/* ==========================================================================
   Foto-Galerie "Unser besonderer Tag" – Design System
   ========================================================================== */

/* ===== CSS Custom Properties ===== */
:root {
    /* Colors */
    --color-bg:             #FAF8F5;
    --color-bg-alt:         #F3F0EB;
    --color-card:           #FFFFFF;
    --color-text:           #1A1A1A;
    --color-text-secondary: #6B6B6B;
    --color-text-muted:     #9A9590;
    --color-accent:         #C4A35A;
    --color-accent-hover:   #A88B3D;
    --color-accent-light:   rgba(196, 163, 90, 0.12);
    --color-accent-glow:    rgba(196, 163, 90, 0.25);
    --color-border:         #E8E4DF;
    --color-border-light:   #F0ECE7;
    --color-error:          #D64545;
    --color-error-light:    rgba(214, 69, 69, 0.08);
    --color-success:        #45A85A;
    --color-overlay:        rgba(12, 10, 8, 0.85);
    --color-glass:          rgba(255, 255, 255, 0.08);
    --color-glass-border:   rgba(255, 255, 255, 0.12);

    /* Typography */
    --font-display: 'Cormorant Garamond', 'Georgia', 'Times New Roman', serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

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

    /* Border Radius */
    --radius-xs:   6px;
    --radius-sm:   8px;
    --radius-md:   12px;
    --radius-lg:   16px;
    --radius-xl:   24px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-xs:  0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg:  0 8px 24px rgba(0,0,0,0.08);
    --shadow-xl:  0 16px 48px rgba(0,0,0,0.12);
    --shadow-glow: 0 0 24px var(--color-accent-glow);

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --t-fast:   150ms;
    --t-normal: 300ms;
    --t-slow:   500ms;
    --t-slower: 800ms;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.01em;
    transition: all var(--t-normal) var(--ease-out-expo);
    white-space: nowrap;
    user-select: none;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-full {
    width: 100%;
}

.btn-primary {
    background: var(--color-accent);
    color: #FFF;
    box-shadow: 0 2px 8px var(--color-accent-glow);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    box-shadow: 0 4px 16px var(--color-accent-glow);
    transform: translateY(-1px);
}

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

.btn-accent {
    background: var(--color-accent-light);
    color: var(--color-accent-hover);
    border: 1px solid transparent;
}

.btn-accent:hover {
    background: var(--color-accent);
    color: #FFF;
    transform: translateY(-1px);
}

.btn-accent:disabled {
    opacity: 0.4;
    pointer-events: none;
}

.btn-outline {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    background: var(--color-bg-alt);
    border-color: var(--color-text-muted);
    color: var(--color-text);
}


/* ==========================================================================
   LOGIN PAGE
   ========================================================================== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0F0D0B;
    overflow: hidden;
    position: relative;
}

/* Animated background shapes */
.login-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.login-bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: floatShape 20s ease-in-out infinite;
}

.login-bg-shape--1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #C4A35A 0%, transparent 70%);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.login-bg-shape--2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #8B6D3F 0%, transparent 70%);
    bottom: -10%;
    left: -5%;
    animation-delay: -7s;
    animation-duration: 25s;
}

.login-bg-shape--3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #D4B87A 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
    animation-duration: 18s;
}

@keyframes floatShape {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25%      { transform: translate(30px, -40px) scale(1.1); }
    50%      { transform: translate(-20px, 20px) scale(0.95); }
    75%      { transform: translate(40px, 30px) scale(1.05); }
}

/* Login card */
.login-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: var(--space-xl);
}

.login-card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl) var(--space-2xl);
    text-align: center;
    animation: cardAppear 0.8s var(--ease-out-expo) both;
    box-shadow: 0 24px 80px rgba(0,0,0,0.4);
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-icon {
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50%      { opacity: 1; transform: scale(1.05); }
}

.login-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 500;
    color: #FFF;
    margin-bottom: var(--space-sm);
    letter-spacing: 0.02em;
}

