/* ── EP04 — Sécuriser l'accès SSH avec Teleport ─────────── */

:root {
    --bg: #0D1117; --bg2: #161B22; --bg3: #1C2128;
    --green: #00E676; --violet: #7C3AED; --blue: #3B82F6;
    --orange: #F97316; --red: #EF4444; --yellow: #FBBF24;
    --cyan: #22D3EE; --pink: #F472B6; --teleport: #512FC9;
    --white: #FFFFFF; --gray: #9CA3AF; --border: #374151;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    background: var(--bg); color: var(--white);
    font-family: 'Inter', system-ui, sans-serif;
    overflow: hidden; width: 100vw; height: 100vh;
}

/* ── Progress bar ────────────────────────────────────────── */
.progress-bar {
    position: fixed; top: 0; left: 0; height: 3px;
    background: linear-gradient(90deg, var(--green), var(--cyan), var(--violet));
    z-index: 100; transition: width 0.5s ease-out;
}

/* ── World container ─────────────────────────────────────── */
.ssh-world {
    position: absolute; top: 0; left: 0; width: 100%; height: 200%;
    transform-origin: 0 0;
    transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}
.ssh-world canvas {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 5;
}

/* ── Intro overlay ───────────────────────────────────────── */
.intro-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 50%;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    z-index: 25; pointer-events: none;
    background: var(--bg);
    opacity: 0; transition: opacity 0.6s;
}
.intro-overlay.show { opacity: 1; }
.intro-logo {
    width: 100px; height: 100px;
    filter: drop-shadow(0 0 30px rgba(81,47,201,0.5)) drop-shadow(0 0 60px rgba(81,47,201,0.25));
    animation: float 4s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}
.intro-title {
    font-size: 3.5rem; font-weight: 900; letter-spacing: -2px;
    background: linear-gradient(135deg, var(--teleport), var(--violet), var(--cyan));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    text-align: center; margin-top: 24px; line-height: 1.1;
}
.intro-sub {
    font-size: 1.3rem; font-weight: 300; color: var(--gray); margin-top: 12px;
    text-align: center;
}
.intro-line {
    width: 300px; height: 2px;
    background: linear-gradient(90deg, transparent, var(--teleport), transparent);
    margin-top: 20px;
}
.intro-badge {
    display: inline-block; padding: 10px 28px; margin-top: 20px;
    background: linear-gradient(135deg, rgba(81,47,201,0.15), rgba(124,58,237,0.1));
    border: 1px solid rgba(81,47,201,0.4); border-radius: 30px;
    font-size: 0.95rem; font-weight: 700; letter-spacing: 2px;
    color: var(--violet);
}

/* ── Central admin ───────────────────────────────────────── */
.admin-center {
    position: absolute; z-index: 10;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 6px;
    opacity: 0; transform: scale(0.8);
    transition: all 0.8s cubic-bezier(.16,1,.3,1);
}
.admin-center.show { opacity: 1; transform: scale(1); }
.admin-center svg { color: var(--cyan); filter: drop-shadow(0 0 16px rgba(34,211,238,0.4)); }
.admin-center-label {
    font-size: 1.4rem; font-weight: 700; color: var(--cyan);
    text-transform: uppercase; letter-spacing: 1.5px;
}

/* ── Server boxes (individual, positioned) ───────────────── */
.srv-box {
    position: absolute; z-index: 2;
    display: flex; align-items: center; gap: 10px;
    padding: 6px 12px; border-radius: 8px;
    background: rgba(15,23,42,0.8);
    border: 1.5px solid var(--border);
    opacity: 0; transform: scale(0.9);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
}
.srv-box.show { opacity: 1; transform: scale(1); }
.srv-box svg { flex-shrink: 0; color: var(--gray); }
.srv-name {
    flex: 1;
    font-size: 1rem; font-weight: 600; color: var(--white);
    font-family: 'Courier New', monospace; letter-spacing: 0.5px;
    white-space: nowrap;
}
.port-badge {
    background: var(--red); color: white;
    font-size: 0.95rem; font-weight: 700; padding: 3px 8px;
    border-radius: 4px; line-height: 1;
    animation: portPulse 2s ease-in-out infinite;
}
@keyframes portPulse {
    0%, 100% { opacity: 0.7; box-shadow: 0 0 4px rgba(239,68,68,0.3); }
    50% { opacity: 1; box-shadow: 0 0 12px rgba(239,68,68,0.6); }
}

