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

:root {
    --navy: #0f172a;
    --navy-deep: #080d1a;
    --ink-soft: #5b6577;
    --cream: #faf7f2;
    --cream-deep: #f1ebe0;
    --orange: #e65c00;
    --orange-light: #ff8a3d;
    --orange-wash: #fdece0;
}

html { scroll-behavior: smooth; }

body {
    background: var(--cream);
    color: var(--navy);
    font-family: 'Lato', sans-serif;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }

section { position: relative; }

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 28px;
}

.eyebrow {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: clamp(14px, 1.6vw, 17px);
    line-height: 1.3;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--orange);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.01em;
    padding: 15px 28px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn-primary {
    background: var(--navy);
    color: #fff;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(15, 23, 42, 0.22); }

/* ============ Header ============ */

header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(250, 247, 242, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    padding-bottom: 18px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.brand img { height: 30px; width: auto; }

.brand span {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.01em;
    color: var(--navy);
}

nav.main-nav {
    display: flex;
    align-items: center;
    gap: 36px;
}

nav.main-nav a {
    font-family: 'Lato', sans-serif;
    font-size: 14px;
    color: var(--ink-soft);
    text-decoration: none;
    transition: color 0.2s;
}

nav.main-nav a:hover { color: var(--navy); }
nav.main-nav a.btn-primary { color: #fff; }
nav.main-nav a.btn-primary:hover { color: #fff; }

.nav-links { display: flex; gap: 32px; }

@media (max-width: 720px) {
    .nav-links { display: none; }
}

/* ============ Hero ============ */

.hero {
    padding: 90px 0 100px;
    overflow: hidden;
}

.hero .wrap {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(38px, 5.2vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.01em;
    margin: 18px 0 22px;
    color: var(--navy);
}

.hero h1 em {
    font-style: normal;
    color: var(--orange);
}

.hero .lead {
    font-size: 18px;
    line-height: 1.65;
    color: var(--ink-soft);
    max-width: 480px;
    margin-bottom: 34px;
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 40px;
}

.hero-blob {
    position: absolute;
    width: 92%;
    aspect-ratio: 1;
    background: radial-gradient(circle at 35% 30%, var(--orange-wash) 0%, var(--cream-deep) 65%, transparent 100%);
    border-radius: 44% 56% 62% 38% / 46% 40% 60% 54%;
    filter: blur(0.5px);
    z-index: 0;
}

.hero-logo {
    position: relative;
    z-index: 1;
    width: 66%;
    filter: drop-shadow(0 30px 50px rgba(230, 92, 0, 0.16));
    animation: floatSlow 7s ease-in-out infinite;
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-16px) rotate(-2deg); }
}

.trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin-top: 26px;
}

.trust-row span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Lato', sans-serif;
    font-size: 13px;
    color: var(--ink-soft);
}

.trust-row span::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--orange);
}

/* ============ Formulaire liste d'attente (réutilisé 2x) ============ */

.cta-form {
    display: flex;
    gap: 10px;
    background: #ffffff;
    padding: 7px;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.1);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    max-width: 440px;
}

.cta-form input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    padding: 12px 18px;
    font-family: 'Lato', sans-serif;
    font-size: 15px;
    color: var(--navy);
    min-width: 0;
}

.cta-form input::placeholder { color: #9aa4b8; }

/* Honeypot anti-spam : champ invisible que seuls les bots remplissent */
.hp { display: none; }

.cta-form button {
    background: linear-gradient(135deg, var(--orange) 0%, var(--orange-light) 100%);
    color: #fff;
    border: none;
    padding: 13px 24px;
    border-radius: 999px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    box-shadow: 0 8px 20px rgba(230, 92, 0, 0.28);
}

.cta-form button:hover { transform: translateY(-1px); }
.cta-form button:disabled { opacity: 0.6; cursor: default; transform: none; }

.cta-success {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #ffffff;
    border: 1px solid rgba(230, 92, 0, 0.3);
    padding: 15px 26px;
    border-radius: 999px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    color: var(--navy);
    font-family: 'Lato', sans-serif;
    font-size: 14.5px;
}

.cta-success strong { color: var(--orange); }

.cta-error {
    margin-top: 10px;
    color: var(--orange);
    font-family: 'Lato', sans-serif;
    font-size: 13px;
}

@media (max-width: 480px) {
    .cta-form { flex-direction: column; border-radius: 22px; max-width: 100%; }
    .cta-form button { width: 100%; }
}

/* ============ Intro produit ============ */

.intro {
    padding: 60px 0 120px;
}

.intro .wrap {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 64px;
    align-items: center;
}

.intro h2 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(26px, 3vw, 34px);
    line-height: 1.25;
    margin: 14px 0 18px;
    color: var(--navy);
}

.intro p {
    font-size: 16px;
    line-height: 1.75;
    color: var(--ink-soft);
    margin-bottom: 14px;
}

/* Illustration abstraite de l'interface — pas une vraie capture d'écran */
.app-mock {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: 28px;
    padding: 24px;
    box-shadow: 0 30px 70px rgba(15, 23, 42, 0.08);
}

.app-mock-topbar { display: flex; gap: 6px; margin-bottom: 20px; }
.app-mock-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(15, 23, 42, 0.12); }

