@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Thai:wght@300;400;500;600;700&display=swap');

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

:root {
  --bg: #0D0D0D;
  --bg-2: #161616;
  --bg-3: #1E1E1E;
  --accent: #FF6B00;
  --accent-dark: #CC5500;
  --accent-light: #FF8C33;
  --text: #F5F0E8;
  --text-muted: #9CA3AF;
  --text-dim: #6B7280;
  --border: rgba(255, 107, 0, 0.2);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --card-bg: rgba(22, 22, 22, 0.6);
  --card-bg-hover: rgba(30, 30, 30, 0.8);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-accent: 0 0 32px rgba(255, 107, 0, 0.15);
  --font: 'IBM Plex Sans Thai', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-h: 72px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Typography */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; }
h1 { font-size: clamp(2.2rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p { color: var(--text-muted); }
strong { color: var(--text); font-weight: 600; }
a { text-decoration: none; color: inherit; }

.text-accent { color: var(--accent); }
.font-bold { font-weight: 700; }
.w-full { width: 100%; }
.mt-2 { margin-top: 0.5rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(255, 107, 0, 0.3);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 0, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(255, 107, 0, 0.3);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.1);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.btn-sm { padding: 8px 20px; font-size: 0.9rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-xl { padding: 18px 44px; font-size: 1.1rem; }

/* Sections */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-label {
  display: inline-block;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding: 6px 16px;
  background: rgba(255, 107, 0, 0.1);
  border: 1px solid rgba(255, 107, 0, 0.2);
  border-radius: 50px;
}
.section-title { color: var(--text); margin-bottom: 16px; }
.section-desc { color: var(--text-muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; line-height: 1.8; }

/* Animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(40px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeLeft { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.15); opacity: 0.7; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes glowPulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.6; } }

.animate-fade-up { animation: fadeUp 0.8s ease both; }
.animate-fade-left { animation: fadeLeft 0.8s 0.3s ease both; }

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--delay, 0s);
}
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(13, 13, 13, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}
.navbar.scrolled {
  background: rgba(13, 13, 13, 0.98);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img { width: 36px; height: 36px; border-radius: 8px; }
.logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: 0.02em; }
.logo-accent { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { color: var(--text-muted); font-size: 0.95rem; font-weight: 500; transition: color var(--transition); position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; right: 0; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform var(--transition); }
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { transform: scaleX(1); }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu { display: none; flex-direction: column; gap: 8px; padding: 20px 24px 24px; background: var(--bg); border-top: 1px solid var(--border-subtle); }
.mobile-menu.open { display: flex; }
.mobile-link { color: var(--text-muted); padding: 12px 0; border-bottom: 1px solid var(--border-subtle); font-size: 1rem; transition: color 0.3s; }
.mobile-link:hover { color: var(--accent); }

/* Hero */
.hero { min-height: auto; padding-bottom: 60px; display: flex; align-items: center; position: relative; padding-top: var(--nav-h); overflow: hidden; }
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(100px); pointer-events: none; animation: glowPulse 4s infinite alternate; }
.hero-glow-1 { width: 500px; height: 500px; background: rgba(255, 107, 0, 0.15); top: -100px; left: -100px; }
.hero-glow-2 { width: 400px; height: 400px; background: rgba(255, 107, 0, 0.1); bottom: 100px; right: -50px; animation-delay: 2s; }

.hero-inner { display: grid; grid-template-columns: 1fr; text-align: center; justify-items: center; gap: 64px; align-items: center; position: relative; z-index: 1; padding: 40px 24px; }

.badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: rgba(255, 107, 0, 0.1); border: 1px solid var(--border); border-radius: 50px; font-size: 0.85rem; font-weight: 600; color: var(--accent); margin-bottom: 24px; }
.badge-dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: pulse 2s infinite; }

.hero-sub { font-size: 1.15rem; margin-bottom: 32px; color: var(--text-muted); }

.hero-trust { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
.trust-item { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.trust-item span { color: var(--accent); margin-right: 4px; }

.hero-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* Visual Mockups */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; height: 500px; }
.phone-mockup-group { position: relative; width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; }
.phone-card { position: absolute; background: var(--bg-3); border: 2px solid var(--border-subtle); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.phone-screen-inner { flex: 1; background: linear-gradient(135deg, #1f1f1f, #111); display: flex; align-items: center; justify-content: center; }

