/* ============================================================
   NeuroPips — Main Stylesheet
   ============================================================ */

:root {
    --primary:      #00d4ff;
    --primary-dark: #00a8cc;
    --secondary:    #7c3aed;
    --secondary-light: #9f67ff;
    --accent-green: #10b981;
    --accent-red:   #ef4444;
    --accent-yellow:#f59e0b;

    --bg:           #080d1a;
    --bg-card:      #0f1629;
    --bg-card2:     #141d35;
    --bg-glass:     rgba(15, 22, 41, 0.8);
    --border:       rgba(0, 212, 255, 0.12);
    --border-hover: rgba(0, 212, 255, 0.35);

    --text:         #e2e8f0;
    --text-muted:   #8892a4;
    --text-dim:     #4a5568;

    --gradient:     linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-r:   linear-gradient(135deg, var(--secondary), var(--primary));
    --nav-h:        72px;
    --radius:       12px;
    --radius-lg:    20px;
    --shadow:       0 4px 24px rgba(0,0,0,0.4);
    --shadow-glow:  0 0 40px rgba(0, 212, 255, 0.15);

    --font:         'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color .2s; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button, input, select, textarea { font-family: inherit; }

/* ---- Container ---- */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 860px; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    line-height: 1.2;
    font-weight: 700;
}
.section-label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(0,212,255,0.08);
    border: 1px solid rgba(0,212,255,0.2);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}
.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 16px;
}
.section-title .gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 560px; }
.text-center { text-align: center; }
.text-center .section-desc { margin-inline: auto; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 0 20px; height: 44px; border-radius: 8px;
    font-weight: 600; font-size: 0.92rem; cursor: pointer;
    border: none; transition: all .22s ease;
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 20px rgba(0,212,255,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(0,212,255,0.45); }
.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--bg); }
.btn-lg { height: 52px; padding: 0 28px; font-size: 1rem; border-radius: 10px; }
.btn-sm { height: 36px; padding: 0 14px; font-size: 0.83rem; }
.btn-green { background: linear-gradient(135deg, #10b981, #059669); color:#fff; }
.btn-green:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(16,185,129,0.4); }

/* ---- Navbar ---- */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    height: var(--nav-h); z-index: 1000;
    background: rgba(8,13,26,0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background .3s;
}
.navbar.scrolled { background: rgba(8,13,26,0.95); }
.nav-container {
    display: flex; align-items: center;
    height: var(--nav-h); gap: 32px;
}
.nav-logo {
    display: flex; align-items: center; gap: 10px;
    font-family: var(--font-display); font-weight: 800; font-size: 1.3rem;
}
.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: url('/assets/images/brand/logo.png') center/cover no-repeat;
    border: 1px solid rgba(0, 212, 255, 0.35);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.08);
}

.logo-icon i {
    display: none;
}
.logo-accent { color: var(--primary); }
.nav-links {
    display: flex; align-items: center; gap: 4px; flex: 1;
    justify-content: center;
}
.nav-link {
    padding: 8px 14px; border-radius: 6px; font-size: 0.9rem; font-weight: 500;
    color: var(--text-muted); transition: all .2s;
}
.nav-link:hover, .nav-link.active { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

/* User menu */
.user-menu {
    position: relative; display: flex; align-items: center; gap: 8px; cursor: pointer;
    padding: 6px 12px; border-radius: 8px; border: 1px solid var(--border);
    transition: border-color .2s;
}
.user-menu:hover { border-color: var(--primary); }
.user-avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--gradient); display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem; font-weight: 700; color: #fff;
}
.user-name { font-size: 0.88rem; font-weight: 500; }
.user-dropdown {
    display: none; position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--bg-card2); border: 1px solid var(--border); border-radius: var(--radius);
    min-width: 180px; overflow: hidden; box-shadow: var(--shadow);
}
.user-menu:hover .user-dropdown { display: block; }
.user-dropdown a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 16px; font-size: 0.88rem; color: var(--text-muted);
    transition: all .15s;
}
.user-dropdown a:hover { background: rgba(0,212,255,0.06); color: var(--text); }
.user-dropdown hr { border-color: var(--border); margin: 4px 0; }
.user-dropdown .logout-link { color: var(--accent-red); }
.user-dropdown .logout-link:hover { background: rgba(239,68,68,0.08); color: var(--accent-red); }

