/* ═══════════════════════════════════════════════════════════
   QuantRead Ticker Grader — Premium Design System
   ═══════════════════════════════════════════════════════════ */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --border: #23233a;
    --border-glow: #3b3bff20;

    --text-primary: #e8e8f0;
    --text-secondary: #8888a8;
    --text-muted: #55556a;

    --accent: #6366f1;
    --accent-bright: #818cf8;
    --accent-glow: #6366f140;
    --green: #22c55e;
    --green-dim: #22c55e30;
    --red: #ef4444;
    --red-dim: #ef444430;
    --yellow: #eab308;
    --yellow-dim: #eab30830;
    --cyan: #06b6d4;

    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ─── Background Effects ─────────────────────────────────── */

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}
.bg-glow-1 {
    top: -200px;
    right: -100px;
    background: var(--accent);
}
.bg-glow-2 {
    bottom: -200px;
    left: -100px;
    background: #6d28d9;
}

/* ─── Nav ────────────────────────────────────────────────── */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

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

.nav-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo-q {
    background: linear-gradient(135deg, var(--accent), var(--accent-bright));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-link:hover { color: var(--text-primary); }

.nav-cta {
    background: var(--accent);
    color: white;
    padding: 8px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}
.nav-cta:hover {
    background: var(--accent-bright);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

/* ─── Hero ───────────────────────────────────────────────── */

.hero {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 140px 24px 40px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-glow);
    color: var(--accent-bright);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    border-radius: 100px;
    border: 1px solid var(--accent);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 16px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-bright), var(--cyan), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

/* ─── Search ─────────────────────────────────────────────── */

.search-container {
    max-width: 560px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 6px 6px 6px 20px;
    transition: all 0.3s;
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow), 0 8px 40px rgba(0,0,0,0.4);
}

.search-icon {
    color: var(--text-muted);
    display: flex;
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--mono);
    font-size: 18px;
    font-weight: 600;
    padding: 12px 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.search-input::placeholder {
    text-transform: none;
    font-family: var(--font);
    font-weight: 400;
    font-size: 15px;
    letter-spacing: 0;
    color: var(--text-muted);
}

.search-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 14px;
    font-family: var(--font);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.search-btn:hover {
    background: var(--accent-bright);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

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

.btn-loader {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.search-btn.loading .btn-text { display: none; }
.search-btn.loading .btn-loader { display: block; }

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

.popular-tickers {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.popular-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.ticker-chip {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 4px 14px;
    border-radius: 100px;
    font-family: var(--mono);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.5px;
}
.ticker-chip:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    color: var(--accent-bright);
}

/* ─── Error ──────────────────────────────────────────────── */

.error-banner {
    display: none;
    max-width: 560px;
    margin: 20px auto 0;
    padding: 12px 20px;
    background: var(--red-dim);
    border: 1px solid var(--red);
    border-radius: var(--radius);
    color: var(--red);
    font-size: 14px;
    text-align: center;
    position: relative;
    z-index: 1;
}

/* ─── Results ────────────────────────────────────────────── */

.results-section {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 40px auto 0;
    padding: 0 24px 80px;
    animation: fadeUp 0.6s ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Result Header */
.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.result-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.ticker-badge {
    background: linear-gradient(135deg, var(--accent), var(--accent-bright));
    color: white;
    font-family: var(--mono);
    font-size: 22px;
    font-weight: 800;
    padding: 10px 18px;
    border-radius: var(--radius);
    letter-spacing: 1px;
}

.company-info h2 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.3;
}

.company-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.meta-dot {
    color: var(--text-muted);
}

.price-display {
    text-align: right;
}

.price-value {
    display: block;
    font-family: var(--mono);
    font-size: 28px;
    font-weight: 700;
}

.price-change {
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 600;
}

.price-change.positive { color: var(--green); }
.price-change.negative { color: var(--red); }

/* Grade Card */
.grade-card {
    display: flex;
    align-items: center;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    justify-content: center;
}