.login-subtitle {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.45);
    margin-bottom: var(--space-2xl);
    font-weight: 300;
}

.login-error {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: rgba(214, 69, 69, 0.12);
    border: 1px solid rgba(214, 69, 69, 0.2);
    color: #FF7B7B;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    margin-bottom: var(--space-lg);
    animation: shake 0.5s var(--ease-out-expo);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%      { transform: translateX(-8px); }
    40%      { transform: translateX(6px); }
    60%      { transform: translateX(-4px); }
    80%      { transform: translateX(2px); }
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.input-group {
    position: relative;
}

.input-group input {
    width: 100%;
    padding: 0.875rem 3rem 0.875rem 1.125rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    color: #FFF;
    font-size: 0.9375rem;
    font-family: var(--font-body);
    transition: all var(--t-normal) ease;
    outline: none;
}

.input-group input::placeholder {
    color: rgba(255,255,255,0.3);
}

.input-group input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
    background: rgba(255,255,255,0.08);
}

.input-toggle-pw {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.3);
    padding: 0.25rem;
    transition: color var(--t-fast) ease;
}

.input-toggle-pw:hover {
    color: rgba(255,255,255,0.6);
}

.login-page .btn-primary {
    padding: 0.875rem;
    font-size: 0.9375rem;
    margin-top: var(--space-sm);
}


/* ==========================================================================
   GALLERY PAGE
   ========================================================================== */

.gallery-page {
    background: var(--color-bg);
    min-height: 100vh;
}

/* ===== Hero / Slideshow ===== */
.hero {
    position: relative;
    width: 100%;
    height: 65vh;
    min-height: 400px;
    max-height: 700px;
    overflow: hidden;
}

.hero-slideshow {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    transform: scale(1.05);
}

.hero-slide.active {
    opacity: 1;
    animation: slowZoom 8s ease-out forwards;
}

@keyframes slowZoom {
    from { transform: scale(1.08); }
    to   { transform: scale(1); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg,
            rgba(12,10,8, 0.3) 0%,
            rgba(12,10,8, 0.1) 40%,
            rgba(12,10,8, 0.5) 75%,
            rgba(12,10,8, 0.85) 100%
        );
    z-index: 1;
}

.hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    padding: var(--space-3xl) var(--space-2xl) var(--space-2xl);
    text-align: center;
}

.hero-eyebrow {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: fadeSlideUp 0.8s var(--ease-out-expo) 0.3s both;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 500;
    color: #FFF;
    letter-spacing: 0.02em;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: fadeSlideUp 0.8s var(--ease-out-expo) 0.5s both;
}

.hero-subtitle {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.6);
    font-weight: 300;
    opacity: 0;
    animation: fadeSlideUp 0.8s var(--ease-out-expo) 0.7s both;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logout-btn {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 3;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    color: rgba(255,255,255,0.7);
    transition: all var(--t-normal) ease;
}

.logout-btn:hover {
    background: rgba(255,255,255,0.2);
    color: #FFF;
    transform: scale(1.1);
}

.hero-scroll-hint {
    position: absolute;
    bottom: var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: rgba(255,255,255,0.4);
    animation: bounceDown 2s ease-in-out infinite;
}

@keyframes bounceDown {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.4; }
    50%      { transform: translateX(-50%) translateY(6px); opacity: 0.8; }
}


/* ===== Action Bar ===== */
.action-bar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(250, 248, 245, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-light);
    transition: box-shadow var(--t-normal) ease;
}

.action-bar.scrolled {
    box-shadow: var(--shadow-md);
}

.action-bar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.action-left,
.action-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.selection-counter {
    font-size: 0.8125rem;
    color: var(--color-accent-hover);
    font-weight: 500;
    min-width: 0;
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--t-normal) var(--ease-out-back);
}

.selection-counter.visible {
    opacity: 1;
    transform: scale(1);
}


/* ===== Gallery Grid ===== */
.gallery-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-xl) var(--space-3xl);
}