/* DC-colored borders */
.srv-dc-eu { border-color: rgba(59,130,246,0.4); }
.srv-dc-us { border-color: rgba(34,211,238,0.4); }
.srv-dc-aws { border-color: rgba(249,115,22,0.4); }

/* Red glow when connections activate */
.srv-glow {
    box-shadow: 0 0 20px rgba(239,68,68,0.25), 0 0 40px rgba(239,68,68,0.1);
    border-color: rgba(239,68,68,0.5) !important;
}

/* ── Intermediary boxes (firewall, IAM) ──────────────────── */
.midbox {
    position: absolute; z-index: 6;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 8px 16px; border-radius: 8px;
    background: rgba(15,23,42,0.9);
    opacity: 0; transform: scale(0.85);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
}
.midbox.show { opacity: 1; transform: scale(1); }
.midbox-label {
    font-size: 1.15rem; font-weight: 700; white-space: nowrap;
}
.midbox-firewall {
    border: 1.5px solid rgba(239,68,68,0.5);
    box-shadow: 0 0 20px rgba(239,68,68,0.15);
}
.midbox-firewall .midbox-label { color: var(--red); }
.midbox-iam {
    border: 1.5px solid rgba(249,115,22,0.5);
    box-shadow: 0 0 20px rgba(249,115,22,0.15);
}
.midbox-iam .midbox-label { color: var(--orange); }

/* ── Flow labels (midpoint of Bézier paths) ──────────────── */
.flow-label {
    position: absolute; z-index: 8;
    font-size: 0.95rem; font-weight: 700;
    letter-spacing: 0.5px;
    background: rgba(13,17,23,0.85);
    padding: 4px 10px; border-radius: 5px;
    transform: translate(-50%, -100%);
    opacity: 0; transition: opacity 0.5s;
    pointer-events: none; white-space: nowrap;
}
.flow-label.show { opacity: 0.9; }

/* ── Auth method badges on servers ───────────────────────── */
.auth-badge {
    display: inline-flex; align-items: center;
    opacity: 0; transition: opacity 0.4s;
}
.auth-badge.show { opacity: 1; }

/* ── DC labels (discreet text above server groups) ───────── */
.dc-label {
    position: absolute; z-index: 3;
    font-size: 1.1rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 2px;
    opacity: 0; transition: opacity 0.6s;
}
.dc-label.show { opacity: 0.5; }

/* ── Problem cards (horizontal row) ──────────────────────── */
.problems-row {
    position: absolute; display: flex; gap: 14px;
    justify-content: center; align-items: stretch;
    z-index: 10;
}
.problem-card {
    background: linear-gradient(145deg, rgba(239,68,68,0.08), rgba(239,68,68,0.02));
    border: 1px solid rgba(239,68,68,0.25);
    border-radius: 10px; padding: 14px 16px;
    display: flex; align-items: flex-start; gap: 12px;
    flex: 1;
    opacity: 0; transform: translateY(15px);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
}
.problem-card.show { opacity: 1; transform: none; }
.problem-icon { flex-shrink: 0; margin-top: 2px; }
.problem-info { display: flex; flex-direction: column; gap: 4px; }
.problem-card h4 {
    font-size: 1.2rem; font-weight: 700; color: var(--red); margin-bottom: 2px;
}
.problem-card p {
    font-size: 1rem; color: var(--gray); line-height: 1.4;
}

/* ── Scene dimming ────────────────────────────────────────── */
.scene-dimmed { opacity: 0.12 !important; transition: opacity 1s; }

/* ── Scan counter (step 3) ───────────────────────────────── */
.scan-counter {
    position: absolute; z-index: 20;
    top: 3%; right: 4%;
    padding: 8px 16px; border-radius: 8px;
    border: 1px solid rgba(239,68,68,0.4);
    background: rgba(13,17,23,0.9);
    font-size: 1.2rem; font-weight: 700; color: var(--red);
    font-family: 'Courier New', monospace;
    opacity: 0; transition: opacity 0.6s;
    pointer-events: none;
}
.scan-counter.show { opacity: 1; }
.scan-counter-label { color: var(--gray); }
.scan-counter-value { animation: counterPulse 2s ease-in-out infinite; }
@keyframes counterPulse { 0%, 100% { opacity: 0.7; } 50% { opacity: 1; } }

