/* ============================================================
   INDEX.CSS — Página inicial (Stella · landing page)
   Estilos específicos da home. Para base compartilhado,
   ver base.css.
   ============================================================ */

/* ───────────── HERO ───────────── */
.hero {
    position: relative;
    padding: 80px 0 100px;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 10%, rgba(125, 249, 255, 0.12), transparent 60%),
        radial-gradient(ellipse 60% 60% at 85% 30%, rgba(217, 70, 239, 0.14), transparent 60%),
        radial-gradient(ellipse 100% 60% at 50% 100%, rgba(167, 139, 250, 0.08), transparent 70%);
}
.hero-bg::after {
    content: ""; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 30%, transparent 80%);
}
.hero-content {
    position: relative; z-index: 1;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-text { max-width: 600px; }
.hero h1 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(48px, 6vw, 84px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 28px 0 24px;
}
.hero h1 em {
    font-style: italic;
    background: var(--grad);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero .lede {
    font-size: 20px;
    line-height: 1.55;
    max-width: 580px;
    margin-bottom: 36px;
}
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-meta {
    display: flex; gap: 28px; margin-top: 44px; flex-wrap: wrap;
    font-family: var(--mono); font-size: 12px; color: var(--text-dim);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta .check { color: var(--lime); }

@media (max-width: 980px) {
    .hero-content { grid-template-columns: 1fr; gap: 50px; }
    .hero { padding: 50px 0 70px; }
}

/* ───────────── HERO CHAT (typing demo) ───────────── */
.chat {
    position: relative;
    background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
    border: 1px solid var(--border-hi);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow:
        0 1px 0 rgba(255,255,255,0.06) inset,
        0 40px 80px -20px rgba(0,0,0,0.6),
        0 0 80px -20px rgba(125, 249, 255, 0.15);
    backdrop-filter: blur(20px);
    min-height: 480px;
    overflow: hidden;
}
.chat::before {
    content: ""; position: absolute; inset: -1px;
    border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, rgba(125, 249, 255, 0.5), rgba(217, 70, 239, 0.5), transparent 50%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    opacity: 0.6;
    pointer-events: none;
}
.chat-head {
    display: flex; align-items: center; gap: 12px;
    padding-bottom: 16px; margin-bottom: 18px;
    border-bottom: 1px solid var(--border);
}
.chat-avatar {
    width: 38px; height: 38px; border-radius: 50%;
    background: var(--grad);
    display: grid; place-items: center;
    font-weight: 700; color: var(--bg);
    font-family: var(--serif); font-size: 18px;
    position: relative;
}
.chat-avatar::after {
    content: ""; position: absolute; bottom: 1px; right: 1px;
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--lime);
    border: 2px solid var(--bg-elev);
    box-shadow: 0 0 8px var(--lime);
}
.chat-who { font-weight: 600; font-size: 14px; }
.chat-status {
    font-family: var(--mono); font-size: 11px;
    color: var(--text-dim); display: flex; align-items: center; gap: 6px;
}
.chat-status .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 6px var(--lime); }
.chat-channels { margin-left: auto; display: flex; gap: 6px; }
.chat-channels span {
    font-family: var(--mono); font-size: 10px;
    padding: 4px 8px; border-radius: 999px;
    background: var(--surface); border: 1px solid var(--border);
    color: var(--text-muted);
}
.chat-body { display: flex; flex-direction: column; gap: 14px; }
.bubble {
    max-width: 82%; padding: 12px 16px;
    border-radius: 18px;
    font-size: 14px; line-height: 1.5;
    animation: bubble-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes bubble-in {
    from { opacity: 0; transform: translateY(8px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
.bubble.user {
    align-self: flex-end;
    background: var(--surface-hi);
    border: 1px solid var(--border);
    border-bottom-right-radius: 6px;
    color: var(--text);
}
.bubble.stella {
    align-self: flex-start;
    background: var(--grad);
    color: var(--bg);
    font-weight: 500;
    border-bottom-left-radius: 6px;
}
.bubble.stella .lbl {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.1em; text-transform: uppercase;
    opacity: 0.7; display: block; margin-bottom: 4px;
}
.typing {
    align-self: flex-start;
    display: inline-flex; gap: 4px;
    padding: 14px 18px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 18px; border-bottom-left-radius: 6px;
}
.typing span {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--text-muted);
    animation: typing 1.4s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
    0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
    30% { opacity: 1; transform: translateY(-4px); }
}
.chat-meta {
    display: flex; gap: 12px; margin-top: 18px; padding-top: 14px;
    border-top: 1px solid var(--border);
    font-family: var(--mono); font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.06em; text-transform: uppercase;
}
.chat-meta span { display: flex; align-items: center; gap: 6px; }

/* ───────────── MARQUEE ───────────── */
.marquee {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 28px 0;
    overflow: hidden;
    background: var(--bg-elev);
}
.marquee-track {
    display: flex; gap: 56px;
    animation: marquee 38s linear infinite;
    width: max-content;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}
.marquee-item {
    display: flex; align-items: center; gap: 14px;
    font-family: var(--serif); font-style: italic;
    font-size: 28px; color: var(--text-muted);
    white-space: nowrap;
}
.marquee-item .glyph {
    font-family: var(--sans); font-style: normal;
    font-size: 24px; color: var(--text);
    width: 44px; height: 44px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
}
.marquee-item em {
    font-style: normal; font-family: var(--mono); font-size: 11px;
    color: var(--text-dim); letter-spacing: 0.1em; text-transform: uppercase;
    margin-left: -8px;
}

/* ───────────── SECTION DEFAULTS ───────────── */
section { padding: 130px 0; position: relative; }

/* Quote-bar: descrição da seção ganha presença visual */
.section-desc {
    position: relative;
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.55;
    color: var(--text);
    background: linear-gradient(135deg, rgba(125,249,255,.06), rgba(217,70,239,.04));
    border: 1px solid rgba(125,249,255,.15);
    border-left: 2px solid var(--cyan);
    padding: 16px 20px 16px 22px;
    border-radius: 4px;
    max-width: 520px;
    letter-spacing: -0.005em;
}
.section-desc::before {
    content: "“";
    position: absolute;
    top: -2px; left: 10px;
    font-family: var(--serif);
    font-size: 38px;
    line-height: 1;
    color: var(--cyan);
    opacity: .6;
}
.section-desc::after {
    content: "”";
    margin-left: 4px;
    font-family: var(--serif);
    font-size: 22px;
    color: var(--cyan);
    opacity: .5;
}

/* Stack vertical: kicker → quote → título. Título sempre na base. */
.section-head {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-bottom: 70px;
}
.section-head .section-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(40px, 4.5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    max-width: 720px;
}
.section-head .section-title em {
    font-style: italic;
    background: var(--grad);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (max-width: 880px) {
    .section-head { gap: 20px; margin-bottom: 50px; }
    section { padding: 80px 0; }
    .section-desc { font-size: 13px; padding: 14px 16px 14px 18px; }
}

/* ───────────── STEPS (How Stella works) ───────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 880px) { .steps { grid-template-columns: 1fr; } }
.step {
    position: relative;
    padding: 32px 28px 36px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s;
    overflow: hidden;
}
.step::before {
    content: ""; position: absolute; inset: 0;
    background: var(--grad-soft);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}
.step:hover { border-color: var(--border-hi); transform: translateY(-3px); }
.step:hover::before { opacity: 1; }
.step > * { position: relative; }
.step-num {
    font-family: var(--mono); font-size: 12px;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    margin-bottom: 60px;
    display: flex; align-items: center; gap: 8px;
}
.step-num::after {
    content: ""; flex: 1; height: 1px; background: var(--border);
}
.step-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    background: var(--surface-hi);
    border: 1px solid var(--border);
    display: grid; place-items: center;
    font-size: 22px;
    margin-bottom: 24px;
    transition: all 0.3s;
}
.step:hover .step-icon {
    background: var(--grad);
    border-color: transparent;
    transform: scale(1.05);
}
.step:hover .step-icon span { filter: brightness(0); }
.step-icon span { filter: grayscale(0) brightness(1); transition: filter 0.3s; }
.step h3 {
    font-family: var(--serif); font-size: 26px;
    font-weight: 400; letter-spacing: -0.01em;
    margin-bottom: 10px; line-height: 1.15;
}
.step p { font-size: 14.5px; color: var(--text-muted); line-height: 1.6; }