/* Hamburger */
.hamburger {
    display: none; flex-direction: column; gap: 5px; cursor: pointer;
    background: none; border: none; padding: 4px;
}
.hamburger span {
    display: block; width: 24px; height: 2px;
    background: var(--text); border-radius: 2px; transition: all .25s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ---- Hero Section ---- */
.hero {
    padding-top: calc(var(--nav-h) + 60px);
    padding-bottom: 80px;
    position: relative; overflow: hidden;
    min-height: 100vh; display: flex; align-items: center;
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse 70% 60% at 60% 50%, rgba(124,58,237,0.12) 0%, transparent 70%),
                radial-gradient(ellipse 50% 50% at 20% 80%, rgba(0,212,255,0.08) 0%, transparent 60%);
    pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0,212,255,0.06); border: 1px solid rgba(0,212,255,0.2);
    padding: 6px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 600;
    color: var(--primary); margin-bottom: 24px;
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); animation: pulse 1.5s infinite; }
.hero-title {
    font-size: clamp(2rem, 5vw, 3.6rem);
    font-weight: 900; line-height: 1.1; margin-bottom: 20px;
}
.hero-desc { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-stat span {
    display: block; font-size: 1.5rem; font-weight: 800; font-family: var(--font-display);
    background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-stat small { font-size: 0.8rem; color: var(--text-muted); }

/* Chart mockup */
.hero-visual { position: relative; }
.chart-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 20px;
    box-shadow: var(--shadow), var(--shadow-glow);
    position: relative; overflow: hidden;
}
.chart-card::before {
    content: '';position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: var(--gradient);
}
.chart-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.chart-title { font-size: 0.9rem; font-weight: 600; }
.live-badge {
    display: inline-flex; align-items: center; gap: 5px;
    background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3);
    color: var(--accent-green); font-size: 0.72rem; font-weight: 700; letter-spacing: .08em;
    padding: 3px 10px; border-radius: 20px;
}
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-green); animation: pulse 1s infinite; }
.chart-canvas-wrap { height: 180px; position: relative; margin-bottom: 16px; }
.chart-svg { width: 100%; height: 100%; }

/* Signal card floating */
.signal-card {
    display: flex; align-items: center; gap: 10px;
    background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3);
    border-radius: 10px; padding: 10px 14px; width: 100%;
}
.signal-icon {
    width: 36px; height: 36px; border-radius: 8px; background: var(--accent-green);
    display: flex; align-items: center; justify-content: center; font-size: 1rem; color: #fff; flex-shrink: 0;
}
.signal-text { flex: 1; }
.signal-label { font-size: 0.78rem; color: var(--text-muted); }
.signal-value { font-size: 0.92rem; font-weight: 700; color: var(--accent-green); }
.confidence-badge {
    background: rgba(16,185,129,0.15); border: 1px solid rgba(16,185,129,0.25);
    color: var(--accent-green); font-size: 0.8rem; font-weight: 700;
    padding: 3px 10px; border-radius: 20px;
}

/* ---- Trust bar ---- */
.trust-bar { padding: 48px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.trust-bar h5 { text-align: center; color: var(--text-dim); font-size: 0.78rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 28px; }
.marquee-wrapper { overflow: hidden; position: relative; }
.marquee-wrapper::before, .marquee-wrapper::after {
    content: ''; position: absolute; top: 0; bottom: 0; width: 80px;
    z-index: 1; pointer-events: none;
}
.marquee-wrapper::before { left: 0; background: linear-gradient(to right, var(--bg), transparent); }
.marquee-wrapper::after  { right: 0; background: linear-gradient(to left, var(--bg), transparent); }
.marquee-track {
    display: flex; gap: 48px; animation: marquee 28s linear infinite;
    width: max-content;
}
.marquee-track:hover { animation-play-state: paused; }
.marquee-item { font-size: 0.95rem; font-weight: 600; color: var(--text-dim); white-space: nowrap; transition: color .2s; }
.marquee-item:hover { color: var(--text-muted); }

/* ---- Steps ---- */
.steps { padding: 100px 0; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 60px; }
.step-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px;
    transition: all .3s; position: relative; overflow: hidden;
}
.step-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: var(--shadow-glow); }
.step-card::before { content: attr(data-step); position: absolute; top: 16px; right: 20px; font-size: 4rem; font-weight: 900; color: rgba(0,212,255,0.04); font-family: var(--font-display); }
.step-icon {
    width: 56px; height: 56px; border-radius: 14px; margin-bottom: 20px;
    display: flex; align-items: center; justify-content: center; font-size: 1.4rem;
}
.step-icon.blue  { background: rgba(0,212,255,0.1); color: var(--primary); }
.step-icon.purple{ background: rgba(124,58,237,0.12); color: var(--secondary-light); }
.step-icon.green { background: rgba(16,185,129,0.1); color: var(--accent-green); }
.step-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.step-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; }

/* ---- Features Grid ---- */
.features { padding: 100px 0; background: radial-gradient(ellipse 80% 60% at 50% 80%, rgba(124,58,237,0.06) 0%, transparent 70%); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; margin-top: 60px; }
.feature-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px 28px 24px;
    display: flex; flex-direction: column; gap: 14px;
    transition: all .3s; cursor: default;
}
.feature-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.feature-icon-row { display: flex; align-items: center; justify-content: space-between; }
.feature-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}
.feature-tag {
    font-size: 0.7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
    padding: 3px 10px; border-radius: 20px;
}
.tag-new  { background: rgba(0,212,255,0.1); color: var(--primary); }
.tag-pro  { background: rgba(124,58,237,0.12); color: var(--secondary-light); }
.feature-card h3 { font-size: 1.05rem; font-weight: 700; }
.feature-card p  { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; flex: 1; }
.feature-link { font-size: 0.85rem; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 5px; transition: gap .2s; }
.feature-link:hover { gap: 8px; }

/* ---- Testimonials ---- */
.testimonials { padding: 100px 0; overflow: hidden; }
.reviews-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 48px; }
.rating-stars { display: flex; gap: 4px; color: var(--accent-yellow); font-size: 1rem; margin-bottom: 6px; }
.rating-text { font-size: 0.85rem; color: var(--text-muted); }
.reviews-carousel { overflow: hidden; position: relative; }
.reviews-track { display: flex; gap: 24px; transition: transform .5s cubic-bezier(.25,.46,.45,.94); }
.review-card {
    flex: 0 0 360px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px; display: flex; flex-direction: column; gap: 16px;
}
.review-quote { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.review-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 0.9rem; font-weight: 700; color: #fff;
}
.review-info h5 { font-size: 0.9rem; font-weight: 700; }
.review-info span { font-size: 0.78rem; color: var(--text-muted); }
.verified-badge { font-size: 0.72rem; color: var(--primary); margin-left: 4px; }
.carousel-controls { display: flex; gap: 12px; margin-top: 32px; justify-content: center; }
.carousel-btn {
    width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border);
    background: var(--bg-card); color: var(--text-muted); cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: all .2s; font-size: 0.9rem;
}
.carousel-btn:hover { border-color: var(--primary); color: var(--primary); }
.carousel-dots { display: flex; gap: 8px; align-items: center; margin-top: 24px; justify-content: center; }
.carousel-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); cursor: pointer; transition: all .2s; }
.carousel-dot.active { background: var(--primary); width: 24px; border-radius: 4px; }

/* ---- Pricing ---- */
.pricing { padding: 100px 0; }
.pricing-toggle { display: flex; align-items: center; gap: 16px; justify-content: center; margin-top: 28px; margin-bottom: 52px; }
.toggle-label { font-size: 0.95rem; color: var(--text-muted); }
.toggle-label.active { color: var(--text); font-weight: 600; }
.toggle-switch {
    width: 52px; height: 28px; background: var(--border); border-radius: 14px;
    position: relative; cursor: pointer; border: none; transition: background .2s;
}
.toggle-switch.on { background: var(--primary); }
.toggle-knob {
    position: absolute; top: 3px; left: 3px; width: 22px; height: 22px;
    border-radius: 50%; background: #fff; transition: transform .2s;
}
.toggle-switch.on .toggle-knob { transform: translateX(24px); }
.save-badge {
    background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.25);
    color: var(--accent-green); font-size: 0.72rem; font-weight: 700; padding: 2px 8px; border-radius: 20px;
}
.pricing-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 28px; max-width: 960px; margin: 0 auto; }
.pricing-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px; position: relative; overflow: hidden;
    transition: all .3s;
}
.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary), var(--shadow-glow);
}
.popular-tag {
    position: absolute; top: 0; right: 0;
    background: var(--gradient); color: #fff; font-size: 0.72rem; font-weight: 700;
    padding: 5px 16px; border-radius: 0 var(--radius-lg) 0 var(--radius-lg);
}
.pricing-card:hover { transform: translateY(-4px); }
.plan-name { font-size: 0.78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }
.plan-price { display: flex; align-items: flex-end; gap: 4px; margin-bottom: 6px; }
.plan-price .amount { font-size: 2.8rem; font-weight: 900; font-family: var(--font-display); line-height: 1; }
.plan-price .period { font-size: 0.85rem; color: var(--text-muted); padding-bottom: 6px; }
.plan-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 28px; }
.plan-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.plan-feature { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; }
.plan-feature i.fa-check { color: var(--accent-green); }
.plan-feature i.fa-times { color: var(--text-dim); }

