/* ============================================================
   VYAPAAR 2.0 — The Next Generation Business System
   Design System v1.0
   Dark Professional Theme — Business Green Accent
   ============================================================ */

/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;800;900&family=DM+Sans:wght@400;500;600;700&display=swap');

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Backgrounds */
    --bg: #0a0a0a;
    --card-bg: #111111;
    --card-border: #1a1a1a;
    --bg-surface: #141420;
    --bg-hover: #1a1a1a;

    /* Business Green Accent */
    --accent: #2E8B57;
    --accent-light: #3DAA6D;
    --accent-dark: #1F5E3A;
    --accent-glow: rgba(46, 139, 87, 0.15);
    --accent-gradient: linear-gradient(135deg, #2E8B57, #1F5E3A);

    /* Text */
    --text: #F0EFE9;
    --text-secondary: #9a9a9a;
    --text-muted: #6a6a6a;

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(46, 139, 87, 0.3);

    /* Status */
    --green: #2E8B57;
    --green-glow: rgba(46, 139, 87, 0.15);
    --red: #C0392B;
    --blue: #4A90D9;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Fixed Header Heights */
    --navbar-h: 61px;
    --trustbar-h: 44px;
    --header-total: calc(var(--navbar-h) + var(--trustbar-h));

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Legacy aliases */
    --font-family: var(--font-body);
    --bg-dark: var(--bg);
    --bg-card: var(--card-bg);
    --bg-overlay: rgba(10, 10, 10, 0.92);
    --text-primary: var(--text);
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1.0625rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.25rem;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-accent: 0 4px 25px rgba(46, 139, 87, 0.15);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--accent-light); }
img { max-width: 100%; display: block; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--text); }
.text-accent { color: var(--accent); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

/* ===== LAYOUT ===== */
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.reading-container { width: 100%; max-width: 680px; margin: 0 auto; padding: 0 var(--space-lg); }

/* ===== NAVBAR ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 16px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.navbar-brand {
    font-family: var(--font-display); font-size: 1.1rem; font-weight: 800;
    color: var(--accent) !important; letter-spacing: 1px;
}
.nav-link { color: var(--text-secondary) !important; font-size: 0.875rem; font-weight: 500; transition: color 0.15s ease; }
.nav-link:hover { color: var(--accent) !important; }
.nav-btn {
    color: var(--accent) !important; font-size: 0.8rem; font-weight: 700;
    padding: 7px 18px; border: 1.5px solid var(--border-accent); border-radius: 6px;
    transition: all 0.2s ease; text-decoration: none; letter-spacing: 0.3px;
}
.nav-btn:hover { background: var(--accent-glow); color: var(--accent-light) !important; border-color: var(--accent); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.navbar-nav { display: flex; gap: var(--space-lg); list-style: none; }
.navbar-nav a { color: var(--text-secondary); font-size: var(--font-size-sm); font-weight: 500; padding: var(--space-sm) 0; transition: color var(--transition-fast); }
.navbar-nav a:hover, .navbar-nav a.active { color: var(--accent); }

/* ===== TRUST BAR ===== */
.trust-bar {
    background: rgba(46, 139, 87, 0.05); border-bottom: 1px solid rgba(46, 139, 87, 0.12);
    padding: 10px 20px; position: fixed; top: var(--navbar-h); left: 0; right: 0; z-index: 99;
    display: flex; justify-content: center; align-items: center;
    transition: top 0.3s ease; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.trust-bar-content { display: flex; align-items: center; gap: 16px; font-size: 0.78rem; flex-wrap: wrap; white-space: normal; justify-content: center; }
.trust-bar-item { display: flex; align-items: center; gap: 8px; color: var(--text-muted); }
.trust-bar-divider { color: var(--text-muted); font-size: 0.7rem; opacity: 0.5; }

