/* ============================================
   F3 - Focus Fight FINISH | Global Styles
   getf3.com
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-primary: #0a0a0a;
  --bg-card: #141414;
  --bg-card-hover: #1a1a1a;
  --bg-surface: #111111;
  --bg-nav: rgba(10, 10, 10, 0.92);

  --red: #DC2626;
  --red-hover: #EF4444;
  --red-glow: rgba(220, 38, 38, 0.25);
  --red-deep: #991B1B;
  --orange: #F59E0B;
  --green: #10B981;

  --text-primary: #FFFFFF;
  --text-secondary: #E0E0E0;
  --text-muted: #9CA3AF;
  --text-subtle: #6B7280;
  --border: #262626;
  --border-hover: #404040;

  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max-width: 1200px;
  --nav-height: 72px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

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

img { max-width: 100%; height: auto; display: block; }
a { color: var(--text-primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--red); }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); font-weight: 600; }

p { color: var(--text-secondary); line-height: 1.7; }
.text-muted { color: var(--text-muted); }
.text-red { color: var(--red); }
.text-center { text-align: center; }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
}

@media (min-width: 768px) {
  section { padding: 7rem 0; }
  .container { padding: 0 2rem; }
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--bg-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
}

.nav-logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav-links {
  display: none;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
  border-radius: 1px;
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-toggle { display: none; }
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  padding: 2rem 1.5rem;
}

.mobile-menu.open { display: flex; flex-direction: column; gap: 1.5rem; }

.mobile-menu a {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:hover { color: var(--text-primary); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--red);
  color: #fff;
  box-shadow: 0 4px 16px var(--red-glow);
}

.btn-primary:hover {
  background: var(--red-hover);
  color: #fff;
  box-shadow: 0 8px 32px var(--red-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-hover);
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  border-radius: 8px;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

/* --- Store Badges --- */
.store-badges {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.store-badge {
  height: 48px;
  border-radius: 8px;
  transition: transform 0.2s var(--ease-out), opacity 0.2s ease;
  opacity: 0.9;
}

.store-badge:hover {
  transform: scale(1.04);
  opacity: 1;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--red-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.4;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.hero-content { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--red);
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero h1 span {
  color: var(--red);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 520px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.hero-stat-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  letter-spacing: 0.02em;
}

/* Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}

.phone-mockup {
  position: relative;
  width: clamp(220px, 55vw, 300px);
}

@media (min-width: 768px) {
  .phone-mockup { width: clamp(260px, 22vw, 320px); }
}

.phone-frame {
  background: #1a1a1a;
  border-radius: 36px;
  padding: 12px;
  box-shadow:
    0 25px 60px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.06),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  animation: float 6s ease-in-out infinite;
}

.phone-frame img {
  border-radius: 26px;
  width: 100%;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-top: 1rem;
  line-height: 1.7;
}

/* --- Feature Cards --- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease-out);
}

.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.15);
}

.feature-card h3 {
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Colored icon variants */
.feature-icon--red { background: rgba(220, 38, 38, 0.1); border-color: rgba(220, 38, 38, 0.2); }
.feature-icon--orange { background: rgba(245, 158, 11, 0.1); border-color: rgba(245, 158, 11, 0.2); }
.feature-icon--green { background: rgba(16, 185, 129, 0.1); border-color: rgba(16, 185, 129, 0.2); }

/* --- Pillar Section (Focus/Fight/Finish) --- */
.pillar-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 5rem;
}

@media (min-width: 768px) {
  .pillar-row { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .pillar-row--reverse .pillar-content { order: 2; }
  .pillar-row--reverse .pillar-visual { order: 1; }
}

.pillar-number {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.pillar-content h2 {
  margin-bottom: 1rem;
}

.pillar-content p {
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.pillar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pillar-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pillar-list li::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.pillar-list--red li::before { background: rgba(220, 38, 38, 0.15); color: var(--red); }
.pillar-list--orange li::before { background: rgba(245, 158, 11, 0.15); color: var(--orange); }
.pillar-list--green li::before { background: rgba(16, 185, 129, 0.15); color: var(--green); }

.pillar-visual {
  display: flex;
  justify-content: center;
}

.pillar-phone {
  width: clamp(200px, 40vw, 260px);
}

.pillar-phone .phone-frame {
  animation: none;
}

/* --- Stats Bar --- */
.stats-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  text-align: center;
}

@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}

.stat-item h3 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--red);
  line-height: 1;
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.3s ease;
}

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

.testimonial-stars {
  color: var(--orange);
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.testimonial-card blockquote {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.testimonial-detail {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--red-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.3;
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
  position: relative;
}

.cta-section p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2rem;
  position: relative;
}

.cta-section .btn {
  position: relative;
}

/* --- About / Origin Story --- */
.story-block {
  max-width: 720px;
  margin: 0 auto;
}

.story-block p {
  font-size: 1.1rem;
  line-height: 1.85;
  margin-bottom: 1.5rem;
}

.story-quote {
  border-left: 3px solid var(--red);
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border-radius: 0 12px 12px 0;
  margin: 2.5rem 0;
}

.story-quote p {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-primary);
  margin-bottom: 0;
}

/* Founder Card */
.founder-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  text-align: center;
  margin-top: 3rem;
}

@media (min-width: 640px) {
  .founder-card {
    flex-direction: row;
    text-align: left;
  }
}

.founder-avatar {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  background: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.founder-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.founder-title {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.founder-socials {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
}

.founder-socials a {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.founder-socials a:hover { color: var(--red); }

/* --- Download Page --- */
.download-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding-top: var(--nav-height);
}

.download-hero h1 {
  margin-bottom: 1rem;
}

.download-hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

.download-badges {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item:hover { border-color: var(--border-hover); }

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
}

.faq-question::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-left: 1rem;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question::after {
  content: '−';
}

.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* --- Footer --- */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-brand img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.65;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  font-size: 0.9rem;
  color: var(--text-subtle);
  transition: color 0.2s ease;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-subtle);
}

.footer-socials {
  display: flex;
  gap: 1.25rem;
}

.footer-socials a {
  color: var(--text-subtle);
  font-size: 0.85rem;
  font-weight: 500;
}

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

/* --- Legal Pages (Privacy/Terms) --- */
.legal-page {
  padding-top: calc(var(--nav-height) + 3rem);
  padding-bottom: 4rem;
}

.legal-page h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 0.5rem;
}

.legal-page .last-updated {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 3rem;
}

.legal-content {
  max-width: 720px;
}

.legal-content h2 {
  font-size: 1.35rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.legal-content p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.75;
}

.legal-content ul {
  margin: 0.75rem 0 1.5rem 1.5rem;
  color: var(--text-muted);
}

.legal-content li {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  line-height: 1.65;
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger > * { transition-delay: calc(var(--i, 0) * 100ms); }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in { opacity: 1; transform: none; }
  .phone-frame { animation: none; }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.divider {
  height: 1px;
  background: var(--border);
  border: none;
}