.app-mock-body { display: flex; gap: 16px; }

.app-mock-sidebar { display: flex; flex-direction: column; gap: 10px; }
.app-mock-channel { width: 36px; height: 36px; border-radius: 12px; background: var(--cream-deep); }
.app-mock-channel.active { background: linear-gradient(135deg, var(--orange), var(--orange-light)); }

.app-mock-chat { flex: 1; display: flex; flex-direction: column; gap: 10px; }

.bubble {
    max-width: 78%;
    padding: 11px 15px;
    border-radius: 16px;
    font-family: 'Lato', sans-serif;
    font-size: 13.5px;
    line-height: 1.45;
}

.bubble.received { align-self: flex-start; background: var(--cream-deep); color: var(--navy); border-bottom-left-radius: 4px; }
.bubble.sent { align-self: flex-end; background: linear-gradient(135deg, var(--orange), var(--orange-light)); color: #fff; border-bottom-right-radius: 4px; }

.encrypted-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    padding: 7px 14px;
    border-radius: 999px;
    background: var(--orange-wash);
    color: #b5480a;
    font-size: 11px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.zk-note {
    margin-top: 20px;
    padding: 16px 20px;
    border-left: 3px solid var(--orange);
    background: rgba(230, 92, 0, 0.05);
    border-radius: 0 14px 14px 0;
    font-size: 13.5px;
    line-height: 1.65;
    color: var(--ink-soft);
}

.zk-note strong {
    color: var(--navy);
}

/* ============ Fonctionnalités ============ */

.features {
    padding: 100px 0;
    background: var(--cream-deep);
}

.section-head {
    max-width: 560px;
    margin: 0 auto 56px;
    text-align: center;
}

.section-head h2 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(28px, 3.4vw, 38px);
    line-height: 1.2;
    margin-top: 14px;
    color: var(--navy);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-card {
    background: #ffffff;
    border-radius: 22px;
    padding: 30px 24px;
    border: 1px solid rgba(15, 23, 42, 0.05);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.08);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: var(--orange-wash);
    color: var(--orange);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
}

.feature-icon svg { width: 24px; height: 24px; }

.feature-tag {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--orange);
    margin-bottom: 6px;
}

.feature-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--navy);
}

.feature-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--ink-soft);
}

/* ============ Preuve / chiffres ============ */

.proof { padding: 110px 0; }

.proof-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}

.proof-num {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(34px, 4.2vw, 48px);
    color: var(--navy);
}

.proof-num span { color: var(--orange); }

.proof-label {
    margin-top: 10px;
    font-size: 14px;
    color: var(--ink-soft);
    max-width: 220px;
    margin-left: auto;
    margin-right: auto;
}

/* ============ CTA final ============ */

.final-cta {
    padding: 90px 0 120px;
    text-align: center;
}

.final-cta h2 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(28px, 3.6vw, 40px);
    margin-bottom: 14px;
    color: var(--navy);
}

.final-cta-lead {
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink-soft);
    max-width: 480px;
    margin: 0 auto 30px;
}

.final-cta .cta-form { margin: 0 auto; }
.final-cta .cta-success { margin: 0 auto; }

/* ============ Footer sombre ============ */

footer.site-footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
    padding: 56px 0 32px;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 17px;
    color: #fff;
}

.footer-brand img { height: 24px; }

.footer-tag {
    margin-top: 10px;
    font-size: 13px;
    max-width: 260px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 26px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13.5px;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover { color: var(--orange-light); }

.footer-bottom {
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 1000px) {
    .feature-grid, .proof-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
    .hero .wrap, .intro .wrap { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .hero .eyebrow { display: flex; align-items: center; gap: 8px; }
    .hero .eyebrow::before {
        content: '';
        width: 20px;
        height: 20px;
        flex-shrink: 0;
        background: url('../images/logo.png') center / contain no-repeat;
    }
}

@media (max-width: 600px) {
    .wrap { padding: 0 20px; }
    .hero { padding: 56px 0 60px; }
    .intro { padding: 36px 0 64px; }
    .features { padding: 60px 0; }
    .proof { padding: 64px 0; }
    .final-cta { padding: 60px 0 76px; }
    footer.site-footer { padding: 40px 0 24px; }
    .section-head { margin-bottom: 36px; }
    .hero .lead { max-width: 100%; }
}

@media (max-width: 560px) {
    .feature-grid, .proof-grid { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
    header .wrap { padding-top: 14px; padding-bottom: 14px; }
    .brand img { height: 26px; }
    .brand span { font-size: 16px; }
    nav.main-nav { gap: 12px; }
    nav.main-nav a.btn-primary { padding: 11px 18px; font-size: 13px; }
    .hero h1 { font-size: 32px; }
    .hero .lead { font-size: 15.5px; }
    .trust-row { gap: 8px 16px; }
    .trust-row span { font-size: 12.5px; }
    .app-mock { padding: 16px; }
    .app-mock-channel { width: 28px; height: 28px; border-radius: 9px; }
    .app-mock-body { gap: 10px; }
    .bubble { font-size: 12.5px; padding: 9px 12px; }
    .feature-card { padding: 24px 20px; }
    .proof-grid { gap: 26px 20px; }
    .proof-label { font-size: 13px; }
}