/* ============================================================
   Design System: Emerald Trust Gaming UI
   Project: 9777-bdt.id
   ============================================================ */

:root {
    --color-primary: #10b981;
    --color-primary-dark: #059669;
    --color-primary-soft: rgba(16,185,129,.12);
    --color-secondary: #6366f1;
    --color-accent: #f59e0b;
    --color-bg: #0f172a;
    --color-bg-soft: #1e293b;
    --color-surface: #1e293b;
    --color-surface-strong: #334155;
    --color-card: #1e293b;
    --color-card-alt: #0f172a;
    --color-border: #334155;
    --color-border-strong: #475569;
    --color-text: #e2e8f0;
    --color-text-soft: #94a3b8;
    --color-text-muted: #64748b;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-footer-bg: #020617;
    --color-footer-text: #94a3b8;

    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    --gradient-button: linear-gradient(135deg, #10b981, #059669);
    --gradient-button-hover: linear-gradient(135deg, #059669, #047857);
    --gradient-card-border: linear-gradient(135deg, #10b981 0%, #6366f1 100%);
    --gradient-cta: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);

    --shadow-header: 0 2px 20px rgba(0,0,0,.3);
    --shadow-card: 0 4px 24px rgba(0,0,0,.2);
    --shadow-card-hover: 0 8px 40px rgba(16,185,129,.15);
    --shadow-button: 0 4px 14px rgba(16,185,129,.3);
    --shadow-soft: 0 2px 12px rgba(0,0,0,.15);

    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-pill: 9999px;

    --font-base: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Noto Sans Bengali", sans-serif;
    --fs-h1: clamp(1.8rem, 4vw, 2.8rem);
    --fs-h2: clamp(1.4rem, 3vw, 2rem);
    --fs-h3: clamp(1.1rem, 2vw, 1.4rem);
    --fs-body: 1rem;
    --fs-small: 0.875rem;
    --lh-body: 1.8;
    --lh-heading: 1.3;

    --container-max: 1200px;
    --container-wide: 1100px;
    --container-narrow: 860px;
    --section-y: clamp(48px, 8vw, 80px);
    --gap-sm: 12px;
    --gap-md: 20px;
    --gap-lg: 32px;
    --header-h: 72px;

    --motion-fast: .15s;
    --motion-normal: .3s;
    --ease-out: cubic-bezier(.25,.46,.45,.94);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-base); background: var(--color-bg); color: var(--color-text); line-height: var(--lh-body); margin: 0; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
a { color: var(--color-primary); text-decoration: none; transition: color var(--motion-fast); }
a:hover { color: var(--color-accent); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

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

/* Content Section */
.content-section { padding: var(--section-y) 0; }
.content-section.alt-bg { background: var(--color-bg-soft); }
.content-section h2 { font-size: var(--fs-h2); line-height: var(--lh-heading); margin-bottom: 20px; color: #fff; }
.content-section h3 { font-size: var(--fs-h3); line-height: var(--lh-heading); margin: 28px 0 12px; color: #fff; }
.content-section p { margin-bottom: 18px; color: var(--color-text); line-height: var(--lh-body); }
.content-section img { margin: 24px 0; border-radius: var(--radius-md); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(15,23,42,.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow-header); }
.header-inner { width: 100%; max-width: none; padding-left: clamp(10px, 1.2vw, 20px); padding-right: clamp(10px, 1.2vw, 20px); min-height: var(--header-h); display: flex; align-items: center; gap: clamp(10px, 1vw, 18px); }
.brand-wrap { flex: 0 0 auto; margin-right: clamp(4px, .8vw, 14px); }
.site-logo { display: block; width: auto; height: clamp(32px, 3vw, 42px); max-width: clamp(118px, 10vw, 168px); object-fit: contain; }
.primary-nav { flex: 1 1 auto; min-width: 0; display: flex; align-items: center; justify-content: center; flex-wrap: nowrap; gap: clamp(6px, .72vw, 14px); white-space: nowrap; overflow: visible; }
.primary-nav a { flex: 0 1 auto; min-width: 0; padding: 9px clamp(6px, .65vw, 12px); font-size: clamp(13px, .84vw, 15px); line-height: 1; white-space: nowrap; color: var(--color-text-soft); text-decoration: none; transition: color var(--motion-fast), background var(--motion-fast); border-radius: var(--radius-sm); }
.primary-nav a:hover, .primary-nav a.active { color: #fff; background: var(--color-primary-soft); }
.header-actions { flex: 0 0 auto; margin-left: auto; display: flex; align-items: center; justify-content: flex-end; gap: clamp(6px, .6vw, 10px); white-space: nowrap; }
.header-actions .btn { min-height: 40px; padding: 8px clamp(12px, 1.2vw, 18px); display: inline-flex; align-items: center; justify-content: center; white-space: nowrap; border-radius: var(--radius-pill); font-size: clamp(13px, .84vw, 15px); font-weight: 600; text-decoration: none; border: none; cursor: pointer; transition: all var(--motion-fast); }
.btn-login { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary) !important; }
.btn-login:hover { background: var(--color-primary-soft); color: #fff; }
.btn-register { background: var(--gradient-button); color: #fff; box-shadow: var(--shadow-button); }
.btn-register:hover { background: var(--gradient-button-hover); transform: translateY(-1px); }
.nav-toggle { display: none; flex: 0 0 40px; width: 40px; height: 40px; align-items: center; justify-content: center; background: none; border: 1px solid var(--color-border); border-radius: var(--radius-sm); cursor: pointer; padding: 0; flex-direction: column; gap: 5px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--color-text); transition: all var(--motion-fast); }