/* ───────────── HOW STELLA SOUNDS (Gemini Flash Live) ───────────── */
.voice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
@media (max-width: 980px) { .voice-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .voice-grid { grid-template-columns: 1fr; } }
.voice-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 26px 24px;
    transition: transform .25s, border-color .25s;
    overflow: hidden;
}
.voice-card::before {
    content: "";
    position: absolute; inset: 0;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(125,249,255,.06), rgba(217,70,239,.04));
    opacity: 0;
    transition: opacity .25s;
    pointer-events: none;
}
.voice-card:hover { transform: translateY(-3px); border-color: var(--border-hi); }
.voice-card:hover::before { opacity: 1; }
.voice-card > * { position: relative; }
.voice-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 44px; height: 44px;
    font-size: 22px;
    background: rgba(125, 249, 255, 0.08);
    border: 1px solid rgba(125, 249, 255, 0.2);
    border-radius: 10px;
    margin-bottom: 16px;
}
.voice-card h3 {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.15;
    margin-bottom: 10px;
}
.voice-card p { font-size: 14px; color: var(--text-muted); line-height: 1.55; }

/* ───────────── USE CASES ───────────── */
.cases { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
@media (max-width: 980px) { .cases { grid-template-columns: repeat(2, 1fr); } }
.case {
    grid-column: span 2;
    padding: 28px 26px 30px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.3s;
    position: relative; overflow: hidden;
}
.case.wide { grid-column: span 3; }
@media (max-width: 980px) { .case, .case.wide { grid-column: span 1; } }
.case:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.case h4 {
    font-family: var(--serif); font-size: 24px;
    font-weight: 400; margin-bottom: 10px; line-height: 1.2;
}
.case p { font-size: 14px; color: var(--text-muted); }
.case-tag {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--mono); font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 0.1em; text-transform: uppercase;
    margin-bottom: 18px;
}
.case-tag::before { content: ""; width: 14px; height: 1px; background: var(--text-dim); }

/* ───────────── PLANS ───────────── */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 880px) { .plans { grid-template-columns: 1fr; } }
.plan {
    position: relative;
    padding: 40px 36px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}
.plan.featured {
    border-color: transparent;
    background: linear-gradient(180deg, rgba(125, 249, 255, 0.05), rgba(217, 70, 239, 0.05));
}
.plan.featured::before {
    content: ""; position: absolute; inset: 0;
    border-radius: var(--radius-lg); padding: 1px;
    background: var(--grad);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    pointer-events: none;
}
.plan-badge {
    position: absolute; top: -12px; right: 28px;
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.12em; text-transform: uppercase;
    padding: 6px 12px; border-radius: 999px;
    background: var(--grad); color: var(--bg);
    font-weight: 600;
}
.plan-name {
    font-family: var(--mono); font-size: 12px;
    letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 18px;
}
.plan h3 {
    font-family: var(--serif);
    font-size: 38px; font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: 14px; line-height: 1.05;
}
.plan .price {
    display: flex; align-items: baseline; gap: 8px;
    font-family: var(--serif); font-size: 56px;
    letter-spacing: -0.03em; line-height: 1;
    margin-bottom: 26px;
}
.plan .price small {
    font-family: var(--sans); font-size: 13px;
    color: var(--text-muted); font-weight: 400;
    letter-spacing: 0;
}
.plan-desc {
    font-size: 14.5px; color: var(--text-muted);
    padding-bottom: 24px; margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.plan ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.plan li {
    display: flex; align-items: flex-start; gap: 12px;
    font-size: 14px; color: var(--text);
    line-height: 1.5;
}
.plan li svg { flex-shrink: 0; margin-top: 3px; }

/* CTA abaixo dos planos (sem preço) */
.plans-cta {
    margin-top: 36px;
    padding: 22px 28px;
    border: 1px dashed var(--border-hi);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: 15px;
    color: var(--text-muted);
    background: rgba(125, 249, 255, 0.02);
}
.plans-cta a {
    color: var(--cyan);
    text-decoration: none;
    border-bottom: 1px solid currentColor;
    padding-bottom: 1px;
    transition: color .2s;
}
.plans-cta a:hover { color: var(--magenta); }

