/* ------------------------------
   Styles généraux
---------------------------------*/

:root {
    --color-bg: #0b1220;
    --color-bg-light: #f5f7fb;
    --color-primary: #2563eb;
    --color-primary-soft: #dbeafe;
    --color-accent: #22c55e;
    --color-text: #0f172a;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --radius-card: 16px;
    --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.15);
    --transition: 0.25s ease;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-main);
    color: var(--color-text);
    background-color: #ffffff;
    line-height: 1.6;
}

/* Containers & sections */

.container {
    width: min(1120px, 100% - 2.5rem);
    margin: 0 auto;
}

.section {
    padding: 5rem 0;
}

.section-light {
    background-color: var(--color-bg-light);
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
}

.section-intro {
    max-width: 700px;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
}

/* ------------------------------
   Header & Navigation
---------------------------------*/

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(11, 18, 32, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.3);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #e5e7eb;
    font-weight: 600;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: radial-gradient(circle at 30% 30%, #60a5fa, #1d4ed8);
    color: white;
    font-weight: 700;
}

.logo-text {
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.main-nav ul {
    display: flex;
    gap: 1.75rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: #cbd5f5;
    text-decoration: none;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 0.15rem;
    transition: color var(--transition);
}

.main-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.15rem;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--color-primary), var(--color-accent));
    transition: width var(--transition);
}

.main-nav a:hover {
    color: #ffffff;
}

.main-nav a:hover::after {
    width: 100%;
}

/* Burger menu */

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.6);
    background: transparent;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: #e5e7eb;
    border-radius: 999px;
}

/* ------------------------------
   Hero
---------------------------------*/

.hero {
    background: radial-gradient(circle at top left, #1d4ed8, #020617);
    color: white;
    padding: 4.5rem 0 4rem;
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.2rem, 3vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

.hero h1 span {
    font-weight: 400;
    font-size: 0.9em;
    color: #bfdbfe;
}

.hero p {
    color: #e5e7eb;
    max-width: 620px;
}

.hero-buttons {
    margin-top: 1.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Hero visuels */

.hero-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hero-card {
    background: rgba(15, 23, 42, 0.85);
    border-radius: var(--radius-card);
    padding: 1.5rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(148, 163, 184, 0.4);
}

.hero-card h2 {
    margin: 0 0 0.25rem;
    font-size: 1.1rem;
}

.hero-card p {
    margin: 0;
    color: #cbd5f5;
    font-size: 0.95rem;
}

/* ------------------------------
   Boutons
---------------------------------*/

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.4rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    box-shadow: 0 18px 35px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 45px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
    background: rgba(15, 23, 42, 0.75);
    color: #e5e7eb;
    border-color: rgba(148, 163, 184, 0.4);
}

.btn-secondary:hover {
    background: rgba(15, 23, 42, 0.95);
}

.btn-outline {
    background: white;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary-soft);
}

/* ------------------------------
   Cards & Layouts
---------------------------------*/

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.card {
    background: white;
    border-radius: var(--radius-card);
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.04);
}

.card h3 {
    margin-top: 0;
}

.card p {
    color: var(--color-text-light);
}

.card ul {
    padding-left: 1.1rem;
    margin: 0.75rem 0 0;
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* Two columns layout */

.two-cols {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: flex-start;
}

/* Checklist */

.checklist {
    list-style: none;
    padding: 0;
    margin: 1rem 0 1.25rem;
}

.checklist li {
    position: relative;
    padding-left: 1.4rem;
    margin-bottom: 0.4rem;
    color: var(--color-text-light);
}

.checklist li::before {
    content: "✔";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent);
    font-size: 0.85rem;
}

/* Highlight box */

.highlight-box {
    background: white;
    border-radius: var(--radius-card);
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.04);
}

.highlight-box h3 {
    margin-top: 0;
    color: var(--color-primary);
}

.highlight-box ul {
    padding-left: 1.1rem;
    margin: 0.5rem 0 0.75rem;
}

.highlight-box .note {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Mini cards stack */

.cards-stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mini-card {
    background: white;
    border-radius: var(--radius-card);
    padding: 1rem 1.25rem;
    border: 1px solid var(--color-border);
}

/* Pricing */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.75rem;
    margin-top: 2.5rem;
}

.pricing-card {
    background: white;
    border-radius: var(--radius-card);
    padding: 1.8rem 1.5rem;
    border: 1px solid var(--color-border);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06);
    position: relative;
}

.pricing-featured {
    border-color: var(--color-primary);
    transform: translateY(-6px);
}

.pricing-card .tag {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    font-size: 0.75rem;
    padding: 0.15rem 0.7rem;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.price {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 0.5rem 0 0.75rem;
}

.pricing-card ul {
    padding-left: 1.1rem;
    margin: 0 0 1.25rem;
    color: var(--color-text-light);
}

/* Contact */

.contact-infos {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    color: var(--color-text-light);
}

.contact-infos li + li {
    margin-top: 0.2rem;
}

/* Formulaire */

.contact-form {
    background: white;
    border-radius: var(--radius-card);
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.04);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.92rem;
    margin-bottom: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    font: inherit;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: 2px solid var(--color-primary-soft);
    border-color: var(--color-primary);
}

.form-feedback {
    font-size: 0.9rem;
    margin-top: 0.75rem;
}

/* Footer */

.site-footer {
    background: #020617;
    color: #94a3b8;
    padding: 1.75rem 0;
    font-size: 0.9rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a {
    color: #cbd5f5;
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* ------------------------------
   Responsive
---------------------------------*/

@media (max-width: 960px) {
    .hero-inner,
    .two-cols,
    .pricing-grid,
    .cards-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .pricing-featured {
        transform: none;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 64px;
    }

    .main-nav {
        position: absolute;
        inset: 64px 0 auto 0;
        background: rgba(15, 23, 42, 0.98);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.25s ease;
    }

    .main-nav.open {
        max-height: 260px;
    }

    .main-nav ul {
        flex-direction: column;
        padding: 0.8rem 1.4rem 1.2rem;
        gap: 0.75rem;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .cards-grid {
        gap: 1.25rem;
    }

    .hero {
        padding-top: 4.25rem;
    }
}

@media (max-width: 480px) {
    .hero-inner {
        gap: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}