/* ============================================
   SpeedPulse — Complete Design System
   ============================================ */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #080f1a;
    --bg2: #0d1929;
    --bg3: #111f33;
    --border: rgba(79, 159, 255, 0.12);
    --border-hover: rgba(79, 159, 255, 0.3);
    --blue: #4F9FFF;
    --teal: #00D4AA;
    --purple: #A78BFA;
    --amber: #F59E0B;
    --text: #e8f0fe;
    --muted: #7a9bb5;
    --card-bg: rgba(255,255,255,0.03);
    --radius: 14px;
    --radius-sm: 8px;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ── SCROLLBAR ─────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ── NAVBAR ────────────────────────────────── */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(8, 15, 26, 0.85);
    border-bottom: 1px solid var(--border);
    transition: border-color 0.3s;
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    background: rgba(79, 159, 255, 0.1);
    border: 1px solid rgba(79, 159, 255, 0.2);
    border-radius: 10px;
}

.brand-icon.small { width: 30px; height: 30px; border-radius: 8px; }

.nav-links {
    display: flex;
    list-style: none;
    gap: 6px;
}

.nav-links a {
    text-decoration: none;
    color: var(--muted);
    font-size: 14px;
    font-weight: 500;
    padding: 7px 16px;
    border-radius: 8px;
    transition: all 0.2s;
    letter-spacing: 0.2px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: rgba(255,255,255,0.06);
}

.nav-links a.active { color: var(--blue); }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    width: 22px; height: 2px;
    background: var(--muted);
    border-radius: 2px;
    transition: all 0.2s;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    padding: 12px 24px 16px;
    border-top: 1px solid var(--border);
    gap: 4px;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
    text-decoration: none;
    color: var(--muted);
    font-size: 15px;
    padding: 10px 12px;
    border-radius: 8px;
    transition: all 0.2s;
}

.mobile-menu a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

/* ── HERO ──────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 24px 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(79,159,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79,159,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.12;
}

.orb-1 {
    width: 600px; height: 600px;
    background: var(--blue);
    top: -150px; left: -150px;
}

.orb-2 {
    width: 500px; height: 500px;
    background: var(--teal);
    bottom: -100px; right: -100px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
    width: 100%;
    text-align: center;
}

.tagline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(79, 159, 255, 0.1);
    border: 1px solid rgba(79, 159, 255, 0.2);
    color: var(--blue);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.hero-content h1 {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 700;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 16px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--blue), var(--teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--muted);
    font-size: 17px;
    line-height: 1.6;
    margin-bottom: 44px;
    max-width: 460px;
    margin-left: auto;
    margin-right: auto;
}

/* ── SPEEDOMETER ───────────────────────────── */
.speedometer-wrap {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.speedometer {
    position: relative;
    background: rgba(13, 25, 41, 0.8);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px 32px 12px;
    backdrop-filter: blur(20px);
}

.gauge-svg {
    width: 280px;
    height: auto;
    display: block;
}

.phase-label {
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--muted);
    letter-spacing: 0.5px;
    margin-top: 4px;
    height: 20px;
    font-family: 'JetBrains Mono', monospace;
    transition: color 0.3s;
}

.phase-label.active { color: var(--blue); }

/* ── TEST BUTTON ───────────────────────────── */
.btn-test {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--blue), #3a86ff);
    color: #fff;
    border: none;
    border-radius: 14px;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Space Grotesk', sans-serif;
    cursor: pointer;
    transition: all 0.25s;
    letter-spacing: 0.2px;
    margin-bottom: 48px;
    box-shadow: 0 8px 32px rgba(79, 159, 255, 0.25);
}

.btn-test:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(79, 159, 255, 0.4);
}

.btn-test:active { transform: translateY(0); }

.btn-test:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-test .btn-icon { display: flex; align-items: center; }

/* ── RESULTS GRID ──────────────────────────── */
.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.result-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: left;
    transition: border-color 0.3s;
}