/* ── Path key (step 4 — key on Bézier) ───────────────────── */
.path-key {
    position: absolute; z-index: 20;
    left: 38%; top: 28%;
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    opacity: 0; transform: scale(0.8);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
    pointer-events: none;
}
.path-key.show { opacity: 1; transform: scale(1); }
.path-key-label {
    font-size: 0.9rem; font-weight: 500; color: var(--gray);
    font-family: 'Courier New', monospace;
    white-space: nowrap;
}

/* ── Leaked key copy (step 4) ────────────────────────────── */
.leaked-key {
    position: absolute; z-index: 18;
    left: 38%; top: 28%;
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    opacity: 0;
    transition: left 2s cubic-bezier(0.4,0,0.2,1), top 2s cubic-bezier(0.4,0,0.2,1), opacity 0.6s;
    pointer-events: none;
}
.leaked-key.show { opacity: 0.6; }
.leaked-key.leaked-active { opacity: 0.8; }
.leaked-key svg { color: var(--red); filter: drop-shadow(0 0 10px rgba(239,68,68,0.4)); }
.leaked-label {
    font-size: 0.9rem; font-weight: 700; color: var(--red);
    white-space: nowrap;
}

/* ── Time counter (step 4) ───────────────────────────────── */
.time-counter {
    position: absolute; z-index: 22;
    left: 50%; top: 3%; transform: translateX(-50%);
    font-size: 1.4rem; font-weight: 600; color: var(--gray);
    font-style: italic;
    opacity: 0; transition: opacity 0.8s;
    pointer-events: none;
}
.time-counter.show { opacity: 0.8; }

/* ── Attacker box (step 4) ───────────────────────────────── */
.attacker-box {
    position: absolute; z-index: 10;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 6px;
    opacity: 0; transform: scale(0.8);
    transition: all 0.8s cubic-bezier(.16,1,.3,1);
    pointer-events: none;
}
.attacker-box.show { opacity: 1; transform: scale(1); }
.attacker-box svg { color: var(--red); filter: drop-shadow(0 0 16px rgba(239,68,68,0.5)); }
.attacker-label {
    font-size: 1rem; font-weight: 700; color: var(--red);
    text-transform: uppercase; letter-spacing: 1px;
    white-space: nowrap;
}

/* ── Credential overlay text (step 4) ────────────────────── */
.cred-overlay {
    position: absolute; z-index: 25;
    left: 50%; top: 35%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    pointer-events: none;
    opacity: 0; transition: opacity 0.8s;
}
.cred-overlay.show { opacity: 1; }
.cred-line {
    font-size: 2rem; font-weight: 700;
    text-align: center; white-space: nowrap;
    opacity: 0; transform: translateY(8px);
    transition: all 0.8s;
}
.cred-line.show { opacity: 1; transform: none; }
.cred-line-1 { color: var(--yellow); text-shadow: 0 0 20px rgba(251,191,36,0.3); }
.cred-line-2 { color: var(--red); text-shadow: 0 0 20px rgba(239,68,68,0.3); }

/* ── Summary columns (step 5) ────────────────────────────── */
.summary-cols {
    position: absolute; z-index: 25;
    left: 50%; top: 30%; transform: translateX(-50%);
    display: flex; gap: 24px;
    opacity: 0; transition: opacity 0.8s;
    pointer-events: none;
}
.summary-cols.show { opacity: 1; }
.summary-cols.fade-out { opacity: 0; transition: opacity 1.5s; }
.summary-col {
    padding: 18px 22px; border-radius: 12px;
    background: rgba(13,17,23,0.9);
    min-width: 260px;
    opacity: 0; transform: translateY(10px);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
}
.summary-col.show { opacity: 1; transform: none; }
.summary-col h3 {
    font-size: 1.5rem; font-weight: 800;
    text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: 12px;
}
.summary-col-network { border: 1.5px solid rgba(239,68,68,0.4); }
.summary-col-network h3 { color: var(--red); }
.summary-col-cred { border: 1.5px solid rgba(251,191,36,0.4); }
.summary-col-cred h3 { color: var(--yellow); }
.summary-item, .s2-contrast-item {
    display: flex; align-items: center; gap: 10px;
    font-size: 1.1rem; color: var(--gray);
    padding: 4px 0; line-height: 1.4;
}

/* ── Summary list icons ──────────────────────────────────── */
.sum-icon {
    flex-shrink: 0; width: 22px; height: 22px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; font-size: 0.75rem; font-weight: 800;
}
.sum-cross {
    background: rgba(239,68,68,0.15); color: var(--red);
    border: 1px solid rgba(239,68,68,0.3);
}
.sum-check {
    background: rgba(0,230,118,0.15); color: var(--green);
    border: 1px solid rgba(0,230,118,0.3);
}
.sum-text { flex: 1; }

