/* ==========================================================================
   SDML Studio — Landing page
   Palette unifiée avec l'écran de connexion DesignPro
   --ink       #12265A  bleu nuit
   --blue      #165DC2  bleu principal
   --graphite  #17346F  panneaux
   --paper     #FFFFFF  blanc
   --safelight #F47B20  orange d'accent
   --slate     #C8D5EE  texte secondaire
   ========================================================================== */

:root {
    --ink: #12265A;
    --blue: #165DC2;
    --graphite: #17346F;
    --paper: #FFFFFF;
    --safelight: #F47B20;
    --slate: #C8D5EE;
    --ink-text: #162033;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--ink);
    color: var(--paper);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .l-brand, .l-eyebrow, .l-feature-tag, .l-frame-num, .l-btn, .l-link-btn, .l-topnav a {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
}

a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

/* ---------- Topbar ---------- */
.l-topbar {
    display: flex; align-items: center; gap: 2rem;
    padding: 1.5rem clamp(1.25rem, 5vw, 4rem);
    max-width: 1400px; margin: 0 auto;
}
.l-brand { font-weight: 700; font-size: 1.15rem; letter-spacing: 0.02em; color: var(--paper); }
.l-brand span { color: var(--safelight); }
.l-topnav { display: flex; gap: 1.75rem; margin-right: auto; }
.l-topnav a { font-size: 0.9rem; color: var(--slate); transition: color 0.15s; }
.l-topnav a:hover { color: var(--paper); }
.l-topbar-actions { display: flex; align-items: center; gap: 1rem; }
.l-link-btn { font-size: 0.9rem; color: var(--paper); }
.l-link-btn:hover { color: var(--safelight); }

.l-btn {
    display: inline-block; padding: 0.65rem 1.3rem; border-radius: 4px; font-weight: 600;
    font-size: 0.92rem; letter-spacing: 0.01em; transition: transform 0.15s, box-shadow 0.15s;
}
.l-btn-accent { background: var(--safelight); color: #fff; }
.l-btn-accent:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(244,123,32,0.32); }
.l-btn-large { padding: 0.9rem 1.75rem; font-size: 1rem; }
.l-btn-ghost { font-size: 0.92rem; color: var(--slate); border-bottom: 1px solid transparent; padding-bottom: 2px; }
.l-btn-ghost:hover { color: var(--paper); border-color: var(--slate); }

/* ---------- Hero ---------- */
.l-hero {
    display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 5rem);
    align-items: center; max-width: 1400px; margin: 0 auto;
    padding: clamp(2rem, 6vw, 5rem) clamp(1.25rem, 5vw, 4rem) clamp(3rem, 6vw, 6rem);
    position: relative;
}
.l-eyebrow {
    font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--safelight); margin: 0 0 1.1rem;
}
.l-hero h1 {
    font-size: clamp(2.6rem, 5.2vw, 4.2rem); line-height: 1.04; font-weight: 700;
    margin: 0 0 1.3rem; color: var(--paper); letter-spacing: -0.01em;
}
.l-hero h1 em { font-style: normal; color: var(--safelight); }
.l-hero-lede { font-size: 1.1rem; color: var(--slate); max-width: 46ch; margin: 0 0 2rem; }
.l-hero-actions { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.l-hero-footnote { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.78rem; color: var(--slate); letter-spacing: 0.02em; }