/* ---- FAQ ---- */
.faq { padding: 100px 0; }
.faq-list { max-width: 780px; margin: 56px auto 0; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden; transition: border-color .2s;
}
.faq-item.open { border-color: var(--primary); }
.faq-question {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 22px; cursor: pointer; user-select: none; transition: background .15s;
}
.faq-question:hover { background: rgba(0,212,255,0.03); }
.faq-question h4 { font-size: 0.95rem; font-weight: 600; }
.faq-icon { font-size: 1rem; color: var(--text-muted); transition: transform .25s; }
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--primary); }
.faq-answer {
    max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .25s;
    padding: 0 22px;
}
.faq-answer.open { max-height: 300px; padding: 0 22px 18px; }
.faq-answer p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

/* ---- CTA Banner ---- */
.cta-banner {
    padding: 100px 0;
    background: radial-gradient(ellipse 80% 70% at 50% 50%, rgba(0,212,255,0.08) 0%, transparent 70%);
}
.cta-inner {
    background: var(--bg-card2);
    border: 1px solid var(--border); border-radius: 24px;
    padding: 60px; text-align: center; position: relative; overflow: hidden;
}
.cta-inner::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--gradient);
}
.cta-inner h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 16px; }
.cta-inner p { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 36px; max-width: 520px; margin-inline: auto; margin-bottom: 36px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---- Auth Pages ---- */
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 100px 24px 60px; }
.auth-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 44px; width: 100%; max-width: 440px;
}
.auth-logo { display: flex; justify-content: center; margin-bottom: 28px; }
.auth-title { font-size: 1.6rem; font-weight: 800; text-align: center; margin-bottom: 4px; }
.auth-sub { text-align: center; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 28px; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--text-muted); }
.form-control {
    width: 100%; background: var(--bg); border: 1.5px solid var(--border);
    border-radius: 8px; padding: 10px 14px; color: var(--text); font-size: 0.95rem;
    transition: border-color .2s;
}
.form-control:focus { outline: none; border-color: var(--primary); }
.form-control::placeholder { color: var(--text-dim); }
.input-icon-wrap { position: relative; }
.input-icon-wrap .form-control { padding-left: 38px; }
.input-icon-wrap .form-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-dim); font-size: 0.9rem; }
.form-footer { text-align: center; font-size: 0.87rem; color: var(--text-muted); margin-top: 20px; }
.form-footer a { color: var(--primary); font-weight: 600; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; }
.auth-divider span { flex: 1; height: 1px; background: var(--border); }
.auth-divider small { font-size: 0.8rem; color: var(--text-dim); }
.btn-google {
    width: 100%; display: flex; align-items: center; justify-content: center; gap: 10px;
    height: 44px; border-radius: 8px; border: 1.5px solid var(--border);
    background: transparent; color: var(--text); font-size: 0.92rem; font-weight: 600; cursor: pointer;
    transition: border-color .2s;
}
.btn-google:hover { border-color: var(--primary); }
.alert {
    padding: 12px 16px; border-radius: 8px; font-size: 0.88rem; margin-bottom: 16px;
    border: 1px solid transparent;
}
.alert-error { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.3); color: #fca5a5; }
.alert-success { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.25); color: #6ee7b7; }

/* ---- Dashboard ---- */
.dash-layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.dash-sidebar {
    background: var(--bg-card); border-right: 1px solid var(--border);
    padding: 24px 16px; position: fixed; top: 0; left: 0; bottom: 0; width: 260px;
    overflow-y: auto; z-index: 100; display: flex; flex-direction: column;
}
.sidebar-logo { padding: 12px 8px 28px; }
.sidebar-nav { flex: 1; }
.sidebar-section { font-size: 0.68rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--text-dim); padding: 16px 8px 6px; }
.sidebar-link {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 10px; border-radius: 8px; font-size: 0.88rem; font-weight: 500;
    color: var(--text-muted); transition: all .2s; margin-bottom: 2px;
}
.sidebar-link:hover { background: rgba(0,212,255,0.06); color: var(--text); }
.sidebar-link.active { background: rgba(0,212,255,0.1); color: var(--primary); }
.sidebar-link i { width: 20px; text-align: center; }
.sidebar-footer { padding-top: 16px; border-top: 1px solid var(--border); }
.dash-main { margin-left: 260px; padding: calc(var(--nav-h) + 32px) 36px 48px; }
.dash-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 36px; }
.dash-title { font-size: 1.5rem; font-weight: 800; }
.dash-subtitle { color: var(--text-muted); font-size: 0.9rem; margin-top: 2px; }

