/* ============================================================================
   NeuroCruce – Stylesheet
   Light SaaS theme, Inter font, deep blue + violet accents
   ============================================================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

:root {
    --c-primary:       #1e40af;
    --c-primary-dk:    #1e3a8a;
    --c-primary-lt:    #3b82f6;
    --c-accent:        #6366f1;
    --c-accent-lt:     #818cf8;
    --c-accent-soft:   #ede9fe;
    --c-text:          #0f172a;
    --c-text-soft:     #334155;
    --c-muted:         #64748b;
    --c-border:        #e2e8f0;
    --c-bg:            #ffffff;
    --c-bg-soft:       #f8fafc;
    --c-bg-tint:       #f1f5f9;
    --c-success:       #059669;

    --shadow-sm:       0 1px 2px rgba(15,23,42,0.05);
    --shadow-md:       0 4px 12px rgba(15,23,42,0.06);
    --shadow-lg:       0 12px 32px rgba(15,23,42,0.08);
    --shadow-glow:     0 12px 40px rgba(99,102,241,0.18);

    --radius-sm:       8px;
    --radius:          14px;
    --radius-lg:       20px;

    --font:            'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font);
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-accent); }

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.975rem;
    text-decoration: none;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff;
    box-shadow: var(--shadow-md);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: #fff;
}
.btn-ghost {
    background: #fff;
    color: var(--c-text);
    border-color: var(--c-border);
}
.btn-ghost:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
    transform: translateY(-2px);
}

/* ── LAYOUT ────────────────────────────────────────────────── */
.section { padding: 5.5rem 1.5rem; }
.section-inner { max-width: 1140px; margin: 0 auto; }
.section-center { text-align: center; }

.eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--c-accent);
    margin-bottom: 0.85rem;
    padding: 0.35rem 0.85rem;
    background: var(--c-accent-soft);
    border-radius: 999px;
}

.section-title {
    font-size: clamp(1.85rem, 3.6vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.6px;
    line-height: 1.2;
    color: var(--c-text);
    margin-bottom: 1rem;
}

.section-lead {
    font-size: 1.1rem;
    color: var(--c-muted);
    max-width: 680px;
    line-height: 1.75;
}
.section-center .section-lead { margin: 0 auto; }

/* ── HEADER ────────────────────────────────────────────────── */
.nc-header {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.85rem 1.5rem;
}
.nc-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}
.nc-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--c-text);
    letter-spacing: -0.3px;
    line-height: 1;
}
.nc-logo:hover { color: var(--c-accent); opacity: 0.9; }
.nc-logo-img {
    height: 101px;
    width: auto;
    display: block;
}
.nc-footer .nc-logo-img { height: 91px; }
.nc-logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    box-shadow: var(--shadow-md);
}
.nc-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
    list-style: none;
}
.nc-nav a {
    color: var(--c-text-soft);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.4rem 0;
    position: relative;
}
.nc-nav a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 0; height: 2px;
    background: var(--c-accent);
    transition: width 0.25s ease;
}
.nc-nav a:hover { color: var(--c-text); }
.nc-nav a:hover::after { width: 100%; }
.nc-nav a.is-active { color: var(--c-accent); }
.nc-nav a.is-active::after { width: 100%; }

.nc-nav-cta {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff !important;
    padding: 0.55rem 1.25rem !important;
    border-radius: var(--radius-sm);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}
.nc-nav-cta::after { display: none !important; }
.nc-nav-cta:hover { color: #fff !important; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.nc-menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--c-border);
    border-radius: 8px;
    padding: 0.45rem 0.65rem;
    cursor: pointer;
    color: var(--c-text);
    font-size: 1.2rem;
    line-height: 1;
}

/* ── HERO ────────────────────────────────────────────────── */
.hero {
    background:
        radial-gradient(ellipse 80% 60% at 80% 0%, rgba(99,102,241,0.14) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 0% 100%, rgba(59,130,246,0.10) 0%, transparent 55%),
        linear-gradient(180deg, #ffffff 0%, var(--c-bg-soft) 100%);
    padding: 6rem 1.5rem 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-inner { max-width: 820px; margin: 0 auto; position: relative; z-index: 1; }

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--c-accent-soft);
    color: var(--c-accent);
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 1.75rem;
    border: 1px solid rgba(99,102,241,0.25);
}

.hero h1 {
    font-size: clamp(2.4rem, 5.5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--c-text);
    margin-bottom: 1.5rem;
}
.hero h1 em {
    font-style: normal;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--c-muted);
    max-width: 620px;
    margin: 0 auto 2.5rem;
    line-height: 1.65;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

