/* =============================================================
   HabBraTech – style.css
   Design: Premium Apple-inspired minimalism
   Fonts: DM Serif Display + DM Sans
   ============================================================= */

/* ----- CSS Custom Properties ----- */
:root {
  --white:       #FFFFFF;
  --black:       #000000;
  --gray-50:     #F9F9FB;
  --gray-100:    #F5F5F7;
  --gray-200:    #E8E8ED;
  --gray-300:    #D2D2D7;
  --gray-400:    #AEAEB2;
  --gray-600:    #636366;
  --gray-700:    #3A3A3C;
  --gray-800:    #2C2C2E;
  --gray-900:    #1D1D1F;
  --blue:        #0071E3;
  --blue-dark:   #0077ED;
  --blue-light:  #E8F1FC;

  --shadow-sm:   0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg:   0 12px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-xl:   0 24px 64px rgba(0,0,0,0.12);

  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --radius-xl:   28px;
  --radius-full: 9999px;

  --font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'DM Serif Display', Georgia, serif;

  --transition:  all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --container:   1160px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }
address { font-style: normal; }
input, textarea, button, select { font-family: inherit; }

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

/* ----- Container ----- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- Section Headers ----- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-overline {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--gray-900);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 1.0625rem;
  color: var(--gray-600);
  max-width: 560px;
  margin: 0 auto;
}

/* ----- Buttons ----- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 113, 227, 0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--gray-900);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-secondary:hover {
  border-color: var(--gray-400);
  background: var(--gray-50);
  transform: translateY(-1px);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--gray-600);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 0;
  margin-top: 16px;
  transition: var(--transition);
}
.btn-back:hover { color: var(--gray-900); }

/* ----- Animations ----- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50%       { transform: translateY(-16px) rotate(2deg); }
}
@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -20px) scale(1.05); }
  66%       { transform: translate(-20px, 15px) scale(0.96); }
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50%       { transform: translateY(8px); opacity: 0.4; }
}

.animate-fade-up {
  animation: fadeUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* ================================================================
   NAVIGATION
================================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--transition);
}

#header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.03em;
  color: var(--gray-900);
  text-decoration: none;
}
.logo-icon {
  font-size: 1.5rem;
  color: var(--blue);
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-link {
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  text-decoration: none;
}
.nav-link:hover { color: var(--gray-900); background: var(--gray-100); }

.nav-cta {
  display: inline-flex;
  padding: 9px 20px;
  background: var(--blue);
  color: var(--white);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  margin-left: 8px;
  text-decoration: none;
}
.nav-cta:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0,113,227,0.3);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-900);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 24px 24px;
  z-index: 999;
  transform: translateY(-100%);
  opacity: 0;
  transition: var(--transition);
}
.mobile-menu.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}
.mobile-link {
  display: block;
  padding: 14px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-900);
  border-bottom: 1px solid var(--gray-100);
  text-decoration: none;
  transition: var(--transition);
}
.mobile-link:hover { color: var(--blue); }
.mobile-cta {
  border: none;
  color: var(--blue);
  font-weight: 600;
  margin-top: 8px;
}

/* ================================================================
   HERO
================================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 120px 24px 80px;
  max-width: var(--container);
  margin: 0 auto;
  overflow: hidden;
}

.hero-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
}
.hero-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,113,227,0.18) 0%, transparent 70%);
  top: -100px; right: -100px;
  animation: orb-drift 12s ease-in-out infinite;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(0,113,227,0.10) 0%, transparent 70%);
  bottom: 100px; left: -80px;
  animation: orb-drift 16s ease-in-out infinite reverse;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 28px;
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--gray-900);
  margin-bottom: 24px;
}
.hero-title em {
  font-style: italic;
  color: var(--blue);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-item { display: flex; flex-direction: column; }
.trust-item strong {
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--gray-900);
}
.trust-item span { font-size: 0.8rem; color: var(--gray-600); }
.trust-divider {
  width: 1px; height: 40px;
  background: var(--gray-200);
}