/* ── Hook text (step 5) ──────────────────────────────────── */
.hook-text {
    position: absolute; z-index: 30;
    left: 50%; top: 42%; transform: translateX(-50%);
    font-size: 2.2rem; font-weight: 700; color: var(--green);
    text-shadow: 0 0 30px rgba(0,230,118,0.3);
    white-space: nowrap; text-align: center;
    opacity: 0; transition: opacity 1s;
    pointer-events: none;
}
.hook-text.show { opacity: 1; }

/* ── Cinematic narration (fade-in letters) ───────────────── */
.cin-narr-wrap {
    position: fixed; bottom: 12%; left: 50%;
    transform: translateX(-50%);
    z-index: 50; text-align: center;
    max-width: 75%;
    opacity: 0; pointer-events: none;
}
.cin-narr-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.2rem; font-weight: 200;
    color: var(--white);
    text-shadow: 0 0 30px rgba(0,0,0,0.9);
    letter-spacing: 1.2px; line-height: 1.5;
    min-height: 1.5em;
}
.cin-narr-text .cin-char {
    opacity: 0;
    transition: opacity 0.4s ease-out;
    display: inline;
}
.cin-narr-text .cin-char.visible { opacity: 0.85; }

/* ── Nav pills ───────────────────────────────────────────── */
.nav {
    position: fixed; bottom: 0; left: 0; width: 100%; height: 54px;
    background: rgba(13,17,23,0.95); backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center; gap: 6px;
    z-index: 80; padding: 0 16px; overflow-x: auto;
}
.nav-item {
    padding: 5px 14px; border: 1px solid var(--border); border-radius: 20px;
    color: var(--gray); cursor: pointer; font-size: 0.85rem; font-weight: 500;
    transition: all 0.3s; white-space: nowrap;
}
.nav-item:hover { border-color: var(--green); color: var(--white); }
.nav-item.active {
    background: rgba(0,230,118,0.12);
    border-color: var(--green);
    color: var(--green);
}

/* ── Lang switch ─────────────────────────────────────────── */
.lang-switch {
    position: fixed; top: 12px; right: 16px; z-index: 90;
    display: flex; gap: 4px;
}
.lang-btn {
    padding: 4px 10px; border-radius: 6px; cursor: pointer;
    font-size: 0.8rem; font-weight: 700; border: 1px solid var(--border);
    color: var(--gray); background: transparent; transition: all 0.2s;
}
.lang-btn.active {
    background: var(--cyan); color: var(--bg); border-color: var(--cyan);
}

/* ══════════════════════════════════════════════════════════ */
/* ══ SCENE 2 — Teleport Architecture ═════════════════════ */
/* ══════════════════════════════════════════════════════════ */

.scene2 {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 30; background: var(--bg);
    opacity: 0; pointer-events: none;
    transition: opacity 1s;
}
.scene2.active { opacity: 1; pointer-events: auto; }

.s2-world {
    position: absolute; top: 0; left: 0; width: 100%; height: 200%;
    transform-origin: 0 0;
    transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}
.s2-world canvas {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 5;
}

/* ── Cluster Teleport (violet branding, compact) ─────────── */
.s2-cluster {
    position: absolute; z-index: 2;
    left: 28%; top: 16%; width: 28%; padding-bottom: 8px;
    border-radius: 16px;
    border: 1.5px solid rgba(81,47,201,0.4);
    box-shadow: 0 0 40px rgba(81,47,201,0.12);
    background: rgba(81,47,201,0.03);
    opacity: 0; transform: scale(0.9);
    transition: all 0.8s cubic-bezier(.16,1,.3,1);
}
.s2-cluster.show { opacity: 1; transform: scale(1); }
.s2-cluster-header {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 8px 16px;
    font-size: 0.9rem; font-weight: 800; color: #512FC9;
    text-transform: uppercase; letter-spacing: 2px;
    border-bottom: 1px solid rgba(81,47,201,0.2);
}
.s2-cluster-header img { filter: drop-shadow(0 0 6px rgba(81,47,201,0.4)); }

