/* ============================================================
   FlowRev AI — Main Stylesheet
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── CSS Variables ── */
:root {
  --primary:       #0ea5e9;
  --primary-dark:  #0284c7;
  --primary-light: #38bdf8;
  --teal:          #14b8a6;
  --teal-dark:     #0f766e;
  --dark:          #0f172a;
  --dark-2:        #1e293b;
  --dark-3:        #334155;
  --muted:         #64748b;
  --light:         #f8fafc;
  --white:         #ffffff;
  --border:        #e2e8f0;
  --gradient:      linear-gradient(135deg, #0ea5e9 0%, #14b8a6 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  --shadow-sm:     0 1px 3px rgba(0,0,0,.08);
  --shadow:        0 4px 20px rgba(0,0,0,.10);
  --shadow-lg:     0 10px 40px rgba(0,0,0,.15);
  --radius:        12px;
  --radius-lg:     20px;
  --transition:    .3s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'Inter', sans-serif; color: var(--dark); background: var(--white); line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Typography ── */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.25; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { color: var(--muted); }

/* ── Utility ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.text-center { text-align: center; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(14,165,233,.1); color: var(--primary);
  border: 1px solid rgba(14,165,233,.2);
  padding: 6px 14px; border-radius: 100px;
  font-size: .8rem; font-weight: 600; letter-spacing: .05em;
  text-transform: uppercase; margin-bottom: 16px;
}
.section-title { margin-bottom: 16px; }
.section-subtitle { font-size: 1.1rem; max-width: 600px; margin: 0 auto 56px; }
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 8px;
  font-size: .95rem; font-weight: 600;
  cursor: pointer; border: none; transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient); color: var(--white);
  box-shadow: 0 4px 15px rgba(14,165,233,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(14,165,233,.45); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,.35);
}
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: var(--white); }
.btn-dark {
  background: var(--dark); color: var(--white);
}
.btn-dark:hover { background: var(--dark-2); transform: translateY(-2px); }
.btn-lg { padding: 18px 36px; font-size: 1.05rem; border-radius: 10px; }

/* ── Header / Nav ── */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  background: rgba(15,23,42,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: var(--transition);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px;
}
.logo {
  font-size: 1.4rem; font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  color: rgba(255,255,255,.75); font-size: .9rem; font-weight: 500;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: var(--transition); }

/* ── Mobile Nav ── */
.mobile-nav {
  display: none; position: fixed; top: 70px; left: 0; right: 0;
  background: var(--dark); z-index: 998; padding: 24px;
  flex-direction: column; gap: 16px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.mobile-nav.open { display: flex; }
.mobile-nav a { color: rgba(255,255,255,.8); font-size: 1rem; font-weight: 500; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.07); }

/* ── Hero ── */
.hero {
  background: var(--gradient-dark);
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(14,165,233,.15) 0%, transparent 70%);
}
.hero-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center; position: relative; z-index: 1;
}
.hero-label { color: var(--primary-light); font-size: .85rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 16px; }
.hero h1 { color: var(--white); margin-bottom: 24px; }
.hero p { font-size: 1.1rem; color: rgba(255,255,255,.7); margin-bottom: 40px; max-width: 520px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-trust { display: flex; align-items: center; gap: 12px; margin-top: 32px; }
.hero-trust span { color: rgba(255,255,255,.5); font-size: .85rem; }
.trust-badges { display: flex; gap: 8px; flex-wrap: wrap; }
.trust-badge {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12);
  padding: 4px 12px; border-radius: 100px;
  color: rgba(255,255,255,.65); font-size: .78rem; font-weight: 500;
}

/* ── Dashboard Mockup ── */
.dashboard-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.dash-header {
  display: flex; align-items: center; gap: 8px; margin-bottom: 20px;
  padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.dash-header .dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #22c55e; }
.dash-title { color: rgba(255,255,255,.6); font-size: .8rem; margin-left: 8px; }
.dash-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.stat-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px; padding: 16px;
}
.stat-label { color: rgba(255,255,255,.5); font-size: .72rem; margin-bottom: 4px; text-transform: uppercase; letter-spacing: .05em; }
.stat-value { color: var(--white); font-size: 1.5rem; font-weight: 700; }
.stat-change { font-size: .75rem; color: #22c55e; font-weight: 600; }
.stat-change.red { color: #ef4444; }
.ai-summary {
  background: rgba(14,165,233,.12); border: 1px solid rgba(14,165,233,.25);
  border-radius: 10px; padding: 14px;
}
.ai-summary-title { color: var(--primary-light); font-size: .75rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 8px; }
.ai-summary-text { color: rgba(255,255,255,.7); font-size: .82rem; line-height: 1.5; }