/* Device Mockup */
.hero-visual {
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.device-mockup {
  width: 200px;
  height: 380px;
  background: linear-gradient(145deg, #2C2C2E, #1D1D1F);
  border-radius: 36px;
  position: relative;
  box-shadow:
    0 40px 80px rgba(0,0,0,0.3),
    0 0 0 1.5px rgba(255,255,255,0.1) inset,
    0 8px 32px rgba(0,0,0,0.2);
  animation: float 6s ease-in-out infinite;
}
.device-screen {
  position: absolute;
  inset: 8px;
  background: linear-gradient(160deg, #0a0a0a, #111);
  border-radius: 28px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.screen-notch {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 100px; height: 26px;
  background: #0a0a0a;
  border-radius: 0 0 16px 16px;
}
.screen-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.screen-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0071E3, #0084FF);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: white;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(0,113,227,0.5);
}
.screen-content p {
  color: rgba(255,255,255,0.85);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.device-button {
  position: absolute;
  right: -3px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 50px;
  background: linear-gradient(180deg, #555, #333);
  border-radius: 2px 0 0 2px;
}
.device-glow {
  position: absolute;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0,113,227,0.3), transparent 70%);
  bottom: -60px;
  filter: blur(30px);
  border-radius: 50%;
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 24px; height: 40px;
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-full);
}
.scroll-dot {
  width: 4px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--gray-400);
  margin-top: 6px;
  animation: scroll-bounce 1.6s ease-in-out infinite;
}

/* ================================================================
   ADVANTAGES STRIP
================================================================ */
.advantages-strip {
  background: var(--gray-100);
  padding: 48px 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.adv-icon {
  font-size: 1.75rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}
.adv-content { display: flex; flex-direction: column; }
.adv-content strong {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 3px;
}
.adv-content span { font-size: 0.8125rem; color: var(--gray-600); line-height: 1.5; }

/* ================================================================
   SERVICES
================================================================ */
.services {
  padding: 100px 0;
  background: var(--white);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  padding: 36px 28px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gray-300);
}
.service-card-featured {
  background: var(--gray-900);
  border-color: var(--gray-800);
  color: var(--white);
}
.service-card-featured .service-title,
.service-card-featured .service-list li,
.service-card-featured .service-link { color: var(--white); }
.service-card-featured .service-list { border-color: rgba(255,255,255,0.08); }
.service-card-featured .service-list li { border-color: rgba(255,255,255,0.06); }
.service-card-featured .service-icon-wrap {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.1);
}
.service-card-featured .service-link { opacity: 0.8; }
.service-card-featured .service-link:hover { opacity: 1; }

.featured-badge {
  position: absolute;
  top: 20px; right: 20px;
  background: var(--blue);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.service-icon-wrap {
  width: 64px; height: 64px;
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--blue);
  flex-shrink: 0;
}
.service-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--gray-900);
  margin-bottom: 16px;
  line-height: 1.3;
}
.service-list {
  flex: 1;
  border-top: 1px solid var(--gray-200);
  padding-top: 16px;
  margin-bottom: 24px;
}
.service-list li {
  font-size: 0.875rem;
  color: var(--gray-700);
  padding: 7px 0;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 8px;
}
.service-list li::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--blue);
  flex-shrink: 0;
}
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blue);
  transition: var(--transition);
  margin-top: auto;
  text-decoration: none;
}
.service-link:hover { gap: 10px; }

/* ================================================================
   REPAIR TUNNEL
================================================================ */
.repair-section {
  padding: 100px 0;
  background: var(--gray-100);
}

.repair-wrapper { max-width: 680px; margin: 0 auto; }

/* Progress Bar */
.progress-bar-wrap { margin-bottom: 36px; }
.progress-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: none;
}
.step-circle {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid var(--gray-300);
  background: var(--white);
  color: var(--gray-400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
}
.progress-step span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-400);
  transition: var(--transition);
}
.progress-step.active .step-circle {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(0,113,227,0.4);
}
.progress-step.active span { color: var(--blue); font-weight: 600; }
.progress-step.completed .step-circle {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}
.progress-step.completed .step-circle::after {
  content: '✓';
  font-size: 0.9rem;
}
.progress-step.completed span { color: var(--gray-700); }
.progress-line {
  flex: 1;
  height: 2px;
  background: var(--gray-200);
  margin: 0 8px;
  margin-bottom: 24px;
  border-radius: 2px;
  transition: var(--transition);
  position: relative;
}
.progress-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--blue);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.progress-line.active::after { transform: scaleX(1); }