/* ── Service boxes inside cluster ────────────────────────── */
.s2-box {
    position: absolute;
    display: flex; align-items: center; gap: 12px;
    padding: 10px 18px; border-radius: 10px;
    background: rgba(15,23,42,0.9);
    border: 1.5px solid var(--border);
    z-index: 3;
}
.s2-proxy { position: relative; width: 88%; margin: 8px auto 4px; border-color: rgba(0,230,118,0.4); }
.s2-auth  { position: relative; width: 88%; margin: 4px auto 4px; border-color: rgba(249,115,22,0.4); }
.s2-box-icon { flex-shrink: 0; }
.s2-box-name { font-size: 1.1rem; font-weight: 700; }
.s2-proxy .s2-box-name { color: var(--green); }
.s2-auth .s2-box-name { color: var(--orange); }
.s2-box-desc { font-size: 0.8rem; color: var(--gray); margin-top: 2px; }

/* ── IdP ─────────────────────────────────────────────────── */
.s2-idp {
    position: absolute; z-index: 3;
    left: 30%; top: 3%; width: 24%;
    display: flex; align-items: center; gap: 12px;
    padding: 10px 18px; border-radius: 10px;
    background: rgba(15,23,42,0.9);
    border: 1.5px solid rgba(124,58,237,0.4);
    opacity: 0; transform: translateY(-10px);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
}
.s2-idp.show { opacity: 1; transform: none; }
.s2-idp.s2-pulse {
    box-shadow: 0 0 30px rgba(124,58,237,0.4);
    transform: scale(1.03);
    border-color: rgba(124,58,237,0.7);
    transition: all 0.3s;
}
.s2-idp .s2-box-name { color: var(--violet); }

/* ── User terminal ───────────────────────────────────────── */
.s2-user {
    position: absolute; z-index: 3;
    left: -2%; top: 24%; width: 28%;
    border-radius: 10px;
    background: linear-gradient(145deg, #0f172a, #1e293b);
    border: 1.5px solid rgba(34,211,238,0.3);
    overflow: hidden;
    opacity: 0; transform: translateX(-15px);
    transition: all 0.7s cubic-bezier(.16,1,.3,1);
}
.s2-user.show { opacity: 1; transform: none; }
.s2-term-bar {
    display: flex; gap: 5px; padding: 5px 10px;
    background: rgba(0,0,0,0.3);
}
.s2-term-body {
    padding: 8px 12px; font-family: 'Courier New', monospace;
    font-size: 0.85rem; color: var(--cyan); line-height: 1.5;
    min-height: 40px; word-break: break-all;
}
.s2-prompt { color: var(--gray); }
.s2-cursor {
    display: inline-block; width: 7px; height: 14px;
    background: var(--cyan); vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.s2-output { color: var(--green); font-size: 0.8rem; }

/* ── DC zones (scene 2 — ports closed) ───────────────────── */
.s2-dc-zone {
    position: absolute; z-index: 2;
    border-radius: 10px;
    background: rgba(22,27,34,0.85);
    border: 1.5px solid var(--border);
    overflow: hidden;
    opacity: 0; transform: translateY(15px);
    transition: all 0.7s cubic-bezier(.16,1,.3,1);
}
.s2-dc-zone.show { opacity: 1; transform: none; }
.s2-dc-eu  { left: 66%; top: 14%; width: 24%; }
.s2-dc-us  { left: 66%; top: 38%; width: 24%; }
.s2-dc-aws { left: 66%; top: 62%; width: 24%; }
.s2-dc-header {
    padding: 5px 12px; font-size: 0.8rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 1px;
    border-bottom: 1px solid var(--border);
}
.s2-dc-eu .s2-dc-header { background: rgba(59,130,246,0.12); color: var(--blue); }
.s2-dc-us .s2-dc-header { background: rgba(34,211,238,0.12); color: var(--cyan); }
.s2-dc-aws .s2-dc-header { background: rgba(249,115,22,0.12); color: var(--orange); }
.s2-dc-servers { padding: 6px 10px; display: flex; flex-direction: column; gap: 3px; }
.s2-srv {
    display: flex; align-items: center; gap: 8px;
    padding: 3px 8px; border-radius: 5px;
    background: rgba(255,255,255,0.02);
}
.s2-srv svg { flex-shrink: 0; color: var(--gray); }
.s2-srv-name {
    flex: 1; font-size: 0.8rem; font-weight: 600; color: var(--white);
    font-family: 'Courier New', monospace;
}
.s2-port-closed {
    font-size: 0.7rem; font-weight: 700; color: var(--green);
    background: rgba(0,230,118,0.1); padding: 1px 5px;
    border-radius: 3px;
}
.s2-dc-label {
    padding: 3px 12px; font-size: 0.7rem; color: var(--green);
    font-weight: 600; text-align: center; opacity: 0.7;
}

/* ── Scene 2 states (dim, illuminate) ────────────────────── */
.s2-dimmed { opacity: 0.2 !important; transition: opacity 0.8s; }
.s2-srv.s2-srv-lit {
    background: rgba(0,230,118,0.08);
    border: 1px solid rgba(0,230,118,0.4);
    box-shadow: 0 0 16px rgba(0,230,118,0.2);
}
.s2-srv-lit .s2-port-closed { background: rgba(0,230,118,0.25); }

/* ── Flow labels (scene 2) ───────────────────────────────── */
.s2-flow-label {
    position: absolute; z-index: 8;
    font-size: 0.85rem; font-weight: 700;
    background: rgba(13,17,23,0.85);
    padding: 3px 10px; border-radius: 4px;
    transform: translate(-50%, -100%);
    opacity: 0; transition: opacity 0.5s;
    pointer-events: none; white-space: nowrap;
}
.s2-flow-label.show { opacity: 0.9; }

/* ── Certificate card (step 7) ───────────────────────────── */
.s2-cert-card {
    position: absolute; z-index: 20;
    left: 50%; top: 22%; transform: translateX(-50%) scale(0.9);
    width: 32%; min-width: 360px;
    padding: 18px 24px; border-radius: 12px;
    background: rgba(13,17,23,0.96);
    border: 1.5px solid rgba(251,191,36,0.5);
    box-shadow: 0 0 40px rgba(251,191,36,0.15), 0 0 80px rgba(251,191,36,0.05);
    display: flex; flex-direction: column; gap: 6px;
    opacity: 0;
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
    pointer-events: none;
}
.s2-cert-card.show { opacity: 1; transform: translateX(-50%) scale(1); }

/* ── Cert traveler (DOM, animates along path) ────────────── */
.s2-cert-traveler {
    position: absolute; z-index: 18;
    transform: translate(-50%, -50%);
    opacity: 0; pointer-events: none;
    filter: drop-shadow(0 0 16px rgba(251,191,36,0.6)) drop-shadow(0 0 32px rgba(251,191,36,0.3));
}
.s2-cert-traveler.show { opacity: 1; }
.s2-cert-traveler.pulse { animation: certPulse 0.5s ease-out; }
@keyframes certPulse {
    0% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.4); }
    100% { transform: translate(-50%, -50%) scale(1); }
}
/* ── Auth status text (under terminal) ────────────────────── */
.s2-auth-status {
    position: absolute; z-index: 12;
    left: -2%; top: 31%; width: 28%;
    font-size: 0.75rem; font-family: 'Outfit', 'Inter', sans-serif;
    font-weight: 300; line-height: 1.7;
    opacity: 0; transition: opacity 0.3s;
    pointer-events: none;
}
.s2-auth-status.show { opacity: 1; }
.s2-auth-status .status-line {
    display: block; margin-bottom: 2px;
    opacity: 0; transition: opacity 0.3s;
}
.s2-auth-status .status-line.visible { opacity: 1; }

.s2-cert-parked {
    position: absolute; z-index: 12;
    left: 4%; top: 34%;
    opacity: 0; transform: scale(0.8);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
    pointer-events: none;
    filter: drop-shadow(0 0 12px rgba(251,191,36,0.5));
}
.s2-cert-parked.show { opacity: 1; transform: scale(1); }
.s2-cert-row {
    display: flex; justify-content: space-between; gap: 8px;
    font-size: 0.8rem; font-family: 'Courier New', monospace;
    opacity: 0; transform: translateX(-8px);
    transition: all 0.4s cubic-bezier(.16,1,.3,1);
}
.s2-cert-row.show { opacity: 1; transform: none; }
.s2-cert-key { color: var(--gray); font-weight: 600; }
.s2-cert-val { font-weight: 700; text-align: right; }