/* Mobile Menu */
.mobile-menu { display: none; position: fixed; top: var(--header-h); left: 0; right: 0; background: var(--color-bg-soft); border-top: 1px solid var(--color-border); max-height: calc(100vh - var(--header-h)); overflow-y: auto; z-index: 999; }
.mobile-menu.is-open { display: block; }
.mobile-nav { display: flex; flex-direction: column; padding: 16px; gap: 4px; }
.mobile-nav a { padding: 14px 16px; color: var(--color-text); font-size: 16px; border-radius: var(--radius-sm); transition: background var(--motion-fast); text-decoration: none; }
.mobile-nav a:hover { background: var(--color-primary-soft); color: #fff; }

@media (max-width: 1180px) {
    .site-header .header-inner { width: 100%; max-width: none; padding-left: clamp(8px, 2.4vw, 14px); padding-right: clamp(8px, 2.4vw, 14px); justify-content: flex-start; gap: clamp(6px, 1.8vw, 10px); }
    .brand-wrap { flex: 0 1 auto; margin-right: 0; }
    .site-logo { height: clamp(30px, 8vw, 40px); max-width: clamp(104px, 27vw, 138px); }
    .primary-nav { display: none; }
    .header-actions { margin-left: auto; flex: 0 0 auto; gap: clamp(5px, 1.6vw, 8px); }
    .header-actions .btn { min-height: 40px; padding-inline: clamp(10px, 2.6vw, 14px); font-size: clamp(12px, 3.2vw, 14px); }
    .nav-toggle { display: inline-flex; flex: 0 0 40px; width: 40px; height: 40px; margin-left: 2px; }
}

@media (max-width: 375px) {
    .site-header .header-inner { padding-left: 8px; padding-right: 8px; gap: 6px; }
    .site-logo { max-width: 104px; }
    .header-actions .btn { min-height: 38px; padding-inline: 9px; font-size: 12px; }
    .nav-toggle { flex-basis: 38px; width: 38px; height: 38px; }
}

/* ============================================================
   HERO
   ============================================================ */
.home-hero { background: var(--gradient-hero); padding: clamp(60px, 10vw, 120px) 20px; text-align: center; border-bottom: 1px solid var(--color-border); }
.hero-content { max-width: var(--container-narrow); margin: 0 auto; }
.hero-content h1 { font-size: var(--fs-h1); line-height: var(--lh-heading); color: #fff; margin-bottom: 16px; }
.hero-lead { font-size: 1.15rem; color: var(--color-text-soft); margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 24px; }
.hero-trust { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; color: var(--color-text-muted); font-size: var(--fs-small); }
.hero-trust span { display: flex; align-items: center; gap: 6px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: var(--radius-pill); font-weight: 600; font-size: var(--fs-body); text-decoration: none; border: none; cursor: pointer; transition: all var(--motion-fast); min-height: 42px; white-space: nowrap; }
.btn-primary, .btn-primary-lg { background: var(--gradient-button); color: #fff; box-shadow: var(--shadow-button); }
.btn-primary:hover, .btn-primary-lg:hover { background: var(--gradient-button-hover); transform: translateY(-1px); color: #fff; }
.btn-primary-lg { padding: 14px 36px; font-size: 1.05rem; }
.btn-secondary { background: var(--color-surface-strong); color: var(--color-text); }
.btn-secondary:hover { background: var(--color-border-strong); color: #fff; }
.btn-outline-lg { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); padding: 12px 32px; font-size: 1.05rem; }
.btn-outline-lg:hover { background: var(--color-primary-soft); color: #fff; }
.btn-full { width: 100%; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; margin: 28px 0; }

/* ============================================================
   CARDS
   ============================================================ */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-lg); }
.feature-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px 24px; transition: all var(--motion-normal) var(--ease-out); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: var(--color-primary); }
.feature-icon { font-size: 2rem; color: var(--color-primary); margin-bottom: 14px; }
.feature-card h3 { font-size: var(--fs-h3); margin-bottom: 8px; color: #fff; }