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    text-align: center; padding: calc(var(--header-total) + 40px) 24px 60px;
    position: relative; overflow: hidden;
}
.hero-glow {
    position: absolute; top: -30%; left: 50%; transform: translateX(-50%);
    width: 900px; height: 900px;
    background: radial-gradient(circle at 50% 10%, rgba(46, 139, 87, 0.12), transparent 65%);
    pointer-events: none; z-index: 0;
}
.hero-content { max-width: 700px; position: relative; z-index: 1; }
.eyebrow {
    display: inline-block; font-family: var(--font-body); font-size: 0.8rem; font-weight: 600;
    color: var(--accent); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 20px;
}
.hero-title { font-family: var(--font-display); font-size: clamp(2.2rem, 8vw, 4rem); font-weight: 900; color: var(--text); letter-spacing: 2px; margin-bottom: 32px; line-height: 1.1; }
.hero-body p { font-size: clamp(1rem, 3.5vw, 1.15rem); color: var(--text); line-height: 1.9; max-width: 600px; margin: 0 auto 24px; }
.hero-quote { font-family: var(--font-display); font-size: clamp(0.95rem, 3vw, 1.1rem); color: var(--accent); font-style: italic; line-height: 1.8; border: none; padding: 20px 0; margin: 0 auto 24px; max-width: 550px; }
.hero-body-secondary p { font-size: clamp(0.9rem, 3vw, 1rem); color: var(--text-secondary); line-height: 1.8; max-width: 550px; margin: 0 auto 32px; }
.hero-body-secondary strong { color: var(--accent); }
.hero-cta { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.cta-micro { display: block; font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* ===== PRIMARY CTA BUTTON ===== */
.btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #2E8B57, #1F5E3A); color: #fff;
    font-family: var(--font-body); font-weight: 700; padding: 18px 40px;
    border-radius: 4px; font-size: 1.1rem; letter-spacing: 0.5px;
    box-shadow: 0 0 30px rgba(46, 139, 87, 0.3); border: none;
    cursor: pointer; transition: all 0.3s ease; text-decoration: none;
    animation: greenPulse 3s ease-in-out infinite;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 50px rgba(46, 139, 87, 0.5); color: #fff; }
@keyframes greenPulse {
    0%, 100% { box-shadow: 0 0 30px rgba(46, 139, 87, 0.3); }
    50% { box-shadow: 0 0 50px rgba(46, 139, 87, 0.6); }
}

/* ===== ENGINE CARDS ===== */
.phases-section { padding: 80px 0; }
.section-heading { font-family: var(--font-display); font-size: clamp(1.4rem, 5vw, 2rem); font-weight: 800; text-align: center; color: var(--text); margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--text-muted); font-size: clamp(0.9rem, 3vw, 1rem); max-width: 500px; margin: 0 auto 40px; font-style: italic; }
.phases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.phase-card {
    background: var(--card-bg); border: 1px solid var(--card-border);
    border-left: 3px solid var(--accent); border-radius: 8px; padding: 28px 24px;
    transition: all 0.3s ease; position: relative;
}
.phase-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(46, 139, 87, 0.12); border-color: rgba(46, 139, 87, 0.4); }
.phase-number { font-family: var(--font-body); font-size: 0.7rem; font-weight: 700; color: var(--accent); letter-spacing: 2px; margin-bottom: 8px; display: block; }
.phase-title { font-family: var(--font-body); font-size: 1.1rem; font-weight: 600; color: var(--text); margin-bottom: 12px; line-height: 1.4; }
.phase-desc { font-size: var(--font-size-sm); color: var(--text-secondary); line-height: 1.6; }
.phase-count { display: inline-block; font-size: 0.75rem; color: var(--text-muted); background: rgba(255, 255, 255, 0.04); padding: 4px 12px; border-radius: 100px; }

/* ===== STATS BAR ===== */
.stats-bar { padding: 32px 0; border-top: 1px solid rgba(255, 255, 255, 0.06); border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.stats-inner { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; font-size: 0.95rem; color: var(--text-secondary); font-weight: 500; }
.stats-dot { color: var(--accent); font-weight: 800; }

/* ===== FOOTER ===== */
.footer { padding: 48px 0; border-top: 1px solid rgba(255, 255, 255, 0.06); text-align: center; }
.footer-brand { font-family: var(--font-display); font-size: 1.1rem; font-weight: 800; color: var(--accent); margin-bottom: 4px; }
.footer-tagline { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; font-style: italic; }
.footer-credit { font-size: 0.8rem; color: var(--text-muted); }
.footer-credit a { color: var(--text-muted); text-decoration: underline; text-underline-offset: 2px; }
.footer-credit a:hover { color: var(--accent); }

/* ===== BOTTOM CTA ===== */
.bottom-cta { padding: 80px 0; text-align: center; }
.bottom-cta .section-heading { margin-bottom: 12px; }
.bottom-cta .section-sub { margin-bottom: 32px; font-style: normal; }

/* ===== RESUME BANNER ===== */
.resume-banner {
    margin-top: 32px; background: rgba(46, 139, 87, 0.08); border: 1px solid rgba(46, 139, 87, 0.25);
    padding: 24px 28px; border-radius: 12px; max-width: 500px; margin-left: auto; margin-right: auto;
}
.resume-greeting { font-size: 1rem; color: var(--accent); font-weight: 700; margin-bottom: 8px; }
.resume-info { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; }
.resume-info span { color: var(--accent); font-weight: 800; }
.resume-btn { font-size: 0.95rem !important; padding: 12px 28px !important; }

