/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cute Color Palette */
    --primary: #FFB6D9;
    --primary-dark: #FF8DC7;
    --secondary: #C5A3FF;
    --accent: #A8E6CF;
    --background: #FFF5F8;
    --surface: #FFFFFF;
    --text-primary: #4A4A4A;
    --text-secondary: #8E8E8E;
    --shadow: rgba(255, 182, 217, 0.3);
    --shadow-strong: rgba(255, 182, 217, 0.5);
    
    /* Safe area insets for notch support */
    --safe-area-top: env(safe-area-inset-top);
    --safe-area-bottom: env(safe-area-inset-bottom);
    --safe-area-left: env(safe-area-inset-left);
    --safe-area-right: env(safe-area-inset-right);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #FFF5F8 0%, #FFE8F0 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.hidden {
    display: none !important;
}

/* Main App */
.main-app {
    min-height: 100vh;
    padding-top: calc(var(--safe-area-top) + 80px);
    padding-bottom: calc(var(--safe-area-bottom) + 20px);
    padding-left: calc(var(--safe-area-left) + 20px);
    padding-right: calc(var(--safe-area-right) + 20px);
}

/* Header */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px var(--shadow);
    z-index: 100;
    padding-top: var(--safe-area-top);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: calc(20px + var(--safe-area-left));
    padding-right: calc(20px + var(--safe-area-right));
}

.app-title {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 8px;
}

.title-icon {
    font-size: 28px;
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.2) rotate(10deg); }
}

/* Add Font Button */
.add-font-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.add-font-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-strong);
}

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

.btn-icon {
    width: 20px;
    height: 20px;
}

/* Toolbar */
.toolbar {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.search-container {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    stroke: var(--text-secondary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 2px solid #f0f0f0;
    border-radius: 25px;
    font-size: 14px;
    background: white;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 182, 217, 0.1);
}

.filter-container {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.filter-select {
    padding: 10px 15px;
    border: 2px solid #f0f0f0;
    border-radius: 20px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
}

.filter-select:hover {
    border-color: var(--primary);
}

/* Font Grid */
.font-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 0 20px 0;
    transition: grid-template-columns 0.3s ease;
}

.font-grid.cols-1 {
    grid-template-columns: 1fr;
}

.font-grid.cols-2 {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.font-grid.cols-3 {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.font-grid.cols-4 {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    max-width: 400px;
    margin: 0 auto;
}

.empty-icon {
    font-size: 80px;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.empty-state h2 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.empty-state p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-title {
        font-size: 20px;
    }
    
    .title-icon {
        font-size: 24px;
    }
    
    .add-font-btn span {
        display: none;
    }
    
    .add-font-btn {
        padding: 12px;
        border-radius: 50%;
        width: 48px;
        height: 48px;
        justify-content: center;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-container {
        width: 100%;
    }
    
    .filter-container {
        justify-content: space-between;
    }
    
    .font-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .font-grid.cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .font-grid.cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .font-grid.cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .main-app {
        padding-left: calc(var(--safe-area-left) + 15px);
        padding-right: calc(var(--safe-area-right) + 15px);
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: 18px;
    }
    
    .empty-icon {
        font-size: 60px;
    }
    
    .empty-state h2 {
        font-size: 20px;
    }
    
    .empty-state p {
        font-size: 14px;
    }
}

/* Smooth Transitions */
* {
    transition: background-color 0.3s ease, color 0.3s ease;
}

button {
    -webkit-tap-highlight-color: transparent;
}