/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Couleurs Tyva Events selon la charte graphique */
    --neutral-01: #EDF7F7;
    --neutral-02: #FFFFFF;
    --tertiary-01: #36CC76;
    --tertiary-02: #34116B;
    --secondary: #023C40;
    --accent: #FCDE60;
    
    /* Typographies */
    --font-primary: 'Sora', sans-serif;
    --font-secondary: 'Satoshi', sans-serif;
    
    /* Espacements */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Rayons de bordure */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Ombres */
    --shadow-sm: 0 2px 8px rgba(2, 60, 64, 0.1);
    --shadow-md: 0 4px 16px rgba(2, 60, 64, 0.15);
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--secondary);
    background: linear-gradient(135deg, var(--tertiary-02) 0%, var(--secondary) 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.logo {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

/* Section principale */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) 0;
}

.hero-section {
    text-align: center;
    width: 100%;
}

.hero-title {
    margin-bottom: var(--spacing-md);
}

.title-main {
    display: inline;
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--neutral-02);
    line-height: 1.1;
}

.title-sub {
    display: inline;
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 500;
    color: var(--tertiary-01);
    line-height: 1.1;
    margin-left: var(--spacing-sm);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--neutral-01);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* Formulaire de notification */
.notification-form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: var(--spacing-xl);
    max-width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.input-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.input-group input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: var(--neutral-02);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.input-group input:focus {
    outline: none;
    border-color: var(--tertiary-01);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(54, 204, 118, 0.2);
}

.btn-notify {
    background: linear-gradient(135deg, var(--tertiary-01) 0%, var(--tertiary-02) 100%);
    color: var(--neutral-02);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(54, 204, 118, 0.3);
}

.btn-notify:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(54, 204, 118, 0.4);
    background: linear-gradient(135deg, #2bb865 0%, #2a0f5a 100%);
}

/* Compteur de temps */
.countdown-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto;
}

.countdown-item {
    background: var(--neutral-02);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.3s ease;
}

.countdown-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.countdown-number {
    display: block;
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    color: var(--tertiary-02);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.countdown-label {
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Footer */
.footer {
    background: transparent;
    color: var(--neutral-01);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--neutral-01);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    opacity: 0.7;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.footer-links a:hover {
    color: var(--accent);
    opacity: 1;
    background: rgba(255, 255, 255, 0.05);
}

.footer-bottom {
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header {
        padding: var(--spacing-md) 0;
    }
    
    .logo {
        height: 40px;
    }
    
    .main-content {
        padding: var(--spacing-lg) 0;
    }
    
    .notification-form {
        padding: var(--spacing-md);
        max-width: 400px;
    }
    
    .input-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .input-group input {
        min-width: auto;
    }
    
    .btn-notify {
        width: 100%;
    }
    
    .countdown-container {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
        max-width: 300px;
    }
    
    .countdown-item {
        padding: var(--spacing-sm);
    }
    
    .countdown-number {
        font-size: 1.5rem;
    }
    
    .footer-links {
        gap: var(--spacing-md);
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .countdown-container {
        grid-template-columns: repeat(2, 1fr);
        max-width: 250px;
    }
    
    .title-main,
    .title-sub {
        font-size: 2rem;
        display: block;
        margin-left: 0;
    }
    
    .title-sub {
        margin-top: var(--spacing-xs);
    }
    
    .notification-form {
        max-width: 350px;
    }
    
    .hero-description {
        font-size: 1rem;
    }
}

/* États de focus pour l'accessibilité */
.btn-notify:focus,
.input-group input:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}