYOUT === */

/* App Navigation */
.app-nav {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color-light);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
    margin-bottom: var(--spacing-xl);
}

.nav-container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h2 {
    margin: 0;
}

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

.nav-link {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-2xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
    min-width: 64px;
    text-align: center;
}

.nav-link span:first-child {
    font-size: 20px;
}

.nav-link:hover {
    background: var(--bg-subtle);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.nav-link.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

/* Main Container */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-3xl);
    min-height: 100vh;
}

@media (min-width: 768px) {
    .app-container {
        padding: 0 var(--spacing-2xl) var(--spacing-4xl);
    }

    .nav-container {
        padding: var(--spacing-lg) var(--spacing-2xl);
    }
}

/* === BUTTONS === */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    min-height: 48px;
    border-radius: var(--radius-lg);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.01em;
    transition: all var(--transition-base);
    width: 100%;
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-card);
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-ghost:hover {
    background: var(--bg-subtle);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* === CARDS === */

.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color-light);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

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

.card:hover::before {
    opacity: 1;
}

/* === FORMS === */

.input-group {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.input-field {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 48px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-card);
    transition: all var(--transition-base);
}

.input-field::placeholder {
    color: var(--text-muted);
}

.input-field:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 122, 0.1);
    outline: none;
}

.input-field:hover:not(:focus) {
    border-color: var(--color-primary-light);
}

/* === PROGRESS BAR === */

.progress-container {
    background: rgba(255, 107, 122, 0.1);
    height: 12px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.progress-bar {
    background: var(--gradient-primary);
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 1s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 0 16px rgba(255, 107, 122, 0.5);
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.4),
            transparent);
    animation: shimmer 2s infinite;
}

/* === TASK CARDS === */

.task-card {
    position: relative;
}

.task-card.completed {
    opacity: 0.9;
    background: linear-gradient(135deg,
            rgba(92, 184, 92, 0.04),
            var(--bg-card));
}

.task-card.completed::before {
    background: var(--gradient-gold);
    opacity: 1;
}

/* === PHOTO GRID === */

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.photo-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--bg-subtle);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.photo-item:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-lg);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-base);
}

.photo-item:hover img {
    transform: scale(1.05);
}

/* === LOADING === */

.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--gradient-primary);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* === LIGHTBOX === */

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-overlay);
    backdrop-filter: var(--backdrop-blur-heavy);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    animation: fadeIn 0.3s ease;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    position: relative;
    animation: scaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
}

.lightbox-close {
    position: absolute;
    top: calc(-1 * var(--spacing-3xl));
    right: 0;
    background: var(--bg-card);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 24px;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.lightbox-close:hover {
    background: var(--color-primary);
    color: white;
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-card);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 32px;
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-fast);
}

.lightbox-prev {
    left: var(--spacing-lg);
}

.lightbox-next {
    right: var(--spacing-lg);
}

.lightbox-nav:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-50%) scale(1.1);
}

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

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

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

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

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

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

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

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

.text-lg {
    font-size: var(--font-size-lg);
}

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

.font-heading {
    font-family: var(--font-heading);
}

.font-body {
    font-family: var(--font-body);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.divider {
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    margin: var(--spacing-xl) auto;
    border-radius: var(--radius-full);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-2xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

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

.badge-success {
    background: var(--color-success);
    color: white;
}

/* === MOBILE OPTIMIZATION === */

@media (max-width: 767px) {
    .app-container {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-md);
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-sm);
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

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

    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 28px;
    }

    .lightbox-prev {
        left: var(--spacing-sm);
    }

    .lightbox-next {
        right: var(--spacing-sm);
    }
}

/* === ACCESSIBILITY === */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* === CUSTOM SCROLLBAR === */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 107, 122, 0.08);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-dark);
}