/* Stats row */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 32px; }
.stat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px;
}
.stat-card .stat-label { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 6px; }
.stat-card .stat-val { font-size: 1.6rem; font-weight: 800; font-family: var(--font-display); }
.stat-card .stat-change { font-size: 0.78rem; margin-top: 4px; }
.text-green { color: var(--accent-green); }
.text-red   { color: var(--accent-red); }
.text-blue  { color: var(--primary); }

/* Upload area */
.upload-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px; margin-bottom: 28px;
}
.upload-card h3 { font-size: 1.1rem; margin-bottom: 20px; }
.upload-zone {
    border: 2px dashed var(--border); border-radius: var(--radius);
    padding: 48px; text-align: center; cursor: pointer;
    transition: all .2s; position: relative;
}
.upload-zone:hover, .upload-zone.drag-over { border-color: var(--primary); background: rgba(0,212,255,0.03); }
.upload-zone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload-icon { font-size: 2.5rem; color: var(--text-dim); margin-bottom: 12px; }
.upload-zone h4 { font-size: 1rem; margin-bottom: 6px; }
.upload-zone p { font-size: 0.85rem; color: var(--text-muted); }
.upload-preview { display: none; position: relative; }
.preview-img { width: 100%; max-height: 360px; object-fit: contain; border-radius: var(--radius); border: 1px solid var(--border); }
.remove-preview { position: absolute; top: 8px; right: 8px; background: rgba(239,68,68,0.9); color:#fff; border: none; border-radius: 50%; width: 28px; height: 28px; cursor: pointer; font-size: 0.8rem; }

/* Analysis type selector */
.analysis-types { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.analysis-type-btn {
    background: var(--bg); border: 1.5px solid var(--border); border-radius: 10px;
    padding: 12px 8px; text-align: center; cursor: pointer; transition: all .2s;
}
.analysis-type-btn:hover { border-color: var(--border-hover); }
.analysis-type-btn.selected { border-color: var(--primary); background: rgba(0,212,255,0.06); }
.analysis-type-btn input { display: none; }
.analysis-type-btn .type-icon { font-size: 1.2rem; margin-bottom: 4px; display: block; }
.analysis-type-btn .type-label { font-size: 0.76rem; font-weight: 600; color: var(--text-muted); }
.analysis-type-btn.selected .type-label { color: var(--primary); }

/* Result card */
.result-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px; display: none;
}
.result-card.visible { display: block; }
.result-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.result-header h3 { font-size: 1.05rem; }
.direction-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 14px; border-radius: 20px; font-size: 0.85rem; font-weight: 700;
}
.direction-buy  { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: var(--accent-green); }
.direction-sell { background: rgba(239,68,68,0.1);  border: 1px solid rgba(239,68,68,0.3);  color: var(--accent-red); }
.result-metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 14px; margin-bottom: 24px; }
.metric-box {
    background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
}
.metric-label { font-size: 0.72rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.metric-value { font-size: 1.05rem; font-weight: 700; }
.result-analysis { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.result-analysis h4 { font-size: 0.85rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; }
.result-analysis p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.75; }
.confidence-bar { height: 6px; background: var(--bg); border-radius: 3px; margin-top: 6px; overflow: hidden; }
.confidence-fill { height: 100%; border-radius: 3px; background: var(--gradient); transition: width 1s ease; }

/* Loading spinner */
.spinner {
    width: 40px; height: 40px; border: 3px solid var(--border);
    border-top-color: var(--primary); border-radius: 50%;
    animation: spin 0.8s linear infinite; margin: 20px auto;
}

/* History table */
.history-table { width: 100%; border-collapse: collapse; }
.history-table th, .history-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.88rem; }
.history-table th { color: var(--text-muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: .06em; }
.history-table tr:hover td { background: rgba(0,212,255,0.03); }