/* ---------- Visuel héro : la planche qui s'imprime ---------- */
.l-hero-visual { position: relative; display: flex; justify-content: center; }
.l-sheet {
    position: relative; overflow: hidden;
    width: min(360px, 100%); background: var(--paper); color: var(--ink-text);
    border-radius: 6px; padding: 1.1rem 1.1rem 0.9rem; transform: rotate(2deg);
    box-shadow: 0 30px 60px rgba(0,0,0,0.45), 0 0 0 1px rgba(0,0,0,0.04);
}
.l-sheet-header, .l-sheet-footer {
    display: flex; justify-content: space-between; font-family: 'IBM Plex Mono', monospace;
    font-size: 0.62rem; letter-spacing: 0.04em; color: #6b7280; text-transform: uppercase;
}
.l-sheet-header { margin-bottom: 0.7rem; }
.l-sheet-footer { margin-top: 0.7rem; padding-top: 0.6rem; border-top: 1px dashed #c9c2b3; }
.l-sheet-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.l-cell {
    aspect-ratio: 35 / 45; border-radius: 2px; position: relative;
    background: linear-gradient(155deg, #6fa2ef, var(--blue));
    outline: 1px solid rgba(0,0,0,0.08); outline-offset: 2px;
    opacity: 0; animation: l-print-in 0.5s ease forwards;
    animation-delay: calc(var(--d) * 0.09s + 0.3s);
}
.l-cell::before, .l-cell::after {
    content: ''; position: absolute; width: 6px; height: 6px;
    border-top: 1px solid #9AA6BA; border-left: 1px solid #9AA6BA;
}
.l-cell::before { top: -4px; left: -4px; }
.l-cell::after { bottom: -4px; right: -4px; transform: rotate(180deg); }
@keyframes l-print-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}
.l-scanline {
    position: absolute; left: 0; right: 0; height: 40%;
    background: linear-gradient(180deg, transparent, rgba(244,123,32,0.18), transparent);
    animation: l-scan 2.6s ease-in-out 0.2s 1;
}
@keyframes l-scan {
    from { top: -40%; }
    to { top: 100%; }
}

.l-notif-toast {
    position: absolute; bottom: -1.4rem; left: -1rem; background: var(--graphite);
    border: 1px solid rgba(255,255,255,0.08); border-radius: 8px; padding: 0.65rem 0.9rem;
    box-shadow: 0 12px 30px rgba(0,0,0,0.4); font-size: 0.78rem; display: flex; flex-direction: column; gap: 0.1rem;
    opacity: 0; animation: l-toast-in 0.5s ease forwards; animation-delay: 2.1s;
}
.l-notif-toast strong { color: var(--paper); font-family: 'Space Grotesk', sans-serif; font-size: 0.82rem; }
.l-notif-toast span { color: var(--slate); font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; }
@keyframes l-toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Filmstrip / process ---------- */
.l-strip { background: var(--graphite); padding: clamp(3rem, 6vw, 4.5rem) clamp(1.25rem, 5vw, 4rem); }
.l-strip-title {
    text-align: center; font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem;
    letter-spacing: 0.1em; text-transform: uppercase; color: var(--safelight); margin: 0 0 2.5rem;
}
.l-filmstrip {
    max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 0; border-top: 3px dotted rgba(247,243,234,0.25); border-bottom: 3px dotted rgba(247,243,234,0.25);
}
.l-frame { padding: 2rem 1.75rem; border-right: 1px solid rgba(247,243,234,0.12); }
.l-frame:last-child { border-right: none; }
.l-frame-num {
    font-weight: 600; font-size: 1.05rem; color: var(--paper); margin-bottom: 0.6rem;
    display: flex; align-items: center; gap: 0.5rem;
}
.l-frame p { color: var(--slate); font-size: 0.95rem; margin: 0; }

/* ---------- Features ---------- */
.l-features { max-width: 1200px; margin: 0 auto; padding: clamp(4rem, 7vw, 6rem) clamp(1.25rem, 5vw, 4rem); text-align: center; }
.l-eyebrow-center { text-align: center; }
.l-section-title {
    font-family: 'Newsreader', serif; font-weight: 500; font-style: italic;
    font-size: clamp(1.6rem, 3vw, 2.3rem); color: var(--paper); max-width: 32ch; margin: 0 auto 3.5rem;
}
.l-feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; text-align: left; }
.l-feature-card {
    background: var(--graphite); border: 1px solid rgba(247,243,234,0.08); border-radius: 10px;
    padding: 1.6rem 1.5rem;
}
.l-feature-tag {
    display: inline-block; font-family: 'IBM Plex Mono', monospace; font-size: 0.68rem;
    letter-spacing: 0.08em; color: var(--safelight); margin-bottom: 0.85rem;
}
.l-feature-card h3 { font-size: 1.08rem; color: var(--paper); margin: 0 0 0.5rem; font-weight: 600; }
.l-feature-card p { font-size: 0.92rem; color: var(--slate); margin: 0; line-height: 1.5; }

