:root {
    --bg-color: #0F172A; /* Slate 900 */
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --accent-color: #3B82F6; /* Blue 500 */
    --accent-hover: #2563EB;
    --card-bg: #1E293B; /* Slate 800 */
    --card-hover: #334155;
    --border-color: #334155;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-family);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(15, 23, 42, 0.9);
    position: sticky;
    top: 0;
    backdrop-filter: blur(8px);
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(90deg, #F8FAFC, #94A3B8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lang-switcher a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.2s;
}

.lang-switcher a:hover,
.lang-switcher a.active {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 6rem 1rem 4rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.highlight {
    color: var(--accent-color);
    background: linear-gradient(90deg, #3B82F6, #8B5CF6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

/* Boutons CTA */
.cta-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    text-align: center;
}

.full-width {
    width: 100%;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
    border: none;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--card-hover);
    transform: translateY(-2px);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.feature-icon {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.feature-card h3 {
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Profiles Section */
.profiles-section {
    padding: 4rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.profiles-section .section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.profiles-section .section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    font-size: 1.1rem;
}

.profile-block {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    padding: 3rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.profile-block.reverse {
    flex-direction: row-reverse;
}

.profile-info {
    flex: 1 1 400px;
}

.profile-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.profile-info > p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.use-cases {
    margin-bottom: 2rem;
}

.use-cases h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.use-cases ul {
    list-style: none;
    padding: 0;
}

.use-cases li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.use-cases svg {
    color: var(--accent-color);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.profile-actions {
    margin-top: 2rem;
}

.profile-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.link-action {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.link-action:hover {
    text-decoration: underline;
}

.install-command {
    background: #000;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    overflow-x: auto;
}

.install-command code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    color: #A5B4FC;
    font-size: 0.9rem;
    white-space: nowrap;
}

.profile-visual {
    flex: 1 1 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.mt-2 {
    margin-top: 1.5rem;
}

.platform-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.badge {
    background-color: var(--bg-color);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.code-block {
    background: #000;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.code-header {
    background: var(--bg-color);
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.code-block pre {
    padding: 1rem;
    overflow-x: auto;
}

.code-block code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    color: #A5B4FC;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .profile-block {
        padding: 2rem 1.5rem;
    }
}


/* Footer */

footer {
    border-top: 1px solid var(--border-color);
    padding: 2rem 5%;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .platform-card {
        padding: 1.5rem;
    }
}

/* Wordmark : « er » en exposant avec la proof line (identité logo) */
.logo sup {
    font-size: 0.55em;
    font-weight: 600;
    -webkit-text-fill-color: var(--text-primary);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 1px;
    margin-left: 1px;
}

/* Exemple héros : adresse résolue (preuve on-chain) */
.hero-example {
    margin: 2.5rem auto 0;
    max-width: 620px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    text-align: left;
}

.example-address {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    color: var(--text-primary);
    font-size: 0.95rem;
    word-break: break-all;
}

.example-proof-line {
    height: 2px;
    width: 42%;
    margin: 0.8rem 0 0.7rem;
    border-radius: 2px;
    background: linear-gradient(90deg, #3B82F6, #8B5CF6);
}

.example-result {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.example-result strong {
    color: var(--accent-color);
}

/* Note sous le bloc terminal (Windows + guide MCP) */
.platform-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    margin-bottom: 0 !important;
}

.platform-note a {
    color: var(--accent-color);
    text-decoration: none;
}

.platform-note a:hover {
    text-decoration: underline;
}

/* Accessibilité */
a:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
    border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
    }
    .btn-primary:hover,
    .btn-secondary:hover,
    .feature-card:hover {
        transform: none;
    }
}