/* Section Headers */
.section-header {
    margin: 0 0 var(--space-xl) 0;
    text-align: center;
}

.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.section-divider::before,
.section-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), transparent);
    max-width: 200px;
}

.section-name {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 0.02em;
}

.section-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

.gallery-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-3xl);
}

.section-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
}

.section-wrapper.collapsed .section-grid {
    max-height: 850px;
    overflow: hidden;
}

.section-collapse-action {
    display: none;
    text-align: center;
    margin-top: calc(var(--space-md) * -1);
    position: relative;
    z-index: 2;
}

.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-lg);
}

/* Image Card */
.image-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--t-slow) var(--ease-out-expo),
                transform var(--t-slow) var(--ease-out-expo);
}

.image-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.image-wrapper {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg-alt);
    cursor: pointer;
    aspect-ratio: 4 / 3;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--t-normal) ease,
                transform var(--t-normal) var(--ease-out-expo);
}

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

.image-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--t-slow) var(--ease-out-expo);
}

.image-wrapper:hover .image-thumb {
    transform: scale(1.05);
}

/* Placeholder shimmer while loading */
.image-thumb[src=""] ,
.image-thumb:not([src]) {
    background: linear-gradient(90deg,
        var(--color-bg-alt) 25%,
        var(--color-border-light) 50%,
        var(--color-bg-alt) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
    from { background-position: 200% 0; }
    to   { background-position: -200% 0; }
}

/* Hover overlay */
.image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, transparent 40%, transparent 60%, rgba(0,0,0,0.3) 100%);
    opacity: 0;
    transition: opacity var(--t-normal) ease;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--space-md);
}

.image-wrapper:hover .image-overlay {
    opacity: 1;
}

/* Selection checkbox */
.image-checkbox {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.image-checkbox input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-xs);
    border: 2px solid rgba(255,255,255,0.7);
    background: rgba(0,0,0,0.2);
    backdrop-filter: blur(4px);
    transition: all var(--t-fast) ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.checkmark::after {
    content: '';
    display: block;
    width: 6px;
    height: 10px;
    border: solid #FFF;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--t-fast) var(--ease-out-back);
    margin-top: -2px;
}

.image-checkbox input:checked + .checkmark {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.image-checkbox input:checked + .checkmark::after {
    transform: rotate(45deg) scale(1);
}

/* When selected, always show overlay */
.image-card.selected .image-overlay {
    opacity: 1;
}

.image-card.selected .image-wrapper {
    box-shadow: 0 0 0 3px var(--color-accent), var(--shadow-lg);
}

/* Download button on card */
.image-download {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(4px);
    color: #FFF;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--t-fast) ease;
}

.image-download:hover {
    background: var(--color-accent);
    transform: scale(1.1);
}

/* Image info below card */
.image-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-xs);
}

.image-name {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 65%;
}

.image-size {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}


/* ===== Loading / Empty State ===== */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-3xl);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.loading-spinner.small {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

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

.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
    color: var(--color-text-muted);
}

.empty-state svg {
    margin-bottom: var(--space-lg);
    opacity: 0.4;
}

.empty-state h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    font-size: 0.9375rem;
}

/* Scroll sentinel (invisible) */
.scroll-sentinel {
    height: 1px;
    width: 100%;
}


/* ==========================================================================
   LIGHTBOX
   ========================================================================== */

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-normal) ease, visibility var(--t-normal) ease;
}

.lightbox.open {
    opacity: 1;
    visibility: visible;
}

.lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 6, 4, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.lightbox-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 3;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--t-fast) ease;
}

.lightbox-close:hover {
    background: rgba(255,255,255,0.15);
    color: #FFF;
    transform: scale(1.1);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--t-fast) ease;
}

.lightbox-nav:hover {
    background: rgba(255,255,255,0.12);
    color: #FFF;
}

.lightbox-prev { left: var(--space-lg); }
.lightbox-next { right: var(--space-lg); }