.result-card:hover { border-color: var(--border-hover); }

.result-icon {
    width: 40px; height: 40px;
    background: rgba(79, 159, 255, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.result-info {
    display: flex;
    align-items: baseline;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.result-label {
    display: block;
    width: 100%;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 4px;
}

.result-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: -1px;
    line-height: 1;
}

.result-value.small { font-size: 18px; letter-spacing: -0.5px; }

.result-unit {
    font-size: 13px;
    color: var(--muted);
    font-weight: 500;
}

.result-bar {
    height: 4px;
    background: rgba(255,255,255,0.06);
    border-radius: 2px;
    overflow: hidden;
}

.result-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--blue);
    border-radius: 2px;
    transition: width 0.8s ease;
}

.result-bar-fill.teal { background: var(--teal); }
.result-bar-fill.purple { background: var(--purple); }
.result-bar-fill.amber { background: var(--amber); }

/* ── HISTORY ───────────────────────────────── */
.history-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: left;
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.history-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

.clear-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 12px;
    font-family: 'Space Grotesk', sans-serif;
    padding: 4px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.clear-btn:hover { border-color: var(--border-hover); color: var(--text); }

.history-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 80px;
}

.history-bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    flex: 1;
}

.history-bars {
    display: flex;
    gap: 2px;
    align-items: flex-end;
    height: 60px;
}

.h-bar {
    width: 6px;
    border-radius: 3px 3px 0 0;
    min-height: 4px;
    transition: height 0.5s ease;
}

.h-bar.dl { background: var(--teal); }
.h-bar.ul { background: var(--purple); }

.history-time {
    font-size: 9px;
    color: var(--muted);
    font-family: 'JetBrains Mono', monospace;
}

/* ── FEATURES SECTION ──────────────────────── */
.features-section {
    padding: 100px 24px;
    border-top: 1px solid var(--border);
}

.features-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.section-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 16px;
}

.features-inner h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -1px;
    max-width: 500px;
    margin-bottom: 56px;
    line-height: 1.2;
}

.features-inner h2 em { font-style: normal; color: var(--muted); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all 0.25s;
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
}

.feat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.feat-icon.blue { background: rgba(79,159,255,0.1); color: var(--blue); }
.feat-icon.teal { background: rgba(0,212,170,0.1); color: var(--teal); }
.feat-icon.purple { background: rgba(167,139,250,0.1); color: var(--purple); }
.feat-icon.amber { background: rgba(245,158,11,0.1); color: var(--amber); }

.feature-card h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
}

/* ── PAGE HERO (about, apps) ───────────────── */
.page-hero {
    padding: 120px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 60% at 50% 0%, rgba(79,159,255,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.page-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 0 auto;
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 16px;
    line-height: 1.15;
}

.page-hero p {
    color: var(--muted);
    font-size: 17px;
    line-height: 1.6;
}

/* ── MISSION ───────────────────────────────── */
.mission-section {
    padding: 80px 24px;
    border-top: 1px solid var(--border);
}

.mission-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.mission-text h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.8px;
    margin-bottom: 20px;
}

.mission-text p {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 14px;
}

.mission-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-num {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--blue);
    letter-spacing: -1.5px;
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 14px;
    color: var(--muted);
}

/* ── FAQ ───────────────────────────────────── */
.faq-section {
    padding: 80px 24px;
    border-top: 1px solid var(--border);
}

.faq-inner {
    max-width: 720px;
    margin: 0 auto;
}

.faq-inner h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.8px;
    margin-bottom: 40px;
}

.faq-list { display: flex; flex-direction: column; gap: 12px; }

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s;
}

.faq-item:hover { border-color: var(--border-hover); }

.faq-q {
    width: 100%;
    background: none;
    border: none;
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    font-weight: 500;
    text-align: left;
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.faq-q:hover { color: var(--blue); }

.faq-arrow {
    color: var(--muted);
    flex-shrink: 0;
    transition: transform 0.25s;
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-a {
    display: none;
    padding: 0 24px 20px;
    border-top: 1px solid var(--border);
}