/* ── VIDEO ───────────────────────────────────────────────── */
.video-frame {
    max-width: 920px;
    margin: 0 auto;
    background: #0f172a;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    box-shadow:
        var(--shadow-lg),
        0 0 0 1px rgba(99,102,241,0.18);
}
.video-frame video {
    display: block;
    width: 100%;
    height: auto;
}
.video-sound-btn {
    position: absolute;
    bottom: 16px;
    right: 16px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(15,23,42,0.78);
    border: 1px solid rgba(255,255,255,0.25);
    color: #fff;
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: background 0.2s ease, transform 0.2s ease, opacity 0.3s ease;
}
.video-sound-btn:hover {
    background: rgba(99,102,241,0.85);
    transform: translateY(-1px);
}
.video-sound-icon { font-size: 1rem; line-height: 1; }
@media (max-width: 540px) {
    .video-sound-btn { bottom: 10px; right: 10px; padding: 0.45rem 0.75rem; font-size: 0.8rem; }
    .video-sound-label { display: none; }
}

/* ── STRIP / SPLIT ────────────────────────────────────────── */
.strip {
    background: var(--c-bg-soft);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    padding: 4rem 1.5rem;
}
.strip-inner {
    max-width: 1040px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    gap: 0;
    align-items: start;
}
.strip-block { padding: 0 3rem; }
.strip-block:first-child { padding-left: 0; }
.strip-block:last-child  { padding-right: 0; }
.strip-divider { background: var(--c-border); height: 100%; min-height: 120px; }
.strip-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--c-accent);
    margin-bottom: 0.75rem;
}
.strip-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 0.75rem;
    letter-spacing: -0.3px;
}
.strip-text { font-size: 0.95rem; color: var(--c-muted); line-height: 1.7; }

/* ── CARDS / PILLARS ─────────────────────────────────────── */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3.5rem;
}
.card {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 1.85rem;
    transition: all 0.25s ease;
}
.card:hover {
    border-color: rgba(99,102,241,0.4);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}
.card-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(129,140,248,0.08));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
    color: var(--c-accent);
}
.card h3 {
    font-size: 1.08rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--c-text);
    letter-spacing: -0.2px;
}
.card p {
    font-size: 0.93rem;
    color: var(--c-muted);
    line-height: 1.7;
}

/* ── DARK BAND ────────────────────────────────────────────── */
.band-dark {
    background: linear-gradient(140deg, #0f172a 0%, #1e293b 60%, #312e81 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.band-dark::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 80% 20%, rgba(99,102,241,0.25) 0%, transparent 60%),
        radial-gradient(ellipse 50% 40% at 10% 90%, rgba(59,130,246,0.18) 0%, transparent 55%);
    pointer-events: none;
}
.band-dark > .section-inner { position: relative; z-index: 1; }
.band-dark .section-title { color: #fff; }
.band-dark .section-lead  { color: rgba(255,255,255,0.7); }
.band-dark .eyebrow       { color: var(--c-accent-lt); background: rgba(99,102,241,0.18); border: 1px solid rgba(99,102,241,0.3); }

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
    margin-top: 3rem;
}
.case-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius);
    padding: 1.85rem;
    transition: all 0.25s ease;
}
.case-card:hover {
    background: rgba(99,102,241,0.18);
    border-color: rgba(129,140,248,0.5);
}
.case-num {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--c-accent-lt);
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}
.case-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}
.case-card p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.65;
}

/* ── PROCESS / TIMELINE ──────────────────────────────────── */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-top: 3rem;
    counter-reset: step;
}
.step {
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 1.75rem 1.5rem 1.5rem;
    position: relative;
    counter-increment: step;
}
.step::before {
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
    opacity: 0.85;
}
.step h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.55rem;
    color: var(--c-text);
    max-width: 80%;
}
.step p {
    font-size: 0.9rem;
    color: var(--c-muted);
    line-height: 1.65;
}

/* ── FEATURE LIST ────────────────────────────────────────── */
.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem 2rem;
    margin-top: 2.5rem;
    list-style: none;
}
.feature-list li {
    display: flex;
    gap: 0.75rem;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--c-border);
    font-size: 0.95rem;
    color: var(--c-text-soft);
}
.feature-list li::before {
    content: '✓';
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0.15rem;
}

/* ── CTA BAND ────────────────────────────────────────────── */
.cta-band {
    background: var(--c-bg-soft);
    padding: 5.5rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--c-border);
}
.cta-band .section-title { margin-bottom: 0.75rem; }
.cta-band .section-lead  { margin: 0 auto 2.5rem; }

