/* ============================================
   Taxi Go Gabon — Main Styles
   ============================================ */

:root {
  --color-bg: #08080d;
  --color-bg-elevated: #0f0f16;
  --color-bg-card: #14141c;
  --color-bg-card-hover: #1a1a24;
  --color-border: #252530;
  --color-border-light: #2e2e3a;

  --color-accent: #f5c518;
  --color-accent-hover: #ffd84d;
  --color-accent-muted: rgba(245, 197, 24, 0.15);
  --color-accent-glow: rgba(245, 197, 24, 0.25);

  --color-text: #f0f0f5;
  --color-text-muted: #9898a8;
  --color-text-dim: #6a6a7a;

  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px var(--color-accent-glow);

  --header-height: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--color-text-muted);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section__header p {
  margin-top: 16px;
  font-size: 1.125rem;
}

.section__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}

.btn--primary {
  background: var(--color-accent);
  color: #0a0a0f;
  box-shadow: var(--shadow-sm), 0 0 0 0 var(--color-accent-glow);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transform: translateY(-2px);
}

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

.btn--secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-muted);
}

.btn--large {
  padding: 18px 36px;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(8, 8, 13, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.header--scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(8, 8, 13, 0.95);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.logo span {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  margin-left: 8px;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.menu-toggle--active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle--active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle--active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--color-accent-muted);
  border: 1px solid rgba(245, 197, 24, 0.25);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 24px;
}

.hero__badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  margin-bottom: 20px;
}

.hero__title .highlight {
  color: var(--color-accent);
}

.hero__subtitle {
  font-size: 1.25rem;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition);
}

.hero__card:hover {
  transform: translateY(-8px);
}

.hero__card img {
  width: 100%;
  max-width: 380px;
}

.hero__stats {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero__stats-icon {
  width: 44px;
  height: 44px;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.hero__stats-text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: var(--color-text);
}

.hero__stats-text span {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

/* Benefits */
.benefits {
  background: var(--color-bg-elevated);
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.benefit-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.benefit-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.benefit-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: transform var(--transition);
}

.benefit-card:hover .benefit-card__icon {
  transform: scale(1.1);
}

.benefit-card h3 {
  margin-bottom: 10px;
  color: var(--color-text);
}

.benefit-card p {
  font-size: 0.9375rem;
}

/* Drivers */
.drivers__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.drivers__text h2 {
  margin-bottom: 20px;
}

.drivers__text p {
  font-size: 1.0625rem;
  margin-bottom: 16px;
}

.drivers__features {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.drivers__feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.drivers__feature-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0a0a0f;
  font-size: 0.875rem;
  font-weight: 700;
}

.drivers__feature span {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.drivers__visual {
  position: relative;
}

.drivers__image-card {
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-elevated) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.drivers__image-card .emoji {
  font-size: 5rem;
  margin-bottom: 24px;
  display: block;
}

.drivers__image-card h3 {
  color: var(--color-accent);
  margin-bottom: 8px;
}

.drivers__image-card p {
  font-size: 0.9375rem;
}

/* How it works */
.how {
  background: var(--color-bg-elevated);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border) 0%, var(--color-accent) 50%, var(--color-border) 100%);
  z-index: 0;
}

.step-card {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 12px;
}

.step-card__number {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: var(--color-bg-card);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  box-shadow: var(--shadow-glow);
  transition: all var(--transition);
}

.step-card:hover .step-card__number {
  background: var(--color-accent);
  color: #0a0a0f;
  transform: scale(1.08);
}

.step-card h3 {
  margin-bottom: 10px;
  color: var(--color-text);
}

.step-card p {
  font-size: 0.875rem;
}

/* Requirements */
.requirements__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.requirement-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}

.requirement-item:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-card-hover);
  transform: translateX(6px);
}

.requirement-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.requirement-item span {
  font-weight: 500;
  color: var(--color-text);
}

/* FAQ */
.faq {
  background: var(--color-bg-elevated);
}

.faq__list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq__item--active {
  border-color: var(--color-accent);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: color var(--transition);
}

.faq__question:hover {
  color: var(--color-accent);
}

.faq__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--color-border-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  color: var(--color-accent);
  transition: all var(--transition);
}

.faq__item--active .faq__icon {
  background: var(--color-accent);
  color: #0a0a0f;
  border-color: var(--color-accent);
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq__answer-inner {
  padding: 0 24px 22px;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* Contact */
.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact__info h2 {
  margin-bottom: 16px;
}

.contact__info > p {
  font-size: 1.0625rem;
  margin-bottom: 32px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact__detail-icon {
  width: 44px;
  height: 44px;
  background: var(--color-accent-muted);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

.contact__detail-text strong {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-dim);
  font-weight: 500;
  margin-bottom: 2px;
}

.contact__detail-text span {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.contact__form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-optional {
  font-weight: 400;
  color: var(--color-text-dim);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-dim);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239898a8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.contact__form .btn {
  width: 100%;
  margin-top: 8px;
}

.btn--loading {
  pointer-events: none;
  opacity: 0.85;
}

.btn--loading .btn__text {
  opacity: 0;
}

.btn__loader {
  display: none;
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2.5px solid rgba(10, 10, 15, 0.2);
  border-top-color: #0a0a0f;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn--loading .btn__loader {
  display: block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-message {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.form-message--error {
  background: rgba(220, 53, 69, 0.12);
  border: 1px solid rgba(220, 53, 69, 0.35);
  color: #f5a5ad;
}

.form-success {
  display: none;
  text-align: center;
  padding: 48px 24px;
}

.form-success--visible {
  display: block;
}

.form-success__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-accent-muted);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.form-success h3 {
  color: var(--color-accent);
  margin-bottom: 10px;
}

.form-success p {
  font-size: 1rem;
}

.contact__form--hidden {
  display: none;
}

/* Footer */
.footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand .logo {
  margin-bottom: 16px;
  display: inline-block;
}

.footer__brand p {
  font-size: 0.9375rem;
  max-width: 320px;
  margin-bottom: 12px;
}

.footer__location {
  font-size: 0.875rem;
  color: var(--color-text-dim);
}

.footer__heading {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin-bottom: 20px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.footer__links a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__bottom p {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

.footer__placeholder {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  font-style: italic;
}

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }