/**
 * AVDash Theme System
 * Dynamic color themes based on moods, with Material 3 Expressive base
 * 2025 Gen-Z teen-couple aesthetic: pastels, glassmorphism, neon glows
 */

:root {
    /* Base Material 3 Colors */
    --primary: #ff6b9d;
    --primary-dark: #ff4d7a;
    --primary-light: #ffb3d1;
    --secondary: #a8e6cf;
    --secondary-dark: #7dd3a0;
    --secondary-light: #d4f4e6;
    --accent: #c8a8e9;
    --accent-dark: #a67cd4;
    --accent-light: #e4d4f4;
    
    /* Personalized User Colors (Dynamic) */
    --primary-color-adrian: #ff6b9d;
    --secondary-color-adrian: #a8e6cf;
    --accent-color-adrian: #c8a8e9;
    --background-texture-adrian: linear-gradient(135deg, #1a0f15 0%, #2d1a2d 100%);
    
    --primary-color-vlada: #8b5cf6;
    --secondary-color-vlada: #a78bfa;
    --accent-color-vlada: #c4b5fd;
    --background-texture-vlada: linear-gradient(135deg, #0f0a1a 0%, #1a0f2d 100%);
    
    /* Neutral colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #b8b8d4;
    --text-tertiary: #8a8aa8;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(20px);
    
    /* Neon glows */
    --glow-primary: 0 0 20px rgba(255, 107, 157, 0.5);
    --glow-secondary: 0 0 20px rgba(168, 230, 207, 0.5);
    --glow-accent: 0 0 20px rgba(200, 168, 233, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Dynamic mood-based themes */
[data-theme="happy"] {
    --primary: #ffd93d;
    --secondary: #ff9f66;
    --accent: #ff6b9d;
    --bg-primary: #1a0f1a;
    --glow-primary: 0 0 30px rgba(255, 217, 61, 0.6);
}

[data-theme="relaxed"] {
    --primary: #6bcf7f;
    --secondary: #4ecdc4;
    --accent: #95e1d3;
    --bg-primary: #0f1a1a;
    --glow-primary: 0 0 30px rgba(107, 207, 127, 0.6);
}

[data-theme="loving"] {
    --primary: #ff6b9d;
    --secondary: #ff8fab;
    --accent: #ffb3d1;
    --bg-primary: #1a0f15;
    --glow-primary: 0 0 30px rgba(255, 107, 157, 0.7);
}

[data-theme="cozy-night"] {
    --primary: #8b5cf6;
    --secondary: #a78bfa;
    --accent: #c4b5fd;
    --bg-primary: #0f0a1a;
    --glow-primary: 0 0 30px rgba(139, 92, 246, 0.6);
}

[data-theme="beach-day"] {
    --primary: #06b6d4;
    --secondary: #22d3ee;
    --accent: #67e8f9;
    --bg-primary: #0a1a1f;
    --glow-primary: 0 0 30px rgba(6, 182, 212, 0.6);
}

[data-theme="love-glow"] {
    --primary: #ff6b9d;
    --secondary: #ff8fab;
    --accent: #ffb3d1;
    --bg-primary: #1a0f15;
    --glow-primary: 0 0 40px rgba(255, 107, 157, 0.8);
    background: linear-gradient(135deg, #1a0f15 0%, #2d1a2d 50%, #1a0f15 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background var(--transition-slow);
}

/* Animated gradient background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        var(--bg-primary) 0%,
        var(--bg-secondary) 50%,
        var(--bg-tertiary) 100%
    );
    z-index: -2;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Floating particles background */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 107, 157, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(168, 230, 207, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(200, 168, 233, 0.1) 0%, transparent 50%);
    z-index: -1;
    animation: particleFloat 30s ease-in-out infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

/* Glassmorphism card base */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg), var(--glow-primary);
    transform: translateY(-2px);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    line-height: 1.6;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

.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 0.6s, height 0.6s;
}

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

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

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Utility classes */
.hidden {
    display: none !important;
}

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

.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Toast notifications */
.toast {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* User-specific styling */
.user-adrian .nav-user,
.user-adrian .user-profile {
    --user-primary: var(--primary-color-adrian);
    --user-secondary: var(--secondary-color-adrian);
}

.user-vlada .nav-user,
.user-vlada .user-profile {
    --user-primary: var(--primary-color-vlada);
    --user-secondary: var(--secondary-color-vlada);
}

/* Active profile indicators */
.adrian-active-profile {
    border-color: var(--primary-color-adrian) !important;
    box-shadow: 0 0 20px rgba(255, 107, 157, 0.5) !important;
}

.vlada-active-profile {
    border-color: var(--primary-color-vlada) !important;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.5) !important;
}

/* Dynamic background textures */
body.user-adrian::before {
    background: var(--background-texture-adrian);
}

body.user-vlada::before {
    background: var(--background-texture-vlada);
}

/* Modern Navigation Bar - Applied to all pages */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 80px;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1) 0%, rgba(168, 230, 207, 0.1) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-lg);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        var(--glow-primary);
    transition: all var(--transition-normal);
    animation: navbarGlow 3s ease-in-out infinite;
}