/* ── FORM ────────────────────────────────────────────────── */
.form-card {
    max-width: 720px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--c-text);
    margin-bottom: 0.4rem;
    letter-spacing: 0.2px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 0.95rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--c-text);
    background: var(--c-bg-soft);
    transition: all 0.2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--c-accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(99,102,241,0.1);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-hint {
    background: var(--c-accent-soft);
    border-left: 3px solid var(--c-accent);
    padding: 0.85rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--c-text-soft);
    margin-bottom: 1.25rem;
}

/* ── LOGIN CARD ──────────────────────────────────────────── */
.login-wrap {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1.5rem;
    background:
        radial-gradient(ellipse 60% 40% at 80% 20%, rgba(99,102,241,0.08) 0%, transparent 60%),
        var(--c-bg-soft);
}
.login-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
}
.login-card .nc-logo-mark { margin: 0 auto 1.25rem; }
.login-card h1 {
    font-size: 1.65rem;
    font-weight: 800;
    margin-bottom: 0.4rem;
    text-align: center;
    letter-spacing: -0.5px;
}
.login-card .login-hint {
    text-align: center;
    font-size: 0.9rem;
    color: var(--c-muted);
    margin-bottom: 2rem;
}
.login-card .form-row { grid-template-columns: 1fr; gap: 0; margin-bottom: 0; }
.login-card button[type=submit] { width: 100%; justify-content: center; margin-top: 0.5rem; }
.login-card .login-foot {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--c-muted);
}
.login-card .login-foot a { font-weight: 600; }

/* ── LEGAL PAGE ──────────────────────────────────────────── */
.legal-page {
    max-width: 860px;
    margin: 0 auto;
    padding: 3rem 1.5rem 5rem;
}
.legal-page h1 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.7px;
    margin-bottom: 2rem;
    color: var(--c-text);
}
.legal-section { margin-bottom: 2.5rem; }
.legal-section h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 0.75rem;
    letter-spacing: -0.3px;
}
.legal-section .legal-body {
    color: var(--c-text-soft);
    font-size: 0.975rem;
    line-height: 1.8;
}
.legal-section .legal-body p { margin-bottom: 0.8rem; }
.legal-empty {
    padding: 2rem;
    background: var(--c-bg-soft);
    border: 1px dashed var(--c-border);
    border-radius: var(--radius);
    color: var(--c-muted);
    text-align: center;
    font-size: 0.95rem;
}

/* ── FOOTER ──────────────────────────────────────────────── */
.nc-footer {
    background: linear-gradient(180deg, var(--c-bg-soft) 0%, #eef2f7 100%);
    border-top: 1px solid var(--c-border);
    padding: 4rem 1.5rem 2rem;
    color: var(--c-text-soft);
}
.nc-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 3rem;
}
.nc-footer h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--c-text);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 1rem;
}
.nc-footer ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.nc-footer ul a {
    color: var(--c-text-soft);
    font-size: 0.92rem;
    transition: color 0.2s ease;
}
.nc-footer ul a:hover { color: var(--c-accent); }
.nc-footer-brand p {
    font-size: 0.92rem;
    color: var(--c-muted);
    line-height: 1.7;
    margin: 0.85rem 0;
    max-width: 320px;
}
.nc-footer-bottom {
    max-width: 1200px;
    margin: 3rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--c-muted);
}

/* ── MOBILE ──────────────────────────────────────────────── */
@media (max-width: 860px) {
    .nc-footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
    .hero      { padding: 4.5rem 1.25rem 3.5rem; }
    .hero-cta  { flex-direction: column; align-items: stretch; max-width: 320px; margin-left: auto; margin-right: auto; }
    .section   { padding: 4rem 1.25rem; }
    .strip     { padding: 2.5rem 1.25rem; }
    .strip-inner   { grid-template-columns: 1fr; }
    .strip-divider { display: none; }
    .strip-block   { padding: 0 0 2rem; }
    .strip-block:last-child { padding-bottom: 0; }

    .nc-menu-toggle { display: block; }
    .nc-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        flex-direction: column;
        background: #fff;
        border-bottom: 1px solid var(--c-border);
        padding: 1rem 1.5rem 1.5rem;
        gap: 0.25rem;
        box-shadow: var(--shadow-md);
    }
    .nc-nav.is-open { display: flex; }
    .nc-nav a { padding: 0.7rem 0; width: 100%; }
    .nc-nav a::after { display: none; }
    .nc-nav-cta { text-align: center; padding: 0.75rem !important; }

    .form-row { grid-template-columns: 1fr; }
    .form-card, .login-card { padding: 1.75rem 1.25rem; }
}
@media (max-width: 540px) {
    .nc-footer-inner { grid-template-columns: 1fr; }
    .nc-footer-bottom { justify-content: center; text-align: center; }
}