/* ============================================================
   AlpharvestPro VIP — Terminal Pro Dark Theme
   3-Language: JA / EN / ZH-TW
   ============================================================ */

/* Fonts loaded via <link> in HTML <head> for non-blocking render */

/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
    --bg: #0a0e14;
    --bg-card: #0d1117;
    --bg-elevated: #131721;
    --border: #1c2333;
    --border-hover: #2a3a5c;

    --amber: #e6b450;
    --amber-hover: #ffb454;
    --cyan: #39bae6;
    --cyan-hover: #73d0ff;
    --green: #7fd962;
    --red: #ff3333;
    --orange: #ffb454;
    --purple: #d4a5ff;

    --text: #b3b1ad;
    --text-bright: #e6e1cf;
    --text-dim: #626a73;
    --text-muted: #475261;

    --font-sans: 'Noto Sans JP', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Cascadia Code', monospace;

    --max-width: 1100px;
    --radius: 6px;
    --transition: 0.2s ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--cyan-hover); }

img { max-width: 100%; height: auto; }

/* ============================================================
   TRILINGUAL TOGGLE (JA / EN / ZH-TW)
   Strategy: ONLY hide non-active languages. Never globally hide.
   Body starts with class="lang-en" → JA + ZH hidden by default.
   ============================================================ */
body.lang-en .lang-ja,
body.lang-en .lang-zh { display: none !important; }

body.lang-ja .lang-en,
body.lang-ja .lang-zh { display: none !important; }

body.lang-zh .lang-en,
body.lang-zh .lang-ja { display: none !important; }

/* Block variants */
body.lang-en .lang-ja-block,
body.lang-en .lang-zh-block { display: none !important; }

body.lang-ja .lang-en-block,
body.lang-ja .lang-zh-block { display: none !important; }

body.lang-zh .lang-en-block,
body.lang-zh .lang-ja-block { display: none !important; }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.page-section {
    padding: 60px 0;
}

.section-border {
    border-top: 1px solid var(--border);
}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.1em;
    font-weight: 600;
    color: var(--amber);
    letter-spacing: -0.5px;
}

.nav-logo span { color: var(--text-dim); font-weight: 400; }

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
    list-style: none;
}

.nav-links a {
    color: var(--text);
    font-size: 0.9em;
    transition: color var(--transition);
}

.nav-links a:hover { color: var(--amber); }

.lang-toggle {
    display: flex;
    gap: 2px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.lang-toggle button {
    padding: 4px 10px;
    background: transparent;
    border: none;
    color: var(--text-dim);
    font-size: 12px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all var(--transition);
}

.lang-toggle button.active {
    background: var(--amber);
    color: var(--bg);
    font-weight: 600;
}

.lang-toggle button:hover:not(.active) {
    color: var(--text-bright);
}

/* Mobile nav */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 24px;
    cursor: pointer;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-mono);
    font-size: 2.4em;
    color: var(--amber);
    margin-bottom: 16px;
    letter-spacing: -1px;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.15em;
    color: var(--text);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.hero .cursor {
    animation: blink 1s step-end infinite;
    color: var(--amber);
}

@keyframes blink { 50% { opacity: 0; } }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-size: 0.95em;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--amber);
    color: var(--bg);
    border-color: var(--amber);
}

.btn-primary:hover {
    background: var(--amber-hover);
    color: var(--bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(230, 180, 80, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--cyan);
    border-color: var(--border);
}

.btn-secondary:hover {
    border-color: var(--cyan);
    background: rgba(57, 186, 230, 0.08);
    color: var(--cyan-hover);
}

.btn-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================
   MARKET PREVIEW CARDS
   ============================================================ */
.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.market-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all var(--transition);
}

.market-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.market-card .flag {
    font-size: 2em;
    margin-bottom: 8px;
}

.market-card h3 {
    color: var(--amber);
    font-size: 1.05em;
    margin-bottom: 4px;
}

.market-card .ticker-count {
    color: var(--text-dim);
    font-size: 0.85em;
    font-family: var(--font-mono);
}

.market-card .highlights {
    margin-top: 12px;
    font-size: 0.88em;
    color: var(--text);
    line-height: 1.7;
}

.market-card .stat {
    color: var(--cyan);
    font-weight: 600;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

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

.feature-item .icon {
    font-size: 1.8em;
    margin-bottom: 12px;
}

.feature-item h3 {
    color: var(--text-bright);
    font-size: 1em;
    margin-bottom: 8px;
}

.feature-item p {
    color: var(--text-dim);
    font-size: 0.9em;
    line-height: 1.6;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing-header {
    text-align: center;
    margin-bottom: 40px;
}

.pricing-header h1 {
    font-family: var(--font-mono);
    color: var(--amber);
    font-size: 1.8em;
    margin-bottom: 8px;
}

.pricing-header p {
    color: var(--text-dim);
    font-size: 1em;
}

.billing-toggle {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    align-items: center;
}

.billing-toggle label {
    color: var(--text-dim);
    font-size: 0.9em;
    cursor: pointer;
}

.billing-toggle label.active {
    color: var(--text-bright);
    font-weight: 600;
}

.billing-toggle .toggle-switch {
    width: 44px;
    height: 24px;
    background: var(--border);
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background var(--transition);
}