.game-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); margin: 28px 0; }
.game-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; text-decoration: none; transition: all var(--motion-normal) var(--ease-out); display: block; }
.game-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: var(--color-secondary); }
.game-card h3 { color: #fff; font-size: var(--fs-h3); margin-bottom: 6px; }
.game-card p { color: var(--color-text-soft); font-size: var(--fs-small); margin: 0; }

.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); margin: 28px 0; }
.review-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; }
.review-stars { color: var(--color-accent); font-size: 1.2rem; margin-bottom: 12px; }
.review-author { color: var(--color-text-muted); font-size: var(--fs-small); margin-top: 12px; }

.bonus-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-lg); margin: 28px 0; }
.bonus-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: 32px 24px; text-align: center; position: relative; transition: all var(--motion-normal); }
.bonus-card.highlight { border-color: var(--color-primary); box-shadow: 0 0 30px rgba(16,185,129,.1); }
.bonus-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--gradient-button); color: #fff; padding: 4px 18px; border-radius: var(--radius-pill); font-size: var(--fs-small); font-weight: 600; }
.bonus-amount { font-size: 2.5rem; font-weight: 700; color: var(--color-primary); margin: 14px 0; }
.bonus-card ul { list-style: none; padding: 0; margin: 14px 0; text-align: left; }
.bonus-card ul li { padding: 6px 0; border-bottom: 1px solid var(--color-border); color: var(--color-text-soft); font-size: var(--fs-small); }
.bonus-card ul li:last-child { border: none; }

.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-lg); margin: 28px 0; }
.value-card { background: var(--color-card); border-left: 4px solid var(--color-primary); padding: 24px; border-radius: 0 var(--radius-md) var(--radius-md) 0; }

.info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap-md); margin: 28px 0; }
.info-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 20px; }
.info-card h3 { font-size: 1.1rem; color: #fff; margin-bottom: 8px; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap-md); margin: 28px 0; }
.stat-box { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px; text-align: center; }
.stat-number { font-size: 2rem; font-weight: 700; color: var(--color-primary); }
.stat-label { color: var(--color-text-soft); margin-top: 6px; }

.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-md); margin: 20px 0; }
.related-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 16px 20px; color: var(--color-text); text-decoration: none; transition: all var(--motion-fast); display: block; }
.related-card:hover { border-color: var(--color-primary); color: #fff; }

/* ============================================================
   STEP FLOW
   ============================================================ */
.step-flow { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--gap-lg); margin: 28px 0; }
.step-item { text-align: center; }
.step-number { width: 48px; height: 48px; background: var(--gradient-button); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; margin: 0 auto 14px; }
.step-list .step-item { display: flex; gap: 20px; text-align: left; margin-bottom: 20px; }
.step-list .step-number { margin: 0; flex-shrink: 0; }
.step-content { flex: 1; }

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { margin: 20px 0; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 8px; overflow: hidden; }
.faq-toggle { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; background: var(--color-card); border: none; color: var(--color-text); font-size: var(--fs-body); cursor: pointer; text-align: left; transition: background var(--motion-fast); font-family: var(--font-base); }
.faq-toggle:hover { background: var(--color-surface-strong); }
.faq-toggle span { flex: 1; }
.faq-icon { font-size: 1.4rem; color: var(--color-primary); font-style: normal; transition: transform var(--motion-fast); }
.faq-item.is-open .faq-icon { transform: rotate(45deg); }
.faq-answer { display: none; padding: 0 20px 16px; background: var(--color-card); }
.faq-item.is-open .faq-answer { display: block; }
.faq-answer p { margin-bottom: 8px; color: var(--color-text-soft); }

.faq-cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap-md); }
.faq-cat-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; text-align: center; }
.faq-cat-card i { font-size: 2rem; color: var(--color-primary); margin-bottom: 10px; }
.faq-cat-card h3 { margin-bottom: 4px; color: #fff; }
.faq-cat-card p { color: var(--color-text-soft); font-size: var(--fs-small); margin: 0; }

