/* ============================================
   Variables CSS
   ============================================ */
:root {
    --color-black: #000000;
    --color-white: #ffffff;
    --color-accent: #3370ff;
    --color-accent-hover: #2a5ce6;
    --color-accent-light: rgba(51, 112, 255, 0.1);
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-lighter: #999999;
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-bg-dark: #0a0a0a;
    --color-success: #10b981;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-heading: 'sainte-croix', serif;
    --font-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* ============================================
   @font-face - Police Sainte-Croix
   ============================================ */
@font-face {
    font-family: 'sainte-croix';
    src: url('police/SainteCroix-Regular.woff2') format('woff2'),
         url('police/SainteCroix-Regular.woff') format('woff');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'sainte-croix';
    src: url('police/SainteCroix-Bold.woff2') format('woff2'),
         url('police/SainteCroix-Bold.woff') format('woff');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'sainte-croix';
    src: url('police/SainteCroix-Italic.woff2') format('woff2'),
         url('police/SainteCroix-Italic.woff') format('woff');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'sainte-croix';
    src: url('police/SainteCroix-BoldItalic.woff2') format('woff2'),
         url('police/SainteCroix-BoldItalic.woff') format('woff');
    font-weight: 700;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'sainte-croix';
    src: url('police/SainteCroix-Poster.woff2') format('woff2'),
         url('police/SainteCroix-Poster.woff') format('woff');
    font-weight: 900;
    font-style: normal;
    font-display: swap;
}

/* ============================================
   Reset & Base
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    background-attachment: fixed;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Header
   ============================================ */
.site-header {
    background-color: var(--color-black);
    border-bottom: 4px solid var(--color-accent);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.header-logo {
    display: flex;
    align-items: center;
}

.header-logo img {
    max-height: 50px;
    width: auto;
    display: block;
    transition: transform var(--transition-base);
}

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

/* ============================================
   Layout Principal
   ============================================ */
.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    flex: 1;
    padding: var(--spacing-lg) 0;
}

/* ============================================
   Section Contenu (Gauche)
   ============================================ */
.content-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.main-title {
    font-family: var(--font-heading);
    font-size: clamp(2.25rem, 5.5vw, 4rem);
    font-weight: 400;
    line-height: 1.15;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    max-width: 95%;
}

.description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.7;
    color: var(--color-text-light);
    max-width: 90%;
}

/* ============================================
   Bloc Vidéo
   ============================================ */
.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* Ratio 16:9 */
    background-color: var(--color-black);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-top: var(--spacing-md);
}

.campaign-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.video-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--radius-lg);
}

/* ============================================
   Section Formulaire (Droite)
   ============================================ */
.form-section {
    position: sticky;
    top: var(--spacing-md);
    align-self: start;
}

.form-wrapper {
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.form-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, #5a8fff 100%);
}

.form-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-accent) 0%, #5a8fff 100%);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.form-title {
    font-family: var(--font-heading);
    font-size: clamp(1.875rem, 3.5vw, 2.5rem);
    font-weight: 400;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.form-description {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* ============================================
   Formulaire Newsletter
   ============================================ */
.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    display: block;
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-white);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
}

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(51, 112, 255, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-light);
    opacity: 0.6;
}

.form-help {
    font-size: 0.8125rem;
    color: var(--color-text-light);
    line-height: 1.4;
}

.discount-banner {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-accent-light) 0%, rgba(90, 143, 255, 0.1) 100%);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-accent);
    margin-bottom: var(--spacing-lg);
    transition: transform var(--transition-base);
}

.discount-banner:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.discount-icon {
    flex-shrink: 0;
    color: var(--color-accent);
    width: 32px;
    height: 32px;
}

.discount-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.discount-content strong {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-black);
    font-family: var(--font-heading);
}

.discount-content span {
    font-size: 0.875rem;
    color: var(--color-text);
}

.discount-content small {
    font-size: 0.75rem;
    color: var(--color-text-light);
    font-style: italic;
}