/* ---- Animations ---- */
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
@keyframes spin { to{transform:rotate(360deg)} }
@keyframes marquee { from{transform:translateX(0)} to{transform:translateX(-50%)} }
@keyframes fadeInUp { from{opacity:0;transform:translateY(24px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeInDown { from{opacity:0;transform:translateY(-24px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeInLeft { from{opacity:0;transform:translateX(-32px)} to{opacity:1;transform:translateX(0)} }
@keyframes fadeInRight { from{opacity:0;transform:translateX(32px)} to{opacity:1;transform:translateX(0)} }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes scaleIn { from{opacity:0;transform:scale(.92)} to{opacity:1;transform:scale(1)} }
@keyframes glow { 0%,100%{box-shadow:0 0 20px rgba(0,212,255,0.2)} 50%{box-shadow:0 0 40px rgba(0,212,255,0.5),0 0 80px rgba(0,212,255,0.15)} }
@keyframes glowPurple { 0%,100%{box-shadow:0 0 20px rgba(124,58,237,0.2)} 50%{box-shadow:0 0 40px rgba(124,58,237,0.5)} }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes shimmer { 0%{background-position:-200% center} 100%{background-position:200% center} }
@keyframes borderGlow { 0%,100%{border-color:rgba(0,212,255,0.12)} 50%{border-color:rgba(0,212,255,0.5)} }
@keyframes slideReveal { from{width:0} to{width:100%} }
@keyframes countUp { from{opacity:0;transform:translateY(10px) scale(.8)} to{opacity:1;transform:translateY(0) scale(1)} }
@keyframes ripple { 0%{transform:scale(0);opacity:.6} 100%{transform:scale(4);opacity:0} }
@keyframes gradientShift { 0%{background-position:0% 50%} 50%{background-position:100% 50%} 100%{background-position:0% 50%} }
@keyframes typingDot { 0%,60%,100%{transform:translateY(0)} 30%{transform:translateY(-8px)} }
@keyframes scanLine { 0%{top:0} 100%{top:100%} }
@keyframes pingRing { 0%{transform:scale(1);opacity:1} 75%,100%{transform:scale(2.2);opacity:0} }

/* ---- Animation classes ---- */
.animate-fade-up    { animation: fadeInUp .7s ease forwards; }
.animate-fade-down  { animation: fadeInDown .7s ease forwards; }
.animate-fade-left  { animation: fadeInLeft .7s ease forwards; }
.animate-fade-right { animation: fadeInRight .7s ease forwards; }
.animate-fade-in    { animation: fadeIn .6s ease forwards; }
.animate-scale-in   { animation: scaleIn .5s cubic-bezier(.4,0,.2,1) forwards; }
.animate-float      { animation: float 4s ease-in-out infinite; }
.animate-glow       { animation: glow 3s ease-in-out infinite; }
.animate-delay-1    { animation-delay: .1s; opacity: 0; }
.animate-delay-2    { animation-delay: .2s; opacity: 0; }
.animate-delay-3    { animation-delay: .3s; opacity: 0; }
.animate-delay-4    { animation-delay: .4s; opacity: 0; }
.animate-delay-5    { animation-delay: .5s; opacity: 0; }

/* Scroll-reveal base */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s cubic-bezier(.4,0,.2,1); }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-32px); transition: opacity .7s ease, transform .7s cubic-bezier(.4,0,.2,1); }
.reveal-left.revealed { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(32px); transition: opacity .7s ease, transform .7s cubic-bezier(.4,0,.2,1); }
.reveal-right.revealed { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(.93); transition: opacity .6s ease, transform .6s cubic-bezier(.4,0,.2,1); }
.reveal-scale.revealed { opacity: 1; transform: scale(1); }

/* Staggered children */
.stagger-children > * { opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
.stagger-children.revealed > *:nth-child(1) { opacity:1;transform:translateY(0);transition-delay:.05s }
.stagger-children.revealed > *:nth-child(2) { opacity:1;transform:translateY(0);transition-delay:.12s }
.stagger-children.revealed > *:nth-child(3) { opacity:1;transform:translateY(0);transition-delay:.19s }
.stagger-children.revealed > *:nth-child(4) { opacity:1;transform:translateY(0);transition-delay:.26s }
.stagger-children.revealed > *:nth-child(5) { opacity:1;transform:translateY(0);transition-delay:.33s }
.stagger-children.revealed > *:nth-child(6) { opacity:1;transform:translateY(0);transition-delay:.40s }

/* Shimmer loading skeleton */
.skeleton { background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card2) 50%, var(--bg-card) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 8px; }

/* Gradient text shimmer */
.text-shimmer { background: linear-gradient(120deg, var(--primary) 0%, var(--secondary-light) 40%, var(--primary) 80%); background-size: 200% auto; -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; animation: shimmer 3s linear infinite; }

/* Animated border card */
.card-glow { transition: box-shadow .4s ease, border-color .4s ease, transform .3s ease; }
.card-glow:hover { box-shadow: 0 8px 40px rgba(0,212,255,0.18), 0 0 0 1px rgba(0,212,255,0.25); transform: translateY(-3px); border-color: rgba(0,212,255,0.3); }