.grade-ring-container {
    position: relative;
    width: 140px;
    height: 140px;
    flex-shrink: 0;
}

.grade-ring {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.grade-ring-bg {
    fill: none;
    stroke: var(--border);
    stroke-width: 8;
}

.grade-ring-fill {
    fill: none;
    stroke: var(--accent);
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dashoffset 1.5s ease-out, stroke 0.5s;
}

.grade-inner {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.grade-letter {
    font-size: 48px;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--accent-bright), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.grade-score {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}

.grade-details {
    flex: 1;
    min-width: 250px;
}

.grade-verdict {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.grade-explain {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Grade Colors */
.grade-a .grade-ring-fill { stroke: var(--green); }
.grade-a .grade-letter { -webkit-text-fill-color: var(--green); }
.grade-b .grade-ring-fill { stroke: #22d3ee; }
.grade-b .grade-letter { -webkit-text-fill-color: #22d3ee; }
.grade-c .grade-ring-fill { stroke: var(--yellow); }
.grade-c .grade-letter { -webkit-text-fill-color: var(--yellow); }
.grade-d .grade-ring-fill { stroke: #f97316; }
.grade-d .grade-letter { -webkit-text-fill-color: #f97316; }
.grade-f .grade-ring-fill { stroke: var(--red); }
.grade-f .grade-letter { -webkit-text-fill-color: var(--red); }

/* Indicator Grid */
.indicators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 16px;
    margin-bottom: 40px;
}

.indicator-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: all 0.3s;
}

.indicator-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.ind-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.ind-icon { font-size: 18px; }

.ind-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    flex: 1;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ind-badge {
    padding: 3px 10px;
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.ind-badge.bull { background: var(--green-dim); color: var(--green); }
.ind-badge.bear { background: var(--red-dim); color: var(--red); }
.ind-badge.neutral { background: var(--yellow-dim); color: var(--yellow); }
.ind-badge.hot { background: var(--green-dim); color: var(--green); }
.ind-badge.cold { background: var(--red-dim); color: var(--red); }

.ind-values {
    margin-bottom: 14px;
}

.ind-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 13px;
}

.ind-row span:first-child {
    color: var(--text-muted);
}

.ind-row span:last-child {
    font-family: var(--mono);
    font-weight: 600;
    color: var(--text-primary);
}

.ind-bar-container {
    background: var(--border);
    border-radius: 4px;
    height: 4px;
    overflow: hidden;
}

.ind-bar {
    height: 100%;
    border-radius: 4px;
    background: var(--accent);
    transition: width 1.2s ease-out;
}

.ind-bar.green { background: var(--green); }
.ind-bar.red { background: var(--red); }
.ind-bar.yellow { background: var(--yellow); }

/* ─── CTA ────────────────────────────────────────────────── */

.cta-section {
    text-align: center;
    padding: 60px 20px;
}

.cta-divider {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    margin: 0 auto 40px;
}

.cta-title {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
    line-height: 1.2;
}

.cta-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.cta-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 24px;
    margin-bottom: 32px;
}

.cta-feature {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--accent), var(--accent-bright));
    color: white;
    padding: 16px 40px;
    border-radius: var(--radius);
    text-decoration: none;
    font-size: 17px;
    font-weight: 700;
    transition: all 0.3s;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 40px var(--accent-glow);
}

.cta-guarantee {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
}

/* ─── Footer ─────────────────────────────────────────────── */

.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 24px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
}

.footer a {
    color: var(--accent-bright);
    text-decoration: none;
}

/* ─── Responsive ─────────────────────────────────────────── */

@media (max-width: 640px) {
    .result-header {
        flex-direction: column;
        text-align: center;
    }
    .result-header-left {
        flex-direction: column;
    }
    .price-display {
        text-align: center;
    }
    .grade-card {
        flex-direction: column;
        text-align: center;
    }
    .indicators-grid {
        grid-template-columns: 1fr;
    }
    .nav-link { display: none; }
    .footer-inner {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}