/* ── Check / no-lateral / recorded (step 8) ──────────────── */
.s2-check {
    position: absolute; z-index: 20;
    left: 50%; top: 26%; transform: translateX(-50%);
    font-size: 0.9rem; font-weight: 700; color: var(--green);
    background: rgba(13,17,23,0.9); padding: 6px 14px;
    border-radius: 6px; border: 1px solid rgba(0,230,118,0.3);
    opacity: 0; transition: opacity 0.5s;
    pointer-events: none; white-space: nowrap;
}
.s2-check.show { opacity: 1; }
.s2-no-lateral {
    position: absolute; z-index: 20;
    right: 5%; top: 72%;
    font-size: 0.85rem; font-weight: 600; color: var(--green);
    opacity: 0; transition: opacity 0.6s;
    pointer-events: none;
}
.s2-no-lateral.show { opacity: 0.7; }
.s2-recorded {
    position: absolute; z-index: 20;
    left: 5%; top: 8%;
    display: flex; align-items: center; gap: 6px;
    font-size: 0.85rem; font-weight: 700; color: var(--red);
    opacity: 0; transition: opacity 0.6s;
    pointer-events: none;
}
.s2-recorded::before {
    content: ''; width: 8px; height: 8px;
    background: var(--red); border-radius: 50%;
    animation: recBlink 1.5s ease-in-out infinite;
}
@keyframes recBlink { 0%,100% { opacity: 0.4; } 50% { opacity: 1; } }
.s2-recorded.show { opacity: 1; }

/* ── Contrast columns (step 9) ───────────────────────────── */
.s2-contrast {
    position: absolute; z-index: 25;
    left: 50%; top: 25%; transform: translate(-50%, -50%);
    display: flex; gap: 28px;
    opacity: 0; transition: opacity 0.8s;
    pointer-events: none;
}
.s2-contrast.show { opacity: 1; }
.s2-contrast.fade-out { opacity: 0; transition: opacity 1.5s; }
.s2-contrast-col {
    padding: 22px 26px; border-radius: 12px;
    background: rgba(13,17,23,0.9);
    width: 320px;
    opacity: 0; transform: translateY(10px);
    transition: all 0.6s cubic-bezier(.16,1,.3,1);
}
.s2-contrast-col.show { opacity: 1; transform: none; }
.s2-contrast-col h3 {
    font-size: 1.4rem; font-weight: 800;
    text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: 12px;
}
.s2-contrast-before { border: 1.5px solid rgba(239,68,68,0.4); }
.s2-contrast-before h3 { color: var(--red); }
.s2-contrast-after { border: 1.5px solid rgba(0,230,118,0.4); }
.s2-contrast-after h3 { color: var(--green); }
/* s2-contrast-item styled via shared .summary-item rule above */

/* ── Hook text (step 9) ──────────────────────────────────── */
.s2-hook {
    position: absolute; z-index: 30;
    left: 50%; top: 25%; transform: translate(-50%, -50%);
    font-size: 2.2rem; font-weight: 700; color: var(--green);
    text-shadow: 0 0 30px rgba(0,230,118,0.3);
    white-space: nowrap; text-align: center;
    opacity: 0; transition: opacity 1s;
    pointer-events: none;
}
.s2-hook.show { opacity: 1; }

/* ══════════════════════════════════════════════════════════ */
/* ═══ SCENE 3 — Enrôlement Linux SSH (steps 10–15) ══════════ */
/* ══════════════════════════════════════════════════════════ */
.scene3 {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: var(--bg);
    opacity: 0; pointer-events: none;
    transition: opacity 0.8s ease-out;
    z-index: 40;
}
.scene3.active { opacity: 1; pointer-events: auto; }

.scene3 > div { display: none; }
.scene3.active .s3-transition.active,
.scene3.active .s3-iframe-wrap.active,
.scene3.active .s3-recap.active { display: flex; }

/* ── Transition slide (step 10) ──────────────────────────── */
.s3-transition {
    position: absolute; inset: 0;
    flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 60px;
    background: radial-gradient(ellipse at center, rgba(81,47,201,0.18), transparent 60%);
    opacity: 0; transition: opacity 0.8s;
}
.s3-transition.active { opacity: 1; }
.s3-badge:empty { display: none; }
.s3-transition .s3-badge {
    font-size: 0.85rem; font-weight: 700; letter-spacing: 3px;
    color: var(--cyan); text-transform: uppercase;
    padding: 8px 18px;
    border: 1px solid rgba(34,211,238,0.4);
    border-radius: 999px;
    margin-bottom: 32px;
    background: rgba(34,211,238,0.05);
}
.s3-transition h1 {
    font-family: 'Outfit', 'Inter', sans-serif;
    font-weight: 300; font-size: 5rem; line-height: 1.1;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff 20%, var(--cyan) 80%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 28px;
}
.s3-transition .s3-sub {
    font-size: 1.4rem; color: var(--gray); font-weight: 300;
    margin-bottom: 40px;
}
.s3-transition .s3-sub code {
    color: var(--cyan); background: rgba(34,211,238,0.08);
    padding: 2px 8px; border-radius: 4px;
    font-family: 'Courier New', monospace; font-size: 0.95em;
}
.s3-transition .s3-hook {
    font-size: 1.1rem; color: var(--green); font-weight: 500;
    opacity: 0.85;
}