.phone-main { width: 220px; height: 420px; z-index: 3; border-color: var(--accent); box-shadow: var(--shadow-accent); animation: float 6s ease-in-out infinite; }
.phone-side { width: 180px; height: 340px; right: 20px; z-index: 2; transform: rotate(5deg); animation: float 6s 1s ease-in-out infinite; opacity: 0.8; }
.phone-back { width: 160px; height: 300px; left: 20px; z-index: 1; transform: rotate(-5deg); animation: float 6s 2s ease-in-out infinite; opacity: 0.5; }

.video-placeholder { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.play-btn { width: 48px; height: 48px; background: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; padding-left: 4px; color: white; font-size: 1.2rem; }
.phone-label { padding: 12px; background: rgba(0,0,0,0.6); display: flex; justify-content: space-between; align-items: center; font-size: 0.75rem; color: #fff; }
.platform-badge { padding: 4px 8px; background: #000; border-radius: 4px; font-weight: bold; font-size: 0.7rem; }
.platform-badge.ig { background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); }

.float-badge { position: absolute; padding: 12px 20px; background: rgba(22, 22, 22, 0.9); border: 1px solid var(--border); border-radius: 50px; font-weight: 600; font-size: 0.9rem; backdrop-filter: blur(10px); box-shadow: var(--shadow); z-index: 4; }
.float-1 { top: 40px; right: 0; animation: float 4s 0.5s infinite alternate; }
.float-2 { bottom: 80px; left: 0; animation: float 4s 1.5s infinite alternate; }

/* Pain Points */
.pain-section { background: linear-gradient(to bottom, var(--bg) 0%, var(--bg-2) 100%); }
.pain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; margin-bottom: 64px; }
.pain-card { padding: 32px; background: var(--card-bg); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); transition: all 0.3s; }
.pain-card:hover { transform: translateY(-8px); border-color: var(--border); background: var(--card-bg-hover); }
.pain-icon { font-size: 2.5rem; margin-bottom: 20px; }
.pain-card h3 { margin-bottom: 12px; font-size: 1.1rem; }

.pain-solution { text-align: center; padding: 48px 24px; background: rgba(255, 107, 0, 0.05); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.pain-solution-text { font-size: 1.25rem; margin-bottom: 24px; }

/* Services */
.services-section { background: var(--bg); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
.service-card { padding: 40px; background: var(--card-bg); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); position: relative; overflow: hidden; transition: 0.3s; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: 0.4s ease; }
.service-card:hover { transform: translateY(-8px); border-color: var(--border); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon { width: 64px; height: 64px; background: rgba(255, 107, 0, 0.1); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--accent); margin-bottom: 24px; transition: 0.3s; }
.service-card:hover .service-icon { background: var(--accent); color: white; }
.service-card h3 { margin-bottom: 16px; }

.service-list { list-style: none; margin-top: 24px; border-top: 1px solid var(--border-subtle); padding-top: 24px; }
.service-list li { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; font-size: 0.95rem; }
.service-list li::before { content: '✓'; color: var(--accent); font-weight: bold; }

/* Portfolio */
.portfolio-section { background: var(--bg-2); }
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; margin-bottom: 48px; }
.portfolio-card { background: var(--bg-3); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); overflow: hidden; transition: 0.3s; }
.portfolio-card:hover { transform: translateY(-8px); border-color: var(--border); }

.portfolio-thumb { position: relative; aspect-ratio: 9/16; background: #000; overflow: hidden; }
.thumb-bg { position: absolute; inset: 0; opacity: 0.6; transition: 0.5s; background-size: cover; background-position: center; }
.portfolio-card:hover .thumb-bg { opacity: 0.4; transform: scale(1.05); }
.thumb-bg-1 { background-image: linear-gradient(135deg, #1E1E1E, #331500, #FF6B00); }
.thumb-bg-2 { background-image: linear-gradient(135deg, #1E1E1E, #001f33, #0099ff); }
.thumb-bg-3 { background-image: linear-gradient(135deg, #1E1E1E, #1a0033, #9900ff); }
.thumb-bg-4 { background-image: linear-gradient(135deg, #1E1E1E, #33001a, #ff0066); }
.thumb-bg-5 { background-image: linear-gradient(135deg, #1E1E1E, #00331a, #00ff66); }
.thumb-bg-6 { background-image: linear-gradient(135deg, #1E1E1E, #333300, #ffff00); }

.thumb-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.thumb-play { width: 64px; height: 64px; background: rgba(255, 107, 0, 0.9); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: white; padding-left: 4px; box-shadow: 0 0 30px rgba(255, 107, 0, 0.5); transition: 0.3s; }
.portfolio-card:hover .thumb-play { transform: scale(1.1); background: var(--accent); }

.thumb-label-top { position: absolute; top: 16px; left: 16px; background: rgba(0,0,0,0.6); padding: 6px 12px; border-radius: 50px; font-size: 0.8rem; font-weight: bold; backdrop-filter: blur(4px); }