/* ============================================================
   FORMS / AUTH
   ============================================================ */
.auth-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); align-items: start; }
.auth-form-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-xl); padding: 36px; }
.auth-form-card h2 { margin-bottom: 8px; }
.auth-form { margin-top: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; color: var(--color-text-soft); font-size: var(--fs-small); font-weight: 600; }
.form-group input { width: 100%; padding: 12px 16px; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text); font-size: var(--fs-body); font-family: var(--font-base); transition: border-color var(--motion-fast); }
.form-group input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }
.form-note { text-align: center; color: var(--color-text-muted); font-size: var(--fs-small); margin-top: 14px; }
.auth-info-panel { display: flex; flex-direction: column; gap: var(--gap-md); }
.auth-trust-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; }
.auth-trust-card h3 { color: #fff; margin-bottom: 12px; }
.benefit-list { list-style: none; padding: 0; }
.benefit-list li { padding: 8px 0; border-bottom: 1px solid var(--color-border); color: var(--color-text-soft); }
.benefit-list li:last-child { border: none; }
.auth-security-note { background: var(--color-card); border: 1px solid var(--color-primary); border-radius: var(--radius-lg); padding: 20px; }
.auth-security-note h3 { color: var(--color-primary); margin-bottom: 8px; font-size: 1rem; }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb-nav { margin-bottom: 16px; }
.breadcrumb-list { display: flex; align-items: center; gap: 8px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; font-size: var(--fs-small); }
.breadcrumb-item { color: var(--color-text-muted); }
.breadcrumb-item a { color: var(--color-text-soft); }
.breadcrumb-item + .breadcrumb-item::before { content: "/"; margin-right: 8px; color: var(--color-text-muted); }

/* ============================================================
   PAGE TITLE AREAS
   ============================================================ */
.page-title-area, .about-title-area, .policy-title-area, .faq-title-area,
.register-title-area, .login-title-area { padding: clamp(40px, 6vw, 80px) 0 clamp(24px, 4vw, 40px); background: var(--color-bg-soft); border-bottom: 1px solid var(--color-border); }
.page-title-area h1, .about-title-area h1, .policy-title-area h1, .faq-title-area h1,
.register-title-area h1, .login-title-area h1 { font-size: var(--fs-h1); line-height: var(--lh-heading); color: #fff; margin-bottom: 12px; }
.page-lead { font-size: 1.1rem; color: var(--color-text-soft); margin-bottom: 0; }
.policy-updated { color: var(--color-text-muted); font-size: var(--fs-small); margin-top: 8px; }

/* ============================================================
   POLICY CONTENT
   ============================================================ */
.policy-content h2 { border-left: 4px solid var(--color-primary); padding-left: 16px; }
.warning-box { background: rgba(239,68,68,.08); border: 1px solid rgba(239,68,68,.3); border-radius: var(--radius-md); padding: 24px; margin: 20px 0; }
.warning-box h3 { color: var(--color-danger); margin-bottom: 12px; }
.warning-box ul, .tips-list { padding-left: 20px; }
.warning-box li, .tips-list li { margin-bottom: 8px; color: var(--color-text-soft); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--color-footer-bg); border-top: 1px solid var(--color-border); padding: clamp(40px, 6vw, 64px) 0 24px; }
.footer-inner { max-width: var(--container-wide); margin: 0 auto; padding: 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: var(--gap-lg); }
.footer-col h4 { color: #fff; margin-bottom: 14px; font-size: 1rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--color-footer-text); font-size: var(--fs-small); transition: color var(--motion-fast); text-decoration: none; }
.footer-col ul li a:hover { color: var(--color-primary); }
.footer-brand p { color: var(--color-footer-text); font-size: var(--fs-small); line-height: 1.7; }
.footer-logo { margin-bottom: 14px; border-radius: 0; }
.footer-email { color: var(--color-text-muted) !important; }
.footer-bottom { text-align: center; padding-top: 24px; margin-top: 32px; border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: var(--fs-small); }

/* ============================================================
   CTA SECTIONS
   ============================================================ */
.home-final-cta { background: var(--gradient-cta); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); padding: clamp(48px, 8vw, 80px) 0; text-align: center; }
.home-final-cta h2 { font-size: var(--fs-h2); color: #fff; margin-bottom: 12px; }
.cta-note { color: var(--color-text-muted); font-size: var(--fs-small); margin-top: 18px; }

/* ============================================================
   AOS FALLBACK
   ============================================================ */
[data-aos] { opacity: 1 !important; transform: none !important; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .feature-grid, .game-card-grid, .review-grid, .bonus-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .faq-cat-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .auth-grid { grid-template-columns: 1fr; }
    .value-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .feature-grid, .game-card-grid, .review-grid, .bonus-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .faq-cat-grid { grid-template-columns: repeat(2, 1fr); }
    .step-flow { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: center; }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 375px) {
    body { font-size: 15px; }
    .content-section { padding: 36px 0; }
    .home-hero { padding: 48px 16px; }
    .stats-grid { gap: 10px; }
    .stat-number { font-size: 1.5rem; }
}

/* 404 */
.error-section h1 { font-size: 5rem; color: var(--color-primary); font-weight: 700; }
.error-section h2 { font-size: var(--fs-h2); color: #fff; margin-bottom: 16px; }