/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* CSS Variables for Light/Dark Themes */
:root {
    --bg-gradient-light: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --bg-gradient-dark: linear-gradient(135deg, #141e30 0%, #243b55 100%);
    --card-bg-light: rgba(255, 255, 255, 0.8);
    --card-bg-dark: rgba(0, 0, 0, 0.6);
    --text-light: #1e293b;
    --text-dark: #f1f5f9;
    --border-light: rgba(255, 255, 255, 0.3);
    --border-dark: rgba(255, 255, 255, 0.1);
    --shadow-light: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 8px 32px rgba(0, 0, 0, 0.4);
    --accent: #6366f1;
    --accent-hover: #4f52e0;
    --danger: #ef4444;
    --success: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-gradient-light);
    color: var(--text-light);
    min-height: 100vh;
    transition: background 0.3s, color 0.3s;
}

body.dark-theme {
    background: var(--bg-gradient-dark);
    color: var(--text-dark);
}

/* Container */
.container-custom {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--card-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-light);
    transition: transform 0.2s, box-shadow 0.2s;
}

.dark-theme .glass-card {
    background: var(--card-bg-dark);
    border-color: var(--border-dark);
    box-shadow: var(--shadow-dark);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Buttons */
.btn-modern {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 2rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    background: var(--accent);
    color: white;
    transition: all 0.2s;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-modern:hover {
    background: var(--accent-hover);
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-modern.danger {
    background: var(--danger);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-modern.danger:hover {
    background: #dc2626;
}

.btn-modern.success {
    background: var(--success);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-modern:disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* Camera Page */
.camera-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 800px;
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

#video {
    width: 100%;
    height: auto;
    display: block;
    background: #000;
}

.record-indicator {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 16px;
    height: 16px;
    background: red;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
    box-shadow: 0 0 10px red;
    display: none;
}

.record-indicator.active {
    display: block;
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
    100% { opacity: 1; transform: scale(1); }
}

.controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 1rem;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
}

.gallery-item {
    position: relative;
    border-radius: 1.2rem;
    overflow: hidden;
    background: var(--card-bg-light);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    transition: transform 0.3s, box-shadow 0.3s;
}

.dark-theme .gallery-item {
    background: var(--card-bg-dark);
    border-color: var(--border-dark);
}

.gallery-item:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.gallery-media {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 1rem;
    color: white;
    opacity: 0;
    transition: opacity 0.3s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-info {
    font-size: 0.9rem;
}

.gallery-delete {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    backdrop-filter: blur(5px);
    transition: background 0.2s;
}

.gallery-delete:hover {
    background: var(--danger);
}

/* Login/Register Tabs */
.auth-card {
    max-width: 450px;
    margin: 2rem auto;
    padding: 2rem;
}

.auth-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.5rem;
}

.auth-tab {
    background: none;
    border: none;
    font-size: 1.2rem;
    font-weight: 600;
    color: inherit;
    opacity: 0.6;
    cursor: pointer;
    transition: opacity 0.2s;
    padding: 0.5rem 1rem;
    position: relative;
}

.auth-tab.active {
    opacity: 1;
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}

/* Form inputs */
.form-floating {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-floating input {
    width: 100%;
    padding: 1rem 1rem 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    color: inherit;
    font-size: 1rem;
    outline: none;
    transition: border 0.2s;
}

.form-floating input:focus {
    border-color: var(--accent);
}

.form-floating label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    transition: 0.2s;
    pointer-events: none;
    color: rgba(255, 255, 255, 0.6);
}

.form-floating input:focus ~ label,
.form-floating input:not(:placeholder-shown) ~ label {
    transform: translateY(-1.2rem) scale(0.85);
    color: var(--accent);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--card-bg-light);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100;
    box-shadow: var(--shadow-light);
    transition: transform 0.2s;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.dark-theme .theme-toggle {
    background: var(--card-bg-dark);
    border-color: var(--border-dark);
}

/* Navbar */
.navbar-modern {
    background: var(--card-bg-light);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.dark-theme .navbar-modern {
    background: var(--card-bg-dark);
    border-color: var(--border-dark);
}

.nav-brand a {
    font-weight: 700;
    font-size: 1.5rem;
    color: inherit;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: inherit;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Hamburger menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background: var(--text-light);
    border-radius: 10px;
    transition: all 0.3s;
}

.dark-theme .hamburger span {
    background: var(--text-dark);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile styles */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--card-bg-light);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-light);
        padding: 1rem;
        gap: 1rem;
        display: none;
        z-index: 99;
    }
    .nav-links.show {
        display: flex;
    }
    .dark-theme .nav-links {
        background: var(--card-bg-dark);
        border-color: var(--border-dark);
    }

    .controls {
        flex-direction: column;
        align-items: center;
    }
    .btn-modern {
        width: 100%;
        justify-content: center;
    }
}