.lightbox-content {
    position: relative;
    z-index: 2;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.lightbox-loading .loading-spinner {
    border-color: rgba(255,255,255,0.1);
    border-top-color: var(--color-accent);
}

#lightbox-image {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: opacity var(--t-normal) ease;
    user-select: none;
}

#lightbox-image.loaded {
    opacity: 1;
}

.lightbox-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
}

.lightbox-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lightbox-filename {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.8);
    font-weight: 400;
}

.lightbox-counter {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
}


/* ==========================================================================
   DOWNLOAD MODAL
   ========================================================================== */

.download-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--t-normal) ease;
}

.download-modal.open {
    opacity: 1;
    visibility: visible;
}

.download-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
}

.download-modal-card {
    position: relative;
    z-index: 1;
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    max-width: 420px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: modalAppear var(--t-normal) var(--ease-out-expo) both;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
}

.download-modal-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.download-progress {
    width: 100%;
    height: 6px;
    background: var(--color-bg-alt);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.download-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-hover));
    border-radius: 3px;
    width: 0%;
    transition: width var(--t-slow) var(--ease-out-expo);
}

.download-progress-text {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}


/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */

.toast-container {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
}

.toast {
    background: var(--color-text);
    color: #FFF;
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 400;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    pointer-events: auto;
    animation: toastIn var(--t-normal) var(--ease-out-back) both;
    max-width: 360px;
}

.toast.toast-out {
    animation: toastOut var(--t-normal) ease both;
}

.toast.toast-success {
    background: #2D5F3A;
}

.toast.toast-error {
    background: #7A2828;
}

.toast svg {
    flex-shrink: 0;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.9);
    }
}

@keyframes toastOut {
    to {
        opacity: 0;
        transform: translateY(-8px) scale(0.9);
    }
}


/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: var(--space-md);
    }

    .gallery-container {
        padding: var(--space-lg) var(--space-lg) var(--space-2xl);
    }

    .action-bar-inner {
        padding: var(--space-sm) var(--space-lg);
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .hero {
        height: 50vh;
        min-height: 300px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .action-bar-inner {
        flex-wrap: wrap;
        gap: var(--space-sm);
        padding: var(--space-sm) var(--space-md);
    }

    .action-left {
        order: 2;
        width: 100%;
    }

    .action-right {
        order: 1;
        width: 100%;
        justify-content: stretch;
    }

    .action-right .btn {
        flex: 1;
    }

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

    .lightbox-prev { left: var(--space-sm); }
    .lightbox-next { right: var(--space-sm); }

    .lightbox-footer {
        padding: var(--space-md);
    }

    .lightbox-close {
        top: var(--space-md);
        right: var(--space-md);
    }

    .gallery-container {
        padding: var(--space-md) var(--space-md) var(--space-2xl);
    }

    /* Always show overlay controls on touch devices */
    .image-overlay {
        opacity: 1;
        background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, transparent 50%, transparent 100%);
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .image-info {
        padding: var(--space-xs) 0;
    }

    .image-name {
        font-size: 0.6875rem;
    }

    .image-size {
        font-size: 0.625rem;
    }

    .btn-sm {
        padding: 0.4rem 0.75rem;
        font-size: 0.75rem;
    }

    .btn-sm span {
        display: none;
    }

    .btn-sm svg {
        width: 18px;
        height: 18px;
    }

    .login-card {
        padding: var(--space-2xl) var(--space-lg);
    }

    .toast-container {
        left: var(--space-md);
        right: var(--space-md);
        bottom: var(--space-md);
    }

    .toast {
        max-width: 100%;
    }
}

/* ===== Print ===== */
@media print {
    .action-bar,
    .lightbox,
    .download-modal,
    .toast-container,
    .logout-btn,
    .hero-scroll-hint,
    .image-overlay {
        display: none !important;
    }
}