/* ── Iframe slides (steps 11–14) ─────────────────────────── */
.s3-iframe-wrap {
    position: absolute; inset: 0;
    flex-direction: column;
    opacity: 0; transition: opacity 0.6s;
}
.s3-iframe-wrap.active { opacity: 1; }
.s3-iframe-header {
    flex: 0 0 auto;
    display: flex; align-items: center; gap: 20px;
    padding: 16px 28px;
    background: linear-gradient(180deg, rgba(22,27,34,0.95), rgba(22,27,34,0.88));
    border-bottom: 1px solid rgba(55,65,81,0.5);
    backdrop-filter: blur(8px);
}
.s3-iframe-tag {
    font-size: 0.75rem; font-weight: 700; letter-spacing: 2px;
    color: var(--cyan); text-transform: uppercase;
    padding: 5px 12px;
    border: 1px solid rgba(34,211,238,0.35);
    border-radius: 6px;
    white-space: nowrap;
}
.s3-iframe-title {
    flex: 1; min-width: 0;
}
.s3-iframe-title h3 {
    font-size: 1.25rem; font-weight: 600; color: var(--white);
    margin: 0; line-height: 1.3;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.s3-iframe-title .s3-iframe-sub {
    font-size: 0.85rem; color: var(--gray); margin-top: 2px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.s3-iframe-open {
    font-size: 0.85rem; color: var(--cyan); text-decoration: none;
    padding: 8px 14px;
    border: 1px solid rgba(34,211,238,0.35);
    border-radius: 6px;
    transition: all 0.2s;
    white-space: nowrap;
}
.s3-iframe-open:hover {
    background: rgba(34,211,238,0.1);
    border-color: rgba(34,211,238,0.6);
}
.s3-iframe-hint {
    font-size: 0.75rem; color: var(--gray); opacity: 0.7;
    padding: 6px 28px;
    background: rgba(13,17,23,0.6);
    border-bottom: 1px solid rgba(55,65,81,0.3);
    text-align: center;
}
.s3-iframe-frame {
    flex: 1 1 auto;
    position: relative;
    background: var(--bg);
}
.s3-iframe-frame iframe {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    border: 0;
}

/* ── Recap slide (step 15) ───────────────────────────────── */
.s3-recap {
    position: absolute; inset: 0;
    flex-direction: column; align-items: center; justify-content: center;
    text-align: center; padding: 60px 120px;
    background: radial-gradient(ellipse at center, rgba(0,230,118,0.12), transparent 60%);
    opacity: 0; transition: opacity 0.8s;
}
.s3-recap.active { opacity: 1; }
.s3-recap .s3-badge {
    font-size: 0.85rem; font-weight: 700; letter-spacing: 3px;
    color: var(--green); text-transform: uppercase;
    padding: 8px 18px;
    border: 1px solid rgba(0,230,118,0.4);
    border-radius: 999px;
    margin-bottom: 32px;
    background: rgba(0,230,118,0.05);
}
.s3-recap h1 {
    font-family: 'Outfit', 'Inter', sans-serif;
    font-weight: 300; font-size: 3.6rem; line-height: 1.15;
    letter-spacing: -0.5px;
    color: var(--white);
    margin-bottom: 40px;
}
.s3-recap ul {
    list-style: none; padding: 0; margin: 0 0 44px 0;
    max-width: 780px; width: 100%;
    display: flex; flex-direction: column; gap: 14px;
    text-align: left;
}
.s3-recap ul li {
    padding: 16px 20px;
    font-size: 1.02rem; line-height: 1.45;
    color: var(--white);
    background: rgba(13,17,23,0.6);
    border: 1px solid rgba(55,65,81,0.6);
    border-left: 3px solid var(--green);
    border-radius: 8px;
}
.s3-recap ul li::before {
    content: "✓ ";
    color: var(--green); font-weight: 700; margin-right: 6px;
}
.s3-recap .s3-hook {
    font-size: 1.3rem; color: var(--green); font-weight: 500;
    font-style: italic; opacity: 0.9;
}