/* ── Problem Section ── */
.section-dark { background: var(--dark); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark p { color: rgba(255,255,255,.6); }
.section-dark .badge { background: rgba(14,165,233,.15); color: var(--primary-light); }
.section-dark .section-subtitle { color: rgba(255,255,255,.55); }
.problem-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.problem-card {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition);
}
.problem-card:hover { border-color: rgba(239,68,68,.3); transform: translateY(-4px); }
.problem-icon { font-size: 2rem; margin-bottom: 16px; }
.problem-card h3 { color: var(--white); margin-bottom: 8px; }

/* ── Solution Section ── */
.solution-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 24px; }
.solution-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  text-align: center; transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.solution-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: var(--primary-light); }
.solution-icon {
  width: 60px; height: 60px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(14,165,233,.1), rgba(20,184,166,.1));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; margin: 0 auto 16px;
}
.solution-card h3 { font-size: 1rem; margin-bottom: 8px; }

/* ── Features Section ── */
.features-bg { background: var(--light); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.feature-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: var(--transition); box-shadow: var(--shadow-sm);
}
.feature-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--gradient); display: flex; align-items: center;
  justify-content: center; font-size: 1.3rem; margin-bottom: 16px;
  color: white;
}
.feature-card h3 { margin-bottom: 8px; font-size: 1rem; }

/* ── How It Works ── */
.steps { display: flex; flex-direction: column; gap: 0; max-width: 700px; margin: 0 auto; }
.step { display: flex; gap: 24px; align-items: flex-start; position: relative; padding-bottom: 40px; }
.step:last-child { padding-bottom: 0; }
.step:not(:last-child)::before {
  content: ''; position: absolute; left: 19px; top: 48px;
  bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--primary), transparent);
}
.step-num {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  background: var(--gradient); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .9rem;
  box-shadow: 0 0 0 4px rgba(14,165,233,.15);
}
.step-content h3 { margin-bottom: 6px; }
.step-content p { font-size: .95rem; }

/* ── Target Section ── */
.target-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; }
.target-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 20px;
  text-align: center; transition: var(--transition);
  box-shadow: var(--shadow-sm); cursor: default;
}
.target-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-4px); }
.target-emoji { font-size: 2.4rem; margin-bottom: 12px; }
.target-card h3 { font-size: .95rem; }

/* ── AI Advantage Section ── */
.ai-section { background: var(--gradient-dark); position: relative; overflow: hidden; }
.ai-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 70% at 80% 50%, rgba(14,165,233,.12), transparent);
}
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; position: relative; z-index: 1; }
.ai-content h2, .ai-content h3 { color: var(--white); }
.ai-content p { color: rgba(255,255,255,.65); font-size: 1.05rem; margin-bottom: 32px; }
.ai-bullets { display: flex; flex-direction: column; gap: 14px; }
.ai-bullet {
  display: flex; align-items: center; gap: 12px;
  color: rgba(255,255,255,.85); font-size: .95rem;
}
.bullet-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  background: var(--gradient);
}
.ai-visual {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg); padding: 32px;
}
.ai-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(14,165,233,.15); border: 1px solid rgba(14,165,233,.3);
  border-radius: 8px; padding: 10px 16px;
  color: var(--primary-light); font-size: .85rem; font-weight: 500;
  margin: 6px; transition: var(--transition);
}
.ai-chip:hover { background: rgba(14,165,233,.25); transform: translateY(-2px); }