/* Form Card */
.repair-form-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

/* Form Steps */
.form-step { display: none; animation: fadeUp 0.35s ease; }
.form-step.active { display: block; }

.step-title {
  font-family: var(--font-display);
  font-size: 1.625rem;
  color: var(--gray-900);
  margin-bottom: 28px;
  line-height: 1.3;
}

/* Device Grid */
.device-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.device-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 20px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
}
.device-btn:hover {
  border-color: var(--blue);
  background: var(--blue-light);
  transform: translateY(-2px);
}
.device-btn.selected {
  border-color: var(--blue);
  background: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.15);
}
.device-btn[aria-pressed="true"] {
  border-color: var(--blue);
  background: var(--blue-light);
}
.device-btn-icon { color: var(--blue); }
.device-btn-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-900);
}

/* Model Grid */
.model-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 8px;
}
.model-btn {
  padding: 14px 18px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-800);
  text-align: left;
  transition: var(--transition);
  cursor: pointer;
}
.model-btn:hover {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--blue);
}
.model-btn.selected {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--blue);
  font-weight: 600;
}

/* Problem Grid */
.problem-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}
.problem-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-800);
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}
.problem-btn:hover {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--blue);
}
.problem-btn.selected {
  border-color: var(--blue);
  background: var(--blue-light);
  color: var(--blue);
  font-weight: 600;
}
.problem-btn-arrow {
  opacity: 0;
  transition: var(--transition);
  color: var(--blue);
}
.problem-btn:hover .problem-btn-arrow,
.problem-btn.selected .problem-btn-arrow { opacity: 1; }

/* Repair Summary */
.repair-summary {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 16px 20px;
  background: var(--blue-light);
  border: 1px solid rgba(0,113,227,0.2);
  border-radius: var(--radius-md);
  margin-bottom: 28px;
  font-size: 0.875rem;
}
.summary-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: white;
  border: 1px solid rgba(0,113,227,0.2);
  color: var(--blue);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  font-weight: 600;
  font-size: 0.8125rem;
}
.summary-sep { color: var(--gray-400); }

/* Form Fields */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
}
.form-optional { font-weight: 400; color: var(--gray-400); font-size: 0.8125rem; }
.form-input, .form-textarea {
  width: 100%;
  padding: 13px 16px;
  background: var(--gray-50);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--gray-900);
  transition: var(--transition);
  outline: none;
  resize: vertical;
}
.form-input:focus, .form-textarea:focus {
  border-color: var(--blue);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.12);
}
.form-input.error, .form-textarea.error {
  border-color: #FF3B30;
  background: #FFF5F5;
}
.form-error {
  display: block;
  font-size: 0.8rem;
  color: #FF3B30;
  margin-top: 5px;
  min-height: 16px;
}

/* Payment Notice */
.payment-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 18px;
  background: #F0FDF4;
  border: 1px solid #BBF7D0;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: #166534;
  margin-bottom: 24px;
  line-height: 1.5;
}
.payment-notice svg { flex-shrink: 0; margin-top: 2px; }

/* Submit Button */
.btn-submit {
  width: 100%;
  padding: 16px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: var(--transition);
}
.btn-submit:hover:not(:disabled) {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,113,227,0.35);
}
.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; }
.spinner { animation: spin 1s linear infinite; }

/* Success State */
.success-state {
  text-align: center;
  padding: 20px 0;
}
.success-icon {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: #F0FDF4;
  border: 2px solid #BBF7D0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: #16a34a;
}
.success-title {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--gray-900);
  margin-bottom: 12px;
}
.success-desc { font-size: 1rem; color: var(--gray-600); margin-bottom: 20px; }
.success-info {
  padding: 14px 20px;
  background: var(--blue-light);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--blue);
  display: inline-block;
}
.success-info a { font-weight: 700; color: var(--blue); }