.portfolio-info { padding: 24px; }
.portfolio-tag { color: var(--accent); font-size: 0.8rem; font-weight: bold; text-transform: uppercase; letter-spacing: 0.05em; display: block; margin-bottom: 8px; }
.portfolio-cta { text-align: center; }

/* Process */
.process-section { background: var(--bg); }
.process-timeline { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
.process-step { flex: 1; text-align: center; }
.step-number { display: inline-block; padding: 6px 16px; background: rgba(255, 107, 0, 0.1); border: 1px solid var(--border); border-radius: 50px; font-weight: bold; color: var(--accent); margin-bottom: 24px; }
.step-content { background: var(--card-bg); border: 1px solid var(--border-subtle); padding: 32px 24px; border-radius: var(--radius-lg); transition: 0.3s; }
.step-content:hover { border-color: var(--border); transform: translateY(-8px); }
.step-icon { font-size: 2.5rem; margin-bottom: 16px; }
.process-arrow { color: var(--border); font-size: 2rem; margin-top: 80px; }

/* Tiers */
.tiers-section { background: var(--bg-2); }
.tiers-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; margin-bottom: 40px; }
.tier-card { background: var(--card-bg); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 40px 32px; position: relative; transition: 0.3s; }
.tier-card:hover { transform: translateY(-8px); border-color: var(--border); }

.tier-popular { border-color: var(--accent); background: linear-gradient(180deg, rgba(255, 107, 0, 0.05) 0%, var(--card-bg) 100%); transform: scale(1.05); }
.tier-popular:hover { transform: scale(1.05) translateY(-8px); }
.tier-popular-badge { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); background: var(--accent); color: white; padding: 6px 24px; border-radius: 50px; font-weight: bold; font-size: 0.9rem; box-shadow: var(--shadow-accent); }

.tier-header { text-align: center; padding-bottom: 24px; border-bottom: 1px solid var(--border-subtle); margin-bottom: 24px; }
.tier-icon { font-size: 2.5rem; margin-bottom: 16px; }
.tier-name { margin-bottom: 8px; font-size: 1.5rem; }

.tier-features { list-style: none; margin-bottom: 32px; }
.tier-features li { display: flex; gap: 12px; margin-bottom: 16px; font-size: 0.95rem; }
.check { color: var(--accent); font-weight: bold; }

.tier-price-note { font-size: 0.85rem; color: var(--text-dim); text-align: center; margin-bottom: 16px; }

/* Audience */
.audience-section { background: var(--bg); }
.audience-inner { display: grid; grid-template-columns: 1fr; max-width: 800px; margin: 0 auto; gap: 64px; align-items: center; }
.audience-list { list-style: none; margin: 32px 0; }
.audience-list li { display: flex; gap: 16px; margin-bottom: 24px; }
.audience-check { font-size: 1.5rem; }
.audience-list strong { display: block; font-size: 1.1rem; margin-bottom: 4px; color: var(--text); }
.audience-disclaimer { background: rgba(255, 107, 0, 0.05); border: 1px solid var(--border); padding: 16px; border-radius: var(--radius); font-size: 0.85rem; color: var(--text-muted); }

.audience-visual { display: flex; justify-content: center; }
.audience-phone { width: 260px; height: 520px; border: 4px solid var(--border); border-radius: 40px; padding: 16px; background: var(--bg-3); position: relative; box-shadow: var(--shadow-accent); animation: float 6s infinite alternate; }
.aud-phone-inner { width: 100%; height: 100%; background: #111; border-radius: 24px; display: flex; flex-direction: column; overflow: hidden; }
.aud-video-mock { flex: 1; background: linear-gradient(45deg, #1a0a00, #331400); display: flex; flex-direction: column; justify-content: center; align-items: center; position: relative; }
.aud-play { width: 56px; height: 56px; background: rgba(255, 107, 0, 0.8); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.2rem; padding-left: 4px; }
.aud-stats { padding: 16px; background: #000; display: flex; justify-content: space-around; }
.aud-stat { text-align: center; font-size: 0.8rem; color: #888; }
.aud-stat span { display: block; font-size: 1.2rem; color: white; margin-bottom: 4px; }

/* FAQ */
.faq-section { background: var(--bg-2); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-subtle); }
.faq-q { width: 100%; text-align: left; background: none; border: none; padding: 24px 0; font-size: 1.1rem; font-weight: 600; color: var(--text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-family: var(--font); }
.faq-q:hover { color: var(--accent); }
.faq-icon { font-size: 1.5rem; color: var(--accent); transition: 0.3s; }
.faq-q[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-a { padding-bottom: 24px; color: var(--text-muted); line-height: 1.8; }