/* ───────────── DEMO BAND ───────────── */
.demo-band {
    background: var(--bg-elev);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.demo-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: center;
}
@media (max-width: 980px) { .demo-grid { grid-template-columns: 1fr; gap: 50px; } }
.demo-text .section-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(34px, 4vw, 52px);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 18px 0 18px;
}
.demo-text .section-title em {
    font-style: italic;
    background: var(--grad);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.demo-text p { font-size: 16px; color: var(--text-muted); max-width: 480px; margin-bottom: 26px; }
.demo-text .scenarios { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.scenario {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 16px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all 0.25s;
    cursor: default;
}
.scenario:hover { border-color: var(--border-hi); background: var(--surface-hi); }
.scenario.active {
    border-color: rgba(125, 249, 255, 0.4);
    background: rgba(125, 249, 255, 0.05);
}
.scenario-tag {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--cyan); flex-shrink: 0; width: 56px;
}
.scenario-text { color: var(--text); flex: 1; }
.scenario.active .scenario-text { color: var(--text); }
.scenario.active::after {
    content: "●"; color: var(--cyan); animation: pulse 1.4s infinite;
}

.demo-phone {
    position: relative;
    background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
    border: 1px solid var(--border-hi);
    border-radius: 32px;
    padding: 24px;
    box-shadow: 0 60px 120px -30px rgba(0,0,0,0.7), 0 0 100px -30px rgba(125, 249, 255, 0.2);
    min-height: 540px;
    overflow: hidden;
}
.demo-phone::before {
    content: ""; position: absolute; inset: -1px;
    border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, rgba(125, 249, 255, 0.5), rgba(217, 70, 239, 0.4), transparent 50%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    pointer-events: none;
}
.phone-head {
    display: flex; align-items: center; gap: 12px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}
.phone-head .name { font-weight: 600; }
.phone-head .channel-tag {
    margin-left: auto;
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--text-muted);
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
}
.phone-body { display: flex; flex-direction: column; gap: 14px; min-height: 380px; }

/* ───────────── ABOUT — info table ───────────── */
.about-card {
    padding: 50px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.about-card h3 {
    font-family: var(--serif); font-size: 32px;
    font-weight: 400; letter-spacing: -0.01em;
    margin-bottom: 8px;
}
.about-card p.sub { color: var(--text-muted); margin-bottom: 36px; font-size: 15px; }
.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.about-grid .cell {
    background: var(--bg-elev);
    padding: 22px 24px;
}
.about-grid .cell strong {
    display: block;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 6px;
    font-weight: 500;
}
.about-grid .cell span { font-size: 14.5px; color: var(--text); }
.about-grid .cell a { color: var(--cyan); text-decoration: none; border-bottom: 1px dotted var(--cyan); padding-bottom: 1px; }
.about-grid .cell a:hover { color: var(--text); border-color: var(--text); }
.about-grid .cell.wide { grid-column: 1 / -1; }
@media (max-width: 760px) {
    .about-card { padding: 30px 24px; }
    .about-grid { grid-template-columns: 1fr; }
}

/* ───────────── FINAL CTA ───────────── */
.final-cta { text-align: center; padding: 160px 0 140px; position: relative; overflow: hidden; }
.final-cta::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 60% 40% at 50% 50%, rgba(217, 70, 239, 0.18), transparent 60%),
        radial-gradient(ellipse 80% 50% at 50% 50%, rgba(125, 249, 255, 0.1), transparent 70%);
    z-index: 0;
}
.final-cta > * { position: relative; z-index: 1; }
.final-cta h2 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(48px, 6vw, 88px);
    line-height: 1.05;
    letter-spacing: -0.02em;
    max-width: 800px;
    margin: 0 auto 28px;
}
.final-cta h2 em {
    font-style: italic;
    background: var(--grad);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.final-cta p {
    font-size: 18px; color: var(--text-muted);
    max-width: 540px; margin: 0 auto 40px;
}
.cta-stack { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta-stack .small-note {
    display: block; margin-top: 110px;
    font-family: var(--mono); font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 0.1em; text-transform: uppercase;
}