/* ---------- Philosophie ---------- */
.l-philosophy { background: var(--paper); color: var(--ink-text); padding: clamp(4rem, 7vw, 6rem) clamp(1.25rem, 5vw, 4rem); }
.l-philosophy-inner { max-width: 780px; margin: 0 auto; }
.l-philosophy h2 {
    font-family: 'Space Grotesk', sans-serif; font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700;
    line-height: 1.1; margin: 0 0 1.3rem;
}
.l-philosophy p { font-size: 1.08rem; color: #4b5566; max-width: 58ch; margin: 0 0 1.8rem; }
.l-philosophy-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem 2rem; }
.l-philosophy-list li {
    font-family: 'IBM Plex Mono', monospace; font-size: 0.85rem; padding-left: 1.3rem; position: relative;
}
.l-philosophy-list li::before { content: '—'; position: absolute; left: 0; color: var(--safelight); }

/* ---------- CTA final ---------- */
.l-cta {
    text-align: center; padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 5vw, 4rem);
    max-width: 800px; margin: 0 auto;
}
.l-cta h2 {
    font-family: 'Newsreader', serif; font-weight: 500; font-size: clamp(1.7rem, 3.4vw, 2.4rem);
    color: var(--paper); margin: 0 0 2rem; line-height: 1.3;
}

/* ---------- Footer ---------- */
.l-footer {
    display: flex; justify-content: space-between; align-items: center;
    padding: 2rem clamp(1.25rem, 5vw, 4rem); border-top: 1px solid rgba(247,243,234,0.1);
    max-width: 1400px; margin: 0 auto; color: var(--slate); font-size: 0.85rem;
}

/* ---------- Tarifs ---------- */
.l-pricing { padding:clamp(4rem,7vw,6rem) clamp(1.25rem,5vw,4rem); background:#0e1d42; }
.l-price-grid { max-width:1200px; margin:0 auto; display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; align-items:stretch; }
.l-price-card { position:relative; display:flex; flex-direction:column; padding:1.5rem; border:1px solid rgba(247,243,234,.12); border-radius:14px; background:var(--graphite); }
.l-price-card.featured { border-color:var(--safelight); box-shadow:0 16px 50px rgba(244,123,32,.16); transform:translateY(-8px); }
.l-price-card i { position:absolute; top:12px; right:12px; color:var(--safelight); font-size:.63rem; font-style:normal; font-weight:800; text-transform:uppercase; }
.l-price-card > span { color:var(--paper); font-weight:800; }
.l-price-card > strong { display:block; margin:1rem 0 .1rem; color:var(--paper); font-size:1.55rem; letter-spacing:-.04em; }
.l-price-card > small { color:var(--slate); }
.l-price-card ul { margin:1.3rem 0 1.5rem; display:grid; gap:.55rem; color:var(--slate); font-size:.85rem; }
.l-price-card li::before { content:'✓'; color:var(--safelight); margin-right:.5rem; font-weight:900; }
.l-price-card .l-btn { margin-top:auto; text-align:center; }
.l-price-btn { border:1px solid rgba(247,243,234,.22); color:var(--paper); }
.l-price-btn:hover { border-color:var(--paper); }
.l-price-note { margin:1.8rem auto 0; text-align:center; color:var(--slate); font-size:.76rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .l-topnav { display: none; }
    .l-hero { grid-template-columns: 1fr; }
    .l-hero-visual { margin-top: 1rem; }
    .l-filmstrip { grid-template-columns: 1fr; }
    .l-frame { border-right: none; border-bottom: 1px solid rgba(247,243,234,0.12); }
    .l-frame:last-child { border-bottom: none; }
    .l-feature-grid { grid-template-columns: 1fr; }
    .l-price-grid { grid-template-columns:repeat(2,1fr); }
    .l-philosophy-list { grid-template-columns: 1fr; }
    .l-footer { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 580px) {
    .l-topbar-actions .l-link-btn { display:none; }
    .l-price-grid { grid-template-columns:1fr; }
    .l-price-card.featured { transform:none; }
}

@media (prefers-reduced-motion: reduce) {
    .l-cell, .l-notif-toast, .l-scanline { animation: none !important; opacity: 1 !important; }
    .l-scanline { display: none; }
}