@keyframes navbarGlow {
    0%, 100% {
        box-shadow: 
            0 8px 32px rgba(0, 0, 0, 0.3),
            0 0 0 1px rgba(255, 255, 255, 0.05) inset,
            0 0 20px rgba(255, 107, 157, 0.3);
    }
    50% {
        box-shadow: 
            0 8px 32px rgba(0, 0, 0, 0.3),
            0 0 0 1px rgba(255, 255, 255, 0.05) inset,
            0 0 30px rgba(168, 230, 207, 0.4);
    }
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-brand h1 {
    font-size: 1.8rem;
    margin: 0;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-shadow: 0 0 30px rgba(255, 107, 157, 0.5);
    position: relative;
    animation: gradientShift 3s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.nav-links {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    align-items: center;
    flex: 1;
    justify-content: center;
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-md);
    text-decoration: none;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
    font-size: 0.95rem;
    background: transparent;
    font-weight: 500;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 107, 157, 0.2), transparent);
    transition: left 0.5s ease;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    color: var(--primary);
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.15), rgba(168, 230, 207, 0.1));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.2);
}

.nav-link.active {
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.25), rgba(168, 230, 207, 0.15));
    font-weight: 600;
    box-shadow: 
        0 4px 12px rgba(255, 107, 157, 0.3),
        0 0 20px rgba(255, 107, 157, 0.2) inset;
    border: 1px solid rgba(255, 107, 157, 0.3);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    height: 100%;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.user-avatar-container {
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.user-avatar-container:hover {
    transform: scale(1.05);
}

.user-avatar-container:hover .user-avatar {
    box-shadow: 0 0 20px var(--primary);
}

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.3rem;
    box-shadow: 
        0 0 20px rgba(255, 107, 157, 0.5),
        0 0 40px rgba(168, 230, 207, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    position: relative;
    animation: avatarPulse 2s ease-in-out infinite;
}

@keyframes avatarPulse {
    0%, 100% {
        box-shadow: 
            0 0 20px rgba(255, 107, 157, 0.5),
            0 0 40px rgba(168, 230, 207, 0.3);
    }
    50% {
        box-shadow: 
            0 0 30px rgba(255, 107, 157, 0.7),
            0 0 60px rgba(168, 230, 207, 0.5);
    }
}

.user-avatar-container:hover .user-avatar {
    border-color: var(--primary);
    transform: scale(1.1) rotate(5deg);
    box-shadow: 
        0 0 30px rgba(255, 107, 157, 0.8),
        0 0 60px rgba(168, 230, 207, 0.6);
}

.user-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.btn-settings,
.btn-logout {
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1), rgba(168, 230, 207, 0.05));
    border: 1px solid rgba(255, 107, 157, 0.3);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 0.85rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
    margin-left: var(--spacing-xs);
}

.btn-settings::before,
.btn-logout::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-settings:hover::before,
.btn-logout:hover::before {
    left: 100%;
}

.btn-settings:hover,
.btn-logout:hover {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.2), rgba(168, 230, 207, 0.15));
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 
        0 4px 12px rgba(255, 107, 157, 0.3),
        0 0 20px rgba(255, 107, 157, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .navbar {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 60px;
    }
    
    .nav-content {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .nav-links {
        gap: var(--spacing-xs);
        font-size: 0.85rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-brand h1 {
        font-size: 1.2rem;
    }
    
    .nav-user {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .user-profile {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xs);
    }
    
    .btn-logout {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Extra small phones */
@media (max-width: 480px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
    }
    
    .navbar {
        padding: var(--spacing-xs) var(--spacing-sm);
        min-height: 50px;
    }
    
    .nav-brand h1 {
        font-size: 1rem;
    }
    
    .nav-links {
        font-size: 0.75rem;
        gap: 0.25rem;
    }
    
    .nav-link {
        padding: 0.25rem 0.5rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    h3 {
        font-size: 1.1rem;
    }
}

/* Smartwatch and very small devices (Samsung Galaxy Watch 7, Apple Watch, etc.) */
@media (max-width: 400px) {
    :root {
        --spacing-xs: 0.25rem;
        --spacing-sm: 0.5rem;
        --spacing-md: 0.75rem;
        --spacing-lg: 1rem;
    }
    
    .navbar {
        padding: 0.25rem 0.5rem;
        min-height: 45px;
    }
    
    .nav-brand h1 {
        font-size: 0.9rem;
    }
    
    .nav-links {
        font-size: 0.7rem;
        gap: 0.2rem;
    }
    
    .nav-link {
        padding: 0.2rem 0.4rem;
    }
    
    .nav-user {
        font-size: 0.7rem;
    }
    
    .user-avatar {
        width: 24px;
        height: 24px;
        font-size: 0.7rem;
    }
    
    .btn-logout {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
    
    h1 {
        font-size: 1.25rem;
    }
    
    h2 {
        font-size: 1.1rem;
    }
    
    h3 {
        font-size: 1rem;
    }
    
    .data-widget {
        padding: var(--spacing-sm);
    }
    
    .data-widget h2,
    .data-widget h3 {
        font-size: 1rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .countdown-value {
        font-size: 1.2rem;
    }
    
    .countdown-label {
        font-size: 0.7rem;
    }
    
    .clock-time {
        font-size: 1.2rem;
    }
    
    .clock-date {
        font-size: 0.8rem;
    }
    
    .counter-number {
        font-size: 1.5rem;
    }
}