/* ================================================================
   FAQ
================================================================ */
.faq-section {
  padding: 100px 0;
  background: var(--white);
}
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-item {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--gray-300); }
.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  transition: var(--transition);
}
.faq-question:hover { color: var(--blue); }
.faq-arrow { flex-shrink: 0; transition: transform 0.3s ease; color: var(--gray-400); }
.faq-question[aria-expanded="true"] .faq-arrow { transform: rotate(180deg); color: var(--blue); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-answer > div {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--gray-700);
  line-height: 1.7;
  border-top: 1px solid var(--gray-200);
  padding-top: 16px;
}
.faq-answer.open { max-height: 400px; }

/* ================================================================
   CONTACT
================================================================ */
.contact-section {
  padding: 100px 0;
  background: var(--gray-100);
}
.contact-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 32px;
  align-items: stretch;
}
.contact-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-md);
  height: 100%;
}
.contact-info-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--gray-900);
  margin-bottom: 28px;
  line-height: 1.2;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  color: var(--gray-600);
  font-size: 0.9375rem;
}
.contact-item svg { flex-shrink: 0; color: var(--blue); margin-top: 2px; }
.contact-link { color: var(--gray-800); font-weight: 500; transition: var(--transition); }
.contact-link:hover { color: var(--blue); }
.contact-address { color: var(--gray-700); line-height: 1.7; }

.contact-hours {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  margin: 24px 0;
}
.contact-hours h4 {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 12px;
}
.contact-hours ul { display: flex; flex-direction: column; gap: 8px; }
.contact-hours li {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--gray-700);
}
.contact-hours li span:first-child { font-weight: 500; }

.contact-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.map-container {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  min-height: 420px;
}
.map-container iframe { display: block; }

/* ================================================================
   FOOTER
================================================================ */
.footer {
  background: var(--gray-900);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 56px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.footer-logo .logo-icon { color: var(--blue); }
.footer-tagline {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 20px;
  color: rgba(255,255,255,0.55);
}
.footer-address {
  font-size: 0.8125rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.45);
}
.footer-address a {
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-address a:hover { color: var(--white); }

.footer-nav-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 16px;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--white); }

.footer-cta p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
  line-height: 1.6;
}
.footer-call-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  background: var(--blue);
  color: var(--white);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
  margin-bottom: 14px;
  text-decoration: none;
}
.footer-call-btn:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.payment-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}
.footer-bottom p { font-size: 0.8125rem; color: rgba(255,255,255,0.35); }
.footer-keywords { font-size: 0.75rem !important; color: rgba(255,255,255,0.2) !important; }

/* ================================================================
   FLOATING CALL BUTTON
================================================================ */
.floating-call {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #34C759;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(52,199,89,0.45);
  transition: var(--transition);
  text-decoration: none;
}
.floating-call:hover {
  background: #28a745;
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(52,199,89,0.6);
}

/* ================================================================
   INTERSECTION OBSERVER ANIMATIONS
================================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ================================================================
   RESPONSIVE
================================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero { flex-direction: column; padding-top: 100px; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero-subtitle { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-visual { display: none; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .repair-form-card { padding: 28px 20px; }
  .device-grid { grid-template-columns: repeat(2, 1fr); }
  .model-grid { grid-template-columns: 1fr; }
  .contact-actions { flex-direction: column; }
  .progress-step span { display: none; }
  .progress-steps { gap: 4px; }
  .contact-grid { min-height: auto; }
  .map-container { min-height: 280px; }
  .hero-badge { font-size: 0.75rem; }
}

@media (max-width: 480px) {
  .hero { padding: 90px 16px 60px; }
  .container { padding: 0 16px; }
  .btn-primary, .btn-secondary { padding: 12px 20px; font-size: 0.875rem; }
  .device-btn { padding: 20px 12px; }
  .repair-form-card { border-radius: var(--radius-lg); }
  .section-title { font-size: 1.75rem; }
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}