.faq-a p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.7;
    padding-top: 16px;
}

.faq-item.open .faq-a { display: block; }

/* ── CTA ───────────────────────────────────── */
.cta-section {
    padding: 100px 24px;
    text-align: center;
    border-top: 1px solid var(--border);
}

.cta-inner { max-width: 560px; margin: 0 auto; }

.cta-inner h2 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 12px;
}

.cta-inner p { color: var(--muted); font-size: 16px; margin-bottom: 32px; }

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--blue), #3a86ff);
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.25s;
    box-shadow: 0 6px 24px rgba(79,159,255,0.25);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 36px rgba(79,159,255,0.4);
}

/* ── APPS PAGE ─────────────────────────────── */
.platforms-section {
    padding: 60px 24px 100px;
}

.platforms-inner {
    max-width: 960px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.platform-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
    transition: all 0.25s;
}

.platform-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }

.platform-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.platform-icon {
    width: 56px; height: 56px;
    background: rgba(255,255,255,0.04);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.platform-header h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.platform-badge {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: #78C257;
    background: rgba(120, 194, 87, 0.1);
    padding: 3px 10px;
    border-radius: 100px;
    border: 1px solid rgba(120, 194, 87, 0.2);
}

.platform-badge.ios-badge {
    color: var(--blue);
    background: rgba(79, 159, 255, 0.1);
    border-color: rgba(79, 159, 255, 0.2);
}

.platform-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 32px;
}

.platform-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--muted);
}

.btn-platform {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    font-family: 'Space Grotesk', sans-serif;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-platform.android {
    background: rgba(120, 194, 87, 0.12);
    color: #78C257;
    border: 1px solid rgba(120, 194, 87, 0.2);
}

.btn-platform.android:hover { background: rgba(120, 194, 87, 0.2); }

.btn-platform.ios {
    background: rgba(79, 159, 255, 0.12);
    color: var(--blue);
    border: 1px solid rgba(79, 159, 255, 0.2);
}

.btn-platform.ios:hover { background: rgba(79, 159, 255, 0.2); }

/* ── COMPARE TABLE ─────────────────────────── */
.compare-section {
    padding: 80px 24px;
    border-top: 1px solid var(--border);
}

.compare-inner {
    max-width: 720px;
    margin: 0 auto;
}

.compare-inner h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.8px;
    margin-bottom: 40px;
}

.compare-table-wrap { overflow-x: auto; }

.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.compare-table th {
    padding: 14px 20px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
}

.compare-table th:not(:first-child) { text-align: center; }

.compare-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.compare-table td:not(:first-child) {
    text-align: center;
    color: var(--muted);
}

.compare-table tr:hover td { background: rgba(255,255,255,0.02); }

/* ── FOOTER ────────────────────────────────── */
footer {
    border-top: 1px solid var(--border);
    padding: 60px 24px 0;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 60px;
    padding-bottom: 48px;
}

.footer-brand {
    max-width: 260px;
}

.footer-brand .brand-icon {
    margin-bottom: 12px;
}

.footer-brand span {
    display: block;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col h5 {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 4px;
}

.footer-col a {
    text-decoration: none;
    font-size: 14px;
    color: var(--muted);
    transition: color 0.2s;
}

.footer-col a:hover { color: var(--text); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--muted);
}

/* ── ANIMATIONS ────────────────────────────── */
@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.3); opacity: 0; }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.testing .btn-text { display: none; }

/* ── RESPONSIVE ────────────────────────────── */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }

    .hero { padding: 90px 20px 60px; }
    .gauge-svg { width: 220px; }
    .results-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .result-value { font-size: 22px; }

    .mission-inner { grid-template-columns: 1fr; gap: 40px; }
    .platforms-inner { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; gap: 40px; }
    .footer-links { gap: 32px; }
}

@media (max-width: 480px) {
    .results-grid { grid-template-columns: 1fr; }
    .compare-table th, .compare-table td { padding: 10px 14px; }
}