.billing-toggle .toggle-switch.annual {
    background: var(--amber);
}

.billing-toggle .toggle-switch::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--bg);
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform var(--transition);
}

.billing-toggle .toggle-switch.annual::after {
    transform: translateX(20px);
}

.save-badge {
    background: var(--green);
    color: var(--bg);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
}

.price-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
}

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

.price-card.popular {
    border-color: var(--amber);
    position: relative;
}

.price-card.popular::before {
    content: attr(data-badge);
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--amber);
    color: var(--bg);
    font-size: 11px;
    font-weight: 700;
    padding: 2px 12px;
    border-radius: 10px;
    letter-spacing: 0.5px;
}

.price-card h3 {
    color: var(--text-bright);
    font-size: 1.1em;
    margin-bottom: 4px;
}

.price-card .markets-included {
    color: var(--text-dim);
    font-size: 0.85em;
    margin-bottom: 16px;
}

.price-card .price {
    font-family: var(--font-mono);
    font-size: 2em;
    color: var(--amber);
    font-weight: 700;
    margin-bottom: 4px;
}

.price-card .price .currency {
    font-size: 0.5em;
    color: var(--text-dim);
    vertical-align: super;
}

.price-card .price .period {
    font-size: 0.4em;
    color: var(--text-dim);
    font-weight: 400;
}

.price-card .features-list {
    list-style: none;
    margin: 16px 0;
    flex: 1;
}

.price-card .features-list li {
    padding: 4px 0;
    font-size: 0.88em;
    color: var(--text);
}

.price-card .features-list li::before {
    content: '✓ ';
    color: var(--green);
    font-weight: 700;
}

.price-card .btn {
    width: 100%;
    margin-top: auto;
}

/* ============================================================
   AUTH PAGES (login, account)
   ============================================================ */
.auth-container {
    max-width: 440px;
    margin: 80px auto;
    padding: 0 20px;
}

.auth-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
}

.auth-box h1 {
    font-family: var(--font-mono);
    color: var(--amber);
    font-size: 1.4em;
    margin-bottom: 8px;
}

.auth-box .desc {
    color: var(--text-dim);
    font-size: 0.9em;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
    text-align: left;
}

.form-group label {
    display: block;
    color: var(--text-dim);
    font-size: 0.82em;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
}

.form-group input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-bright);
    font-size: 1em;
    font-family: var(--font-mono);
    transition: border-color var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--amber);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.message {
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.9em;
    margin-bottom: 16px;
}

.message.success { background: rgba(127, 217, 98, 0.1); color: var(--green); border: 1px solid rgba(127, 217, 98, 0.2); }
.message.error { background: rgba(255, 51, 51, 0.1); color: var(--red); border: 1px solid rgba(255, 51, 51, 0.2); }
.message.info { background: rgba(57, 186, 230, 0.1); color: var(--cyan); border: 1px solid rgba(57, 186, 230, 0.2); }

/* ============================================================
   ACCOUNT PAGE
   ============================================================ */
.account-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
}

.account-section h2 {
    color: var(--amber);
    font-size: 1em;
    font-family: var(--font-mono);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.account-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.account-row:last-child { border-bottom: none; }

.account-label {
    color: var(--text-dim);
    font-size: 0.9em;
}

.account-value {
    color: var(--text-bright);
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.market-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-mono);
    margin: 2px;
    text-transform: uppercase;
}

.market-badge.active {
    background: rgba(127, 217, 98, 0.15);
    color: var(--green);
    border: 1px solid rgba(127, 217, 98, 0.3);
}

.market-badge.inactive {
    background: var(--bg);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.active { background: rgba(127, 217, 98, 0.15); color: var(--green); }
.status-badge.canceled { background: rgba(255, 51, 51, 0.15); color: var(--red); }
.status-badge.past_due { background: rgba(255, 180, 84, 0.15); color: var(--orange); }

/* ============================================================
   WELCOME PAGE
   ============================================================ */
.welcome-container {
    max-width: 560px;
    margin: 80px auto;
    padding: 0 20px;
    text-align: center;
}

.welcome-container .checkmark {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(127, 217, 98, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2em;
    color: var(--green);
}

.welcome-container h1 {
    font-family: var(--font-mono);
    color: var(--amber);
    font-size: 1.6em;
    margin-bottom: 12px;
}

.welcome-container p {
    color: var(--text);
    margin-bottom: 24px;
    line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    margin-top: 60px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 20px;
    list-style: none;
}

.footer-links a {
    color: var(--text-dim);
    font-size: 0.85em;
}

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

.footer-copy {
    color: var(--text-muted);
    font-size: 0.8em;
    font-family: var(--font-mono);
}

/* ============================================================
   LOADING / SPINNER
   ============================================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--amber);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
    vertical-align: middle;
}

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

.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 14, 20, 0.8);
    z-index: 200;
    align-items: center;
    justify-content: center;
}

.loading-overlay.active { display: flex; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .hero h1 { font-size: 1.6em; }
    .hero .subtitle { font-size: 1em; }
    .page-section { padding: 40px 0; }

    .nav-links { display: none; }
    .nav-hamburger { display: block; }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 16px 20px;
        gap: 12px;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .market-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .auth-box { padding: 28px 20px; }

    .account-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .market-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.3em; }
}