/* Ping ring for active status */
.ping-ring { position: relative; }
.ping-ring::after { content:''; position:absolute; inset:0; border-radius:inherit; animation: pingRing 1.5s ease-out infinite; border: 2px solid var(--primary); }

/* Button ripple effect */
.btn-ripple { position: relative; overflow: hidden; }
.btn-ripple .ripple-effect { position:absolute; border-radius:50%; background:rgba(255,255,255,0.25); animation: ripple .6s linear; pointer-events:none; }

/* Navbar scroll effect - enhanced */
.navbar.scrolled { background: rgba(8,13,26,0.97); box-shadow: 0 2px 32px rgba(0,212,255,0.07); backdrop-filter: blur(16px); }

/* Floating particles background for hero */
.hero-particles { position:absolute; inset:0; overflow:hidden; pointer-events:none; }
.hero-particles span { position:absolute; width:2px; height:2px; background:var(--primary); border-radius:50%; opacity:.4; animation: float var(--dur,4s) ease-in-out infinite; animation-delay: var(--delay,0s); }

/* Upload zone pulse when empty */
.upload-zone:not(.has-file) { animation: borderGlow 3s ease-in-out infinite; }

/* Loading spinner - enhanced */
.spinner { width:48px;height:48px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .9s linear infinite;margin:0 auto 20px; }
.spinner-sm { width:20px;height:20px;border-width:2px; }

/* Typing loading dots */
.typing-dots span { display:inline-block; width:7px; height:7px; background:var(--primary); border-radius:50%; margin:0 3px; animation: typingDot 1.2s ease-in-out infinite; }
.typing-dots span:nth-child(2) { animation-delay:.2s; }
.typing-dots span:nth-child(3) { animation-delay:.4s; }

/* Scan line effect for AI loading */
.scan-container { position:relative; overflow:hidden; }
.scan-container::after { content:''; position:absolute; left:0; right:0; height:2px; background:linear-gradient(90deg,transparent,var(--primary),transparent); animation: scanLine 2s linear infinite; opacity:.6; }

/* Stat counter animation */
.stat-value { transition: all .3s ease; }
.stat-card:hover .stat-value { color: var(--primary); transform: scale(1.05); }

/* Metric box hover in analysis result */
.metric-box { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.metric-box:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); border-color: rgba(0,212,255,0.25); }

/* Direction badge pulse */
.direction-buy { animation: glow 2s ease-in-out infinite; }
.direction-sell { animation: glowPurple 2s ease-in-out infinite; }

/* Sidebar link hover transition */
.sidebar-link { transition: all .2s ease; }
.sidebar-link:hover i { transform: translateX(3px); }
.sidebar-link i { transition: transform .2s ease; display:inline-block; }

/* Hero CTA button gradient animation */
.btn-primary { background-size: 200% auto; transition: background-position .4s ease, transform .2s ease, box-shadow .2s ease; }
.btn-primary:hover { background-position: right center; }

/* Gradient animated background blob */
.gradient-blob { position:absolute; border-radius:50%; filter:blur(80px); opacity:.07; animation: float 8s ease-in-out infinite; pointer-events:none; }

/* Feature card reveal */
.feature-card { transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.feature-card:hover { transform: translateY(-6px) scale(1.01); box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 0 1px rgba(0,212,255,0.15); }
.feature-card .feature-icon { transition: transform .4s cubic-bezier(.4,0,.2,1); }
.feature-card:hover .feature-icon { transform: scale(1.12) rotate(-4deg); }