/* ── Pricing ── */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 960px; margin: 0 auto; }
.price-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
  transition: var(--transition); position: relative;
}
.price-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.price-card.featured {
  background: var(--gradient-dark);
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary), var(--shadow-lg);
}
.price-card.featured h3, .price-card.featured .price-amount,
.price-card.featured .price-period { color: var(--white); }
.price-card.featured p { color: rgba(255,255,255,.6); }
.price-card.featured .price-feature { color: rgba(255,255,255,.8); }
.popular-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gradient); color: white;
  padding: 4px 18px; border-radius: 100px; font-size: .78rem; font-weight: 700;
  white-space: nowrap;
}
.price-card h3 { margin-bottom: 8px; font-size: 1.1rem; }
.price-amount { font-size: 2.8rem; font-weight: 800; color: var(--dark); line-height: 1; }
.price-period { color: var(--muted); font-size: .85rem; margin-bottom: 24px; }
.price-divider { height: 1px; background: var(--border); margin: 20px 0; }
.price-card.featured .price-divider { background: rgba(255,255,255,.12); }
.price-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.price-feature { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: var(--dark-3); }
.price-check { color: var(--teal); font-weight: 700; }
.price-note { text-align: center; color: var(--muted); font-size: .82rem; margin-top: 36px; }

/* ── Lead Form ── */
.form-section { background: var(--light); }
.form-wrapper {
  max-width: 680px; margin: 0 auto;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 48px;
  box-shadow: var(--shadow-lg);
}
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-size: .85rem; font-weight: 600; color: var(--dark); margin-bottom: 6px; }
label span { color: #ef4444; }
input, select, textarea {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-size: .95rem; font-family: inherit; color: var(--dark);
  background: var(--white); transition: var(--transition);
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,165,233,.12);
}
textarea { resize: vertical; min-height: 120px; }
.form-submit { width: 100%; margin-top: 8px; justify-content: center; font-size: 1rem; padding: 16px; }
.form-note { text-align: center; color: var(--muted); font-size: .8rem; margin-top: 12px; }
.alert { padding: 14px 18px; border-radius: 8px; font-size: .9rem; margin-bottom: 20px; }
.alert-error { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }

/* ── FAQ ── */
.faq-list { max-width: 740px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.faq-question {
  width: 100%; background: none; border: none; padding: 20px 24px;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer; font-family: inherit; font-size: 1rem; font-weight: 600;
  color: var(--dark); text-align: left; transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon { font-size: 1.2rem; transition: var(--transition); color: var(--primary); flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s ease; }
.faq-item.open .faq-answer { padding: 0 24px 20px; max-height: 200px; }
.faq-answer p { font-size: .95rem; }

/* ── Thank You Page ── */
.thankyou-section {
  min-height: 100vh; display: flex; align-items: center;
  background: var(--gradient-dark);
}
.thankyou-card {
  max-width: 560px; margin: 0 auto; text-align: center;
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg); padding: 64px 48px;
}
.thankyou-icon { font-size: 4rem; margin-bottom: 24px; }
.thankyou-card h1 { color: var(--white); font-size: 2rem; margin-bottom: 16px; }
.thankyou-card p { color: rgba(255,255,255,.65); margin-bottom: 32px; }

/* ── Privacy Page ── */
.privacy-section { padding: 120px 0 80px; }
.privacy-content { max-width: 760px; margin: 0 auto; }
.privacy-content h1 { margin-bottom: 8px; }
.privacy-content .updated { color: var(--muted); font-size: .85rem; margin-bottom: 40px; }
.privacy-content h2 { font-size: 1.3rem; margin: 36px 0 12px; }
.privacy-content p { margin-bottom: 16px; }
.privacy-content ul { padding-left: 20px; list-style: disc; margin-bottom: 16px; }
.privacy-content ul li { color: var(--muted); margin-bottom: 8px; }

/* ── Footer ── */
.footer { background: var(--dark); color: rgba(255,255,255,.6); padding: 56px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo { margin-bottom: 12px; display: inline-block; }
.footer-tagline { font-size: .9rem; margin-bottom: 16px; }
.footer-contact a { color: rgba(255,255,255,.6); font-size: .9rem; display: block; margin-bottom: 6px; transition: var(--transition); }
.footer-contact a:hover { color: var(--primary-light); }
.footer-col h4 { color: var(--white); font-size: .95rem; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: rgba(255,255,255,.55); font-size: .9rem; margin-bottom: 10px; transition: var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: .82rem; }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,.45); transition: var(--transition); }
.footer-bottom-links a:hover { color: var(--white); }

/* ── Scroll Animations ── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-grid, .ai-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 100px 0 60px; min-height: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-cta .btn-primary { display: none; }
  .hamburger { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .form-wrapper { padding: 32px 24px; }
}
@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .thankyou-card { padding: 40px 24px; }
}