/* Instagram Birthday Directory - Instagram-like Styling */

/* CSS Variables for Instagram Theme */
:root {
    --instagram-primary: #E4405F;
    --instagram-secondary: #F56040;
    --instagram-accent: #FCAF45;
    --instagram-purple: #833AB4;
    --instagram-blue: #405DE6;
    --instagram-pink: #FD1D1D;
    --instagram-gradient: linear-gradient(45deg, #405DE6, #5851DB, #833AB4, #C13584, #E1306C, #FD1D1D, #F56040, #FCAF45);
    --instagram-gradient-subtle: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-card: #ffffff;
    --bg-input: #fafafa;
    
    /* Text Colors */
    --text-primary: #262626;
    --text-secondary: #8e8e8e;
    --text-muted: #c7c7c7;
    
    /* Border Colors */
    --border-light: #dbdbdb;
    --border-medium: #c7c7c7;
    
    /* Shadows */
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.15);
    
    /* Success/Error Colors */
    --success: #00d084;
    --error: #ed4956;
    --warning: #ffcc00;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.app-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-light);
}

.app-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo i {
    font-size: 2rem;
    background: var(--instagram-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1,
.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-stats {
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-light);
}

.stat i {
    color: var(--instagram-primary);
    font-size: 1.1rem;
}

.stat span {
    font-weight: 600;
    color: var(--text-primary);
}

.stat small {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Main Content */
.main-content {
    padding: 40px 0;
    min-height: calc(100vh - 200px);
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 40px;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--instagram-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

.hero-icon i {
    font-size: 2rem;
    color: white;
}

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

.hero-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--instagram-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Search Section */
.search-section {
    margin-bottom: 60px;
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
}

.search-input-wrapper {
    position: relative;
    background: var(--bg-card);
    border: 2px solid var(--border-light);
    border-radius: 16px;
    padding: 4px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-input-wrapper:focus-within {
    border-color: var(--instagram-primary);
    box-shadow: 0 0 0 3px rgba(228, 64, 95, 0.1);
}

.search-icon {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-left: 16px;
}

#username-input {
    flex: 1;
    border: none;
    outline: none;
    padding: 16px 8px;
    font-size: 1rem;
    background: transparent;
    color: var(--text-primary);
}

#username-input::placeholder {
    color: var(--text-secondary);
}

.search-btn {
    background: var(--instagram-gradient);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

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

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

.database-note {
    margin-top: 20px;
    padding: 16px;
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    border: 1px solid #ffeaa7;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: center;
    justify-content: center;
}

.database-note i {
    color: #856404;
    font-size: 1.1rem;
}

.database-note p {
    margin: 0;
    color: #856404;
    font-size: 0.95rem;
}

.database-note strong {
    color: var(--instagram-primary);
    font-weight: 600;
}

/* Results Section */
.results-section {
    margin-bottom: 60px;
}

.search-results {
    max-width: 600px;
    margin: 0 auto;
}

.result-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-light);
    animation: slideUp 0.5s ease;
}

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

.result-success {
    background: linear-gradient(135deg, #1e1e1e);
    border-color: var(--success);
    border-width: 2px;
}

.result-error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    border-color: var(--error);
    border-width: 2px;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.result-avatar {
    width: 60px;
    height: 60px;
    background: var(--instagram-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

.result-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.result-info .username {
    color: var(--instagram-primary);
    font-weight: 500;
}

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

.birthday-info {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.countdown {
    background: var(--instagram-gradient);
    color: white;
    padding: 16px 24px;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    display: inline-block;
    animation: pulse 2s infinite;
}

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

.error-message {
    text-align: center;
    color: var(--error);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.error-message i {
    font-size: 1.3rem;
}

/* Section Titles */
.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}

.section-title i {
    color: var(--instagram-primary);
}

/* Birthdays Grid */
.birthdays-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.birthday-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    cursor: pointer;
}

.birthday-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.birthday-card.today {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    border-color: var(--warning);
    border-width: 2px;
}

.birthday-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.birthday-avatar {
    width: 48px;
    height: 48px;
    background: var(--instagram-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
}

.birthday-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.birthday-info .username {
    color: var(--instagram-primary);
    font-size: 0.9rem;
}

.birthday-date {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.birthday-countdown {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    color: var(--border-medium);
}

.empty-state h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Footer */
.app-footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-light);
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
    margin-bottom: 20px;
}

.footer-info p {
    color: var(--text-secondary);
    margin-top: 8px;
}

.footer-links a {
    color: var(--instagram-primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--instagram-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Loading Spinner */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.spinner {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    animation: spin 1s linear infinite;
}

.spinner i {
    font-size: 3rem;
    background: var(--instagram-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-spinner p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .search-input-wrapper {
        flex-direction: column;
        gap: 12px;
        padding: 12px;
    }
    
    #username-input {
        padding: 12px 16px;
        text-align: center;
    }
    
    .search-btn {
        width: 100%;
        justify-content: center;
        padding: 16px 24px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }
    
    .birthdays-grid {
        grid-template-columns: 1fr;
    }
    
    .app-header .container {
        flex-direction: column;
        gap: 16px;
    }
    
    .database-note {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .hero-icon {
        width: 60px;
        height: 60px;
    }
    
    .hero-icon i {
        font-size: 1.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .result-header {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .birthday-card-header {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #121212;
        --bg-card: #1e1e1e;
        --bg-input: #262626;
        --text-primary: #ffffff;
        --text-secondary: #a8a8a8;
        --text-muted: #737373;
        --border-light: #363636;
        --border-medium: #525252;
    }
}