/* Page transition */
body { animation: fadeIn .4s ease; }

/* ---- Utility ---- */
.mt-0{margin-top:0} .mt-8{margin-top:8px} .mt-16{margin-top:16px} .mt-24{margin-top:24px} .mt-32{margin-top:32px} .mt-48{margin-top:48px}
.mb-0{margin-bottom:0} .mb-8{margin-bottom:8px} .mb-16{margin-bottom:16px} .mb-24{margin-bottom:24px}
.flex{display:flex}.flex-center{display:flex;align-items:center;justify-content:center}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}
.w-full{width:100%} .hidden{display:none!important}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; }
    .steps-grid { grid-template-columns: 1fr; }
    .reviews-header { flex-direction: column; align-items: flex-start; gap: 16px; }
    /* Dashboard layout */
    .dash-layout { grid-template-columns: 1fr; }
    .dash-sidebar {
        transform: translateX(-100%);
        transition: transform .3s ease;
        z-index: 200;
        display: flex !important;
        box-shadow: none;
    }
    .dash-sidebar.sidebar-open {
        transform: translateX(0);
        box-shadow: 4px 0 60px rgba(0,0,0,.7);
    }
    .sidebar-overlay {
        display: none; position: fixed; inset: 0;
        background: rgba(0,0,0,.55); z-index: 199;
    }
    .sidebar-overlay.active { display: block; }
    .dash-menu-btn { display: flex !important; }
    .dash-main { margin-left: 0; padding: calc(var(--nav-h) + 24px) 20px 80px; }
    /* Fix navbar sticking under sidebar offset */
    .navbar { left: 0 !important; right: 0 !important; }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions .btn-ghost { display: none; }
    .hamburger { display: flex; }
    .nav-links.mobile-open {
        display: flex; flex-direction: column; position: fixed;
        top: var(--nav-h); left: 0; right: 0; bottom: 0;
        background: var(--bg-card); padding: 24px; gap: 4px; z-index: 999;
    }
    .features-grid { grid-template-columns: 1fr; }
    .analysis-types { grid-template-columns: repeat(2, 1fr); }
    .result-metrics { grid-template-columns: repeat(2, 1fr); }
    .pricing-cards { grid-template-columns: 1fr; max-width: 380px; }
    .cta-inner { padding: 40px 24px; }
    .steps-grid { grid-template-columns: 1fr; }
    .auth-card { padding: 32px 20px; }
}

@media (max-width: 480px) {
    .hero-stats { gap: 20px; }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .analysis-types { grid-template-columns: repeat(3, 1fr); }
}

/* ---- Dashboard mobile sidebar button ---- */
.dash-menu-btn {
    display: none; /* shown via media query on mobile */
    align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 8px;
    border: 1px solid var(--border); background: var(--bg-card);
    color: var(--text); cursor: pointer; font-size: 1rem;
    margin-right: 8px; flex-shrink: 0;
}
.dash-menu-btn:hover { border-color: var(--primary); color: var(--primary); }

/* ---- Admin-specific responsive ---- */
.admin-tabs-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.admin-tabs-wrap::-webkit-scrollbar { display: none; }
/* Admin stats responsive */
@media (max-width: 768px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .admin-stats-row { grid-template-columns: repeat(2, 1fr) !important; }
    .dash-main { padding-left: 16px; padding-right: 16px; }
    /* Dashboard navbar inner padding */
    .navbar > div { padding-left: 16px !important; padding-right: 16px !important; }
    .upload-card { padding: 20px 16px; }
    .cta-inner { padding: 40px 24px; }
    .features-grid { grid-template-columns: 1fr; }
    .analysis-types { grid-template-columns: repeat(2, 1fr); }
    .result-metrics { grid-template-columns: repeat(2, 1fr); }
    .pricing-cards { grid-template-columns: 1fr; max-width: 380px; }
    .auth-card { padding: 32px 20px; }
    .steps-grid { grid-template-columns: 1fr; }
    /* History/journal tables */
    .history-table th, .history-table td { padding: 10px 10px; font-size: .82rem; }
    /* OTP inputs */
    .otp-digit { width: 44px; height: 52px; font-size: 1.3rem; border-radius: 10px; }
    .otp-inputs { gap: 7px; }
}

/* ============================================================
   OTP Verification Page
   ============================================================ */
.otp-inputs {
    display: flex;
    flex-wrap: nowrap;
    gap: clamp(6px, 2vw, 10px);
    justify-content: center;
    align-items: center;
    margin: 24px 0 20px;
    overflow: visible;
}
.otp-digit {
    flex: 0 0 auto;
    width: clamp(40px, 12vw, 54px);
    height: clamp(48px, 14vw, 62px);
    text-align: center;
    font-size: clamp(1.2rem, 5vw, 1.6rem);
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    color: #e2e8f0;
    background: #0a1224;
    border: 2px solid rgba(255,255,255,0.12);
    border-radius: 12px;
    outline: none;
    transition: border-color .2s, box-shadow .2s, transform .15s;
    caret-color: transparent;
}
.otp-digit:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 0 3px rgba(0,212,255,0.18);
    transform: translateY(-2px);
}
.otp-digit.filled {
    border-color: rgba(0,212,255,0.5);
    color: #00d4ff;
}
.otp-digit.shake { animation: shake .3s ease; }
@keyframes shake {
    0%,100% { transform: translateX(0); }
    25%      { transform: translateX(-6px); }
    75%      { transform: translateX(6px); }
}