/* ============================================
   AI Resume Builder — Landing Page Styles
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-20) var(--space-6);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(168, 85, 247, 0.08) 0%, transparent 50%);
  animation: gradientShift 15s ease-in-out infinite;
  background-size: 200% 200%;
}

.hero__particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--clay-bg);
  box-shadow: var(--clay-shadow-out), var(--clay-shadow-in);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-accent);
  margin-bottom: var(--space-8);
  animation: fadeInDown 0.6s ease-out;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, var(--text-7xl));
  font-weight: var(--font-extrabold);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.8s ease-out;
}

.hero__title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  opacity: 0.4;
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto var(--space-10);
  line-height: var(--leading-relaxed);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero__cta {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
}

.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  margin-top: var(--space-16);
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) var(--space-6);
  transition: all var(--transition-base);
  background: transparent;
}

.nav.scrolled {
  top: var(--space-4);
  left: 100px;
  right: 100px;
  padding: var(--space-3) var(--space-6);
  background: rgba(248, 245, 238, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
}

.nav__logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clay-accent-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--clay-accent-shadow-in);
  color: white;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav__link:hover { color: var(--text-primary); }

.nav__cta {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}

.nav__auth-btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  text-decoration: none;
}

/* User Menu */
.nav__user {
  position: relative;
}

.nav__user-btn {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.nav__user-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--clay-accent-bg);
  color: white;
  font-weight: var(--font-bold);
  border-radius: 50%;
  box-shadow: var(--clay-accent-shadow-out), var(--clay-accent-shadow-in);
  transition: transform var(--transition-fast);
}

.nav__user-avatar:hover {
  transform: scale(1.05);
}

.nav__user-dropdown {
  position: absolute;
  top: calc(100% + var(--space-3));
  right: 0;
  min-width: 200px;
  background: var(--clay-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--clay-shadow-out), var(--clay-shadow-in);
  padding: var(--space-3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.nav__user-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__user-info {
  padding: var(--space-2) var(--space-3);
}

.nav__user-name {
  display: block;
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  margin-bottom: 2px;
}

.nav__user-email {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav__user-divider {
  height: 1px;
  background: var(--border-default);
  margin: var(--space-2) 0;
}

.nav__user-logout {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  transition: background var(--transition-fast);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
}

.nav__user-logout:hover {
  background: var(--danger-bg);
}

/* Features */
.features {
  padding: var(--space-32) var(--space-6);
}

.features__header, .how-it-works__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.features__label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--accent-primary);
  margin-bottom: var(--space-4);
}

.features__title {
  font-size: clamp(1.8rem, 4vw, var(--text-4xl));
  margin-bottom: var(--space-4);
}

.features__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  padding: var(--space-8);
  background: var(--clay-bg);
  border: none;
  box-shadow: var(--clay-shadow-out), var(--clay-shadow-in);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--clay-shadow-out-hover), var(--clay-shadow-in-hover);
}

.feature-card:hover::before { opacity: 1; }

.feature-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  box-shadow: var(--clay-shadow-pressed);
  margin-bottom: var(--space-6);
  color: var(--accent-primary);
}

.feature-card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
}

.feature-card__desc {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* How It Works */
.how-it-works {
  padding: var(--space-32) var(--space-6);
  background: var(--bg-secondary);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  max-width: 1000px;
  margin: 0 auto;
}

.step { text-align: center; padding: var(--space-8); }

.step__number {
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  border-radius: var(--radius-full);
  background: var(--clay-accent-bg);
  box-shadow: var(--clay-accent-shadow-out), var(--clay-accent-shadow-in);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: white;
}

.step__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
}

.step__desc { color: var(--text-secondary); line-height: var(--leading-relaxed); }

/* CTA */
.cta-section {
  padding: var(--space-32) var(--space-6);
  text-align: center;
}

.cta-section__inner {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-16);
  background: var(--clay-bg);
  border: none;
  box-shadow: var(--clay-shadow-out), var(--clay-shadow-in);
  border-radius: var(--radius-2xl);
  position: relative;
  overflow: hidden;
}

.cta-section__inner::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(ellipse at center, rgba(104, 179, 130, 0.08) 0%, transparent 70%);
}

.cta-section__title {
  font-size: clamp(1.8rem, 3vw, var(--text-4xl));
  margin-bottom: var(--space-4);
  position: relative;
}