.cta-button {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.0625rem;
    font-weight: 600;
    font-family: var(--font-body);
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-accent) 0%, #5a8fff 100%);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    text-align: center;
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

.cta-button::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;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    background: linear-gradient(135deg, var(--color-accent-hover) 0%, #4d7fff 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.cta-button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.cta-button:focus {
    outline: 3px solid var(--color-accent-light);
    outline-offset: 2px;
}

.cta-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.button-text {
    position: relative;
    z-index: 1;
    transition: opacity var(--transition-base);
}

.button-loader {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.form-message {
    display: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    text-align: center;
}

.form-message--success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-message--error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ============================================
   Notification de succès
   ============================================ */
.success-notification {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: var(--spacing-md);
}

.success-notification.show {
    opacity: 1;
    visibility: visible;
}

.success-notification-content {
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 100%;
    padding: var(--spacing-xl);
    position: relative;
    border: 2px solid var(--color-accent);
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
}

.success-notification.show .success-notification-content {
    transform: scale(1) translateY(0);
}

.success-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    font-weight: bold;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-md);
}

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

.success-title {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--color-black);
    margin: 0 0 var(--spacing-md) 0;
    letter-spacing: -0.01em;
}

.success-details {
    text-align: left;
    margin-top: var(--spacing-lg);
}

.success-details p {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 1rem;
    color: var(--color-text);
    line-height: 1.6;
}

.success-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.success-list li {
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-accent-light) 0%, rgba(90, 143, 255, 0.1) 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-accent);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text);
}

.success-list li strong {
    color: var(--color-black);
    font-weight: 600;
}

.success-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-style: italic;
}

.success-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    line-height: 1;
}

.success-close:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: rotate(90deg);
}

.success-close:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    margin-top: var(--spacing-xxl);
    padding: 0;
    background: var(--color-bg-dark);
    color: var(--color-white);
    border-top: 4px solid var(--color-accent);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo {
    margin-bottom: var(--spacing-sm);
}

.footer-logo img {
    max-width: 120px;
    height: auto;
    display: block;
    filter: drop-shadow(0 4px 8px rgba(51, 112, 255, 0.3));
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-white);
    margin: 0;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin: 0;
}

.footer-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-white);
    margin: 0 0 var(--spacing-xs) 0;
    letter-spacing: -0.01em;
}

.footer-address {
    font-style: normal;
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin: 0;
}

.footer-address p {
    margin: 0;
}

.footer-hours {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-hours li {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.footer-contact a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) var(--spacing-md);
    text-align: center;
    background: rgba(0, 0, 0, 0.3);
}

.footer-legal {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    margin: 0;
}

/* ============================================
   Responsive - Mobile
   ============================================ */
@media (max-width: 768px) {
    .site-header {
        padding: var(--spacing-sm) 0;
    }
    
    .header-container {
        padding: 0 var(--spacing-sm);
    }
    
    .header-logo img {
        max-height: 40px;
    }
    
    .success-notification {
        padding: var(--spacing-sm);
    }
    
    .success-notification-content {
        padding: var(--spacing-lg);
        max-width: 100%;
    }
    
    .success-icon {
        width: 56px;
        height: 56px;
        font-size: 1.75rem;
    }
    
    .success-list li {
        font-size: 0.875rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .container {
        padding: var(--spacing-sm);
    }
    
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-md) 0;
    }
    
    .form-section {
        position: static;
    }
    
    .form-wrapper {
        padding: var(--spacing-lg);
    }
    
    .description {
        max-width: 100%;
    }
    
    .main-title {
        margin-bottom: var(--spacing-md);
    }
    
    .video-container {
        margin-top: var(--spacing-sm);
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .footer-info {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-xs);
    }
    
    .form-wrapper {
        padding: var(--spacing-md);
    }
    
    .content-section {
        gap: var(--spacing-md);
    }
}

/* ============================================
   Accessibilité - Focus visible
   ============================================ */
*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .form-section,
    .video-container {
        display: none;
    }
}