/* ===== PWA INSTALL BANNER ===== */
#install-banner {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999;
    background: #1a1a1a; border-top: 1px solid var(--accent);
    padding: 12px 16px; padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)); display: none;
}
.install-banner-inner { display: flex; align-items: center; gap: 12px; max-width: 600px; margin: 0 auto; }
.install-icon { font-size: 1.6rem; flex-shrink: 0; }
.install-text { flex: 1; min-width: 0; }
.install-text strong { display: block; color: var(--text); font-size: 0.9rem; }
.install-text small { color: var(--text-muted); font-size: 0.75rem; }
.btn-install-cta {
    background: var(--accent); color: #fff; font-family: var(--font-body); font-weight: 700;
    padding: 8px 20px; border-radius: 4px; border: none; cursor: pointer; white-space: nowrap; font-size: 0.85rem; transition: background 0.2s ease;
}
.btn-install-cta:hover { background: var(--accent-light); }
.btn-dismiss { background: none; border: none; color: var(--text-muted); font-size: 1.2rem; cursor: pointer; padding: 4px 8px; flex-shrink: 0; }

/* ===== LESSON PAGE ===== */
.lesson-article { padding: calc(var(--header-total) + 40px) 0 80px; }
.lesson-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.lesson-engine { font-size: 0.75rem; font-weight: 700; color: var(--accent); letter-spacing: 2px; text-transform: uppercase; }
.lesson-num { font-size: 0.8rem; color: var(--text-muted); }
.lesson-title { font-family: var(--font-display); font-size: clamp(1.6rem, 5vw, 2.4rem); font-weight: 900; color: var(--text); margin-bottom: 20px; line-height: 1.2; }
.lesson-hook { font-size: 1.1rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 36px; padding-bottom: 24px; border-bottom: 1px solid var(--border-color); font-style: italic; }

/* Sections */
.section-block { margin-bottom: 28px; }
.section-text { font-size: 1.05rem; color: var(--text); line-height: 1.9; white-space: pre-wrap; }
.section-highlight { background: rgba(46, 139, 87, 0.08); border-left: 3px solid var(--accent); padding: 20px 24px; border-radius: 0 8px 8px 0; font-size: 1rem; color: var(--text); line-height: 1.8; }
.section-example { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-color); border-radius: 8px; padding: 20px 24px; font-size: 0.95rem; color: var(--text-secondary); line-height: 1.8; }
.section-example::before { content: '📌 Example:'; display: block; font-size: 0.75rem; font-weight: 700; color: var(--accent); letter-spacing: 1px; margin-bottom: 10px; }

/* New section types — Challenge, Action, Mistake */
.section-challenge {
    background: rgba(212, 168, 0, 0.06); border-left: 3px solid #D4A853;
    padding: 20px 24px; border-radius: 0 8px 8px 0; font-size: 0.95rem; color: var(--text); line-height: 1.8;
}
.section-challenge::before { content: '⚠️ Challenge:'; display: block; font-size: 0.75rem; font-weight: 700; color: #D4A853; letter-spacing: 1px; margin-bottom: 10px; }
.section-action {
    background: rgba(46, 139, 87, 0.12); border: 1px solid rgba(46, 139, 87, 0.3);
    border-radius: 8px; padding: 20px 24px; font-size: 0.95rem; color: var(--text); line-height: 1.8;
}
.section-action::before { content: '🎯 Action Plan:'; display: block; font-size: 0.75rem; font-weight: 700; color: var(--accent); letter-spacing: 1px; margin-bottom: 10px; }
.section-mistake {
    background: rgba(192, 57, 43, 0.06); border-left: 3px solid #C0392B;
    padding: 20px 24px; border-radius: 0 8px 8px 0; font-size: 0.95rem; color: var(--text); line-height: 1.8;
}
.section-mistake::before { content: '❌ Common Mistake:'; display: block; font-size: 0.75rem; font-weight: 700; color: #C0392B; letter-spacing: 1px; margin-bottom: 10px; }
.section-question {
    background: rgba(74, 144, 217, 0.06); border-left: 3px solid #4A90D9;
    padding: 20px 24px; border-radius: 0 8px 8px 0; font-size: 0.95rem; color: var(--text); line-height: 1.8; font-style: italic;
}
.section-question::before { content: '💭 Think:'; display: block; font-size: 0.75rem; font-weight: 700; color: #4A90D9; letter-spacing: 1px; margin-bottom: 10px; font-style: normal; }

/* Lesson progress bar */
.lesson-progress-bar { height: 3px; background: var(--border-color); position: fixed; top: var(--header-total); left: 0; right: 0; z-index: 98; }
.lesson-progress-fill { height: 100%; background: var(--accent); width: 0%; transition: width 0.3s ease; }