.cta-section__desc {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  position: relative;
}

.cta-section__btn {
  padding: var(--space-4) var(--space-10);
  font-size: var(--text-lg);
  border-radius: var(--radius-lg);
  position: relative;
}

/* Footer */
.footer {
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer__text {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════
   RESPONSIVE — TABLET (≤1024px)
   ═══════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero__title { font-size: 2.5rem; }
  .hero__subtitle { font-size: var(--text-base); max-width: 90%; }
  .hero__actions { flex-direction: column; width: 100%; max-width: 340px; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — PHONE (≤768px)
   ═══════════════════════════════════════════ */
@media (max-width: 768px) {
  /* Navigation */
  .nav__links { display: none; }
  .nav { padding: 0 var(--space-4); }
  .nav__inner { padding: 0; }

  /* Hero */
  .hero { padding: var(--space-16) var(--space-4) var(--space-8); }
  .hero__tag { font-size: 11px; padding: 6px 14px; }
  .hero__title { font-size: 2rem; line-height: 1.2; }
  .hero__subtitle { font-size: var(--text-sm); }
  .hero__stats { flex-direction: column; gap: var(--space-6); }
  .hero__actions { flex-direction: column; gap: var(--space-3); }
  .hero__actions .btn-primary,
  .hero__actions .btn-secondary { width: 100%; justify-content: center; }

  /* Features */
  .features { padding: var(--space-10) var(--space-4); }
  .features__grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .section-title { font-size: var(--text-2xl); }

  /* Steps */
  .steps-section { padding: var(--space-10) var(--space-4); }
  .steps { grid-template-columns: 1fr; gap: var(--space-4); }

  /* CTA */
  .cta-section__inner { padding: var(--space-8) var(--space-4); }
  .cta-section__title { font-size: var(--text-2xl); }
  .cta-section__btn { width: 100%; justify-content: center; }

  /* Footer */
  .footer { padding: var(--space-6) var(--space-4); }
}

/* ═══════════════════════════════════════════
   RESPONSIVE — SMALL PHONE (≤480px)
   ═══════════════════════════════════════════ */
@media (max-width: 480px) {
  .hero__title { font-size: 1.6rem; }
  .hero__subtitle { font-size: 13px; }
  .hero { padding: var(--space-12) var(--space-3) var(--space-6); }
  .nav__logo-text { font-size: var(--text-sm); }
  .features__grid { gap: var(--space-3); }
  .feature-card { padding: var(--space-4); }
  .feature-card__title { font-size: var(--text-base); }
  .stat__value { font-size: var(--text-3xl); }
}

/* Brand Marquee */
.brand-marquee {
  padding: var(--space-8) 0;
  background: var(--bg-primary);
  overflow: hidden;
  position: relative;
}

.brand-marquee::before,
.brand-marquee::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
}

.brand-marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-primary), transparent);
}

.brand-marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-primary), transparent);
}

.brand-marquee__inner {
  width: 100%;
  overflow: hidden;
}

.brand-marquee__track {
  display: flex;
  gap: var(--space-16);
  width: max-content;
  animation: scrollMarquee 30s linear infinite;
  align-items: center;
}

.brand-logo {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.5;
  transition: all var(--transition-base);
  padding: 0 var(--space-8);
}

.brand-logo:hover {
  opacity: 1;
  color: var(--accent-primary);
  transform: scale(1.05);
}

@keyframes scrollMarquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-50% - (var(--space-16) / 2))); }
}

/* Parallax Clay Blobs */
.clay-blob {
  position: absolute;
  border-radius: 50%;
  background: var(--clay-bg);
  box-shadow: var(--clay-shadow-out), var(--clay-shadow-in);
  z-index: 0;
  animation: float 6s ease-in-out infinite;
}

.clay-blob-1 {
  width: 120px; height: 120px;
  top: 15%; left: 10%;
  animation-delay: 0s;
}

.clay-blob-2 {
  width: 180px; height: 180px;
  bottom: 20%; right: 10%;
  animation-delay: -3s;
}

@keyframes float {
  0%, 100% { transform: translate(var(--px, 0), var(--py, 0)) translateY(0); }
  50% { transform: translate(var(--px, 0), var(--py, 0)) translateY(-20px); }
}