/* Final CTA */
.final-cta-section { background: linear-gradient(180deg, var(--bg-2) 0%, #000 100%); text-align: center; position: relative; overflow: hidden; }
.final-cta-bg { position: absolute; inset: 0; background: radial-gradient(circle at center, rgba(255,107,0,0.15) 0%, transparent 60%); }
.final-cta-inner { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.final-cta-title { margin-bottom: 24px; }
.final-cta-desc { font-size: 1.2rem; margin-bottom: 40px; }
.final-cta-btns { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin-bottom: 40px; }
.final-cta-trust { display: flex; justify-content: center; gap: 32px; font-size: 0.95rem; font-weight: 500; color: var(--text-dim); flex-wrap: wrap; }

/* Footer */
.footer { background: #000; padding-top: 80px; border-top: 1px solid var(--border-subtle); }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 64px; margin-bottom: 64px; }
.footer-brand p { margin-top: 24px; font-size: 0.95rem; }
.footer h4 { margin-bottom: 24px; font-size: 1.1rem; color: white; }
.footer-contact ul { list-style: none; }
.footer-contact li { margin-bottom: 16px; }
.footer-contact a { color: var(--text-muted); transition: 0.3s; display: flex; align-items: center; gap: 12px; }
.footer-contact a:hover { color: var(--accent); }
.social-links { display: flex; flex-direction: column; gap: 12px; }
.social-btn { display: flex; align-items: center; gap: 12px; padding: 12px 20px; background: rgba(255,255,255,0.05); border-radius: var(--radius); transition: 0.3s; border: 1px solid transparent; }
.social-btn:hover { background: rgba(255,107,0,0.1); border-color: var(--border); color: var(--accent); transform: translateX(8px); }
.social-line:hover { background: rgba(6,199,85,0.1); border-color: #06C755; color: #06C755; }
.footer-bottom { border-top: 1px solid var(--border-subtle); padding: 24px 0; text-align: center; font-size: 0.9rem; color: var(--text-dim); display: flex; justify-content: space-between; align-items: center; }

/* Sticky Mobile CTA */
.sticky-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; padding: 16px; background: rgba(0,0,0,0.9); backdrop-filter: blur(10px); border-top: 1px solid var(--border-subtle); z-index: 99; gap: 12px; transition: 0.3s; }
.sticky-btn { flex: 1; padding: 14px; text-align: center; border-radius: var(--radius); font-weight: bold; font-size: 1rem; display: flex; justify-content: center; align-items: center; gap: 8px; }
.sticky-btn-line { background: var(--accent); color: white; }
.sticky-btn-brief { background: rgba(255,255,255,0.1); color: white; }

/* Back to Top */
.back-to-top { position: fixed; bottom: 32px; right: 32px; width: 48px; height: 48px; border-radius: 50%; background: var(--accent); color: white; border: none; font-size: 1.2rem; cursor: pointer; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: 0.3s; z-index: 98; box-shadow: var(--shadow-accent); }
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-4px); background: var(--accent-dark); }

/* Responsive */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-content { margin: 0 auto; display: flex; flex-direction: column; align-items: center; margin: 0 auto; }
  .hero-trust, .hero-cta { justify-content: center; }
  .hero-visual { height: 400px; }
  .process-timeline { flex-direction: column; align-items: center; gap: 32px; }
  .process-arrow { display: none; }
  .audience-inner { grid-template-columns: 1fr; text-align: center; }
  .audience-list li { flex-direction: column; align-items: center; text-align: center; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .tier-popular { transform: scale(1); }
  .tier-popular:hover { transform: translateY(-8px); }
  .footer-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .footer-contact a, .social-btn { justify-content: center; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .sticky-cta { display: flex; }
  .back-to-top { bottom: 90px; right: 16px; }
}
@media (max-width: 480px) {
  h1 { font-size: 2.2rem; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }
  .final-cta-btns { flex-direction: column; }
}

.portfolio-empty-state { text-align: center; padding: 64px 32px; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-lg); backdrop-filter: blur(10px); max-width: 800px; margin: 0 auto 48px auto; }
.empty-state-icon { display: inline-flex; justify-content: center; align-items: center; width: 80px; height: 80px; background: rgba(255, 107, 0, 0.1); border-radius: 50%; margin-bottom: 24px; }
.portfolio-empty-state h3 { font-size: 1.5rem; color: var(--text); margin-bottom: 16px; }
.portfolio-empty-state p { color: var(--text-muted); line-height: 1.8; margin-bottom: 32px; font-size: 1.05rem; }