/* Takeaway + Cliffhanger + Nav */
.lesson-takeaway { background: rgba(46, 139, 87, 0.1); border: 1px solid rgba(46, 139, 87, 0.25); border-radius: 10px; padding: 24px; margin: 36px 0 0; }
.lesson-takeaway h3 { color: var(--accent); font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.lesson-takeaway p { color: var(--text); line-height: 1.8; }
.lesson-cliffhanger { background: rgba(255,255,255,0.03); border: 1px solid var(--border-color); border-radius: 10px; padding: 24px; margin-top: 20px; font-style: italic; color: var(--text-secondary); line-height: 1.8; }
.lesson-cliffhanger::before { content: '→ Agla Chapter:'; display: block; font-size: 0.75rem; font-weight: 700; color: var(--text-muted); letter-spacing: 1px; margin-bottom: 8px; font-style: normal; }
.lesson-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 36px; gap: 12px; flex-wrap: wrap; }
.lesson-nav-btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border: 1px solid var(--border-accent); border-radius: 6px; color: var(--accent); font-weight: 600; font-size: 0.9rem; transition: all 0.2s; }
.lesson-nav-btn:hover { background: var(--accent-glow); color: var(--accent-light); }
.lesson-nav-btn.btn-complete { background: var(--accent-gradient); color: #fff; border: none; }

/* Premium lesson overlay */
.premium-overlay { text-align: center; padding: 80px 24px; }
.premium-lock-icon { font-size: 3rem; margin-bottom: 20px; }
.premium-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 900; margin-bottom: 12px; }
.premium-price { font-size: 2.4rem; font-weight: 900; color: var(--accent); margin: 16px 0; }
.premium-price small { font-size: 0.9rem; color: var(--text-muted); display: block; font-weight: 400; }

/* ===== JOURNEY PAGE ===== */
.journey-section { padding: calc(var(--header-total) + 40px) 0 80px; }
.engine-group { margin-bottom: 40px; }
.engine-title { color: var(--accent); font-size: 0.75rem; letter-spacing: 3px; font-weight: 700; text-transform: uppercase; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border-accent); }
.lesson-list { display: flex; flex-direction: column; gap: 8px; }
.lesson-item {
    display: flex; align-items: center; gap: 14px; padding: 14px 16px;
    background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 8px;
    transition: all 0.2s ease; text-decoration: none; color: var(--text);
}
.lesson-item:hover { border-color: var(--border-accent); background: var(--bg-hover); }
.lesson-item.completed { border-color: rgba(46, 139, 87, 0.4); }
.lesson-item.locked { opacity: 0.5; cursor: not-allowed; }
.lesson-item.premium { border-color: rgba(212, 168, 83, 0.2); }
.lesson-status-icon { font-size: 1rem; flex-shrink: 0; }
.lesson-info { flex: 1; min-width: 0; }
.lesson-num-label { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 1px; }
.lesson-name { font-size: 0.95rem; font-weight: 600; color: var(--text); }
.lesson-premium-badge { font-size: 0.65rem; color: #D4A853; background: rgba(212, 168, 83, 0.1); padding: 2px 8px; border-radius: 100px; font-weight: 700; letter-spacing: 1px; }

/* ===== UNLOCK PAGE ===== */
.unlock-section { padding: calc(var(--header-total) + 40px) 24px 80px; }
.unlock-card { max-width: 520px; margin: 0 auto; background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 16px; padding: 40px 32px; }
.price-display { text-align: center; margin-bottom: 32px; }
.price-amount { font-family: var(--font-display); font-size: 3.5rem; font-weight: 900; color: var(--accent); }
.price-note { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.upi-box { background: rgba(46, 139, 87, 0.08); border: 1px solid rgba(46, 139, 87, 0.25); border-radius: 10px; padding: 20px; text-align: center; margin-bottom: 24px; }
.upi-id { font-size: 1.4rem; font-weight: 800; color: var(--accent); letter-spacing: 1px; }
.upi-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.form-control { width: 100%; padding: 12px 16px; background: rgba(255,255,255,0.04); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text); font-family: var(--font-body); font-size: 0.95rem; transition: border-color 0.2s; }
.form-control:focus { outline: none; border-color: var(--accent); }
.form-control::placeholder { color: var(--text-muted); }
#unlock-status { margin-top: 16px; padding: 14px; border-radius: 8px; font-size: 0.9rem; display: none; }
#unlock-status.success { background: rgba(46,139,87,0.12); color: var(--accent); }
#unlock-status.error { background: rgba(192,57,43,0.1); color: #e74c3c; }
#unlock-status.pending { background: rgba(212,168,83,0.1); color: #D4A853; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    :root { --navbar-h: 58px; --trustbar-h: 42px; }
    .trust-bar { padding: 9px 14px; }
    .trust-bar-content { gap: 8px 10px; font-size: 0.72rem; flex-wrap: wrap; white-space: normal; justify-content: center; }
    .hide-on-mobile { display: none; }
    .unlock-card { padding: 28px 20px; }
    .price-amount { font-size: 2.8rem; }
    .phase-card { padding: 20px 18px; }
}