/* ==========================================================================
   Matanga Tbilisi Landing — style.css
   Mobile-first, responsive, no dependencies
   ========================================================================== */

:root {
  --color-primary: #8B5CF6;
  --color-primary-light: #A78BFA;
  --color-primary-dark: #7C3AED;
  --color-secondary: #F59E0B;
  --color-secondary-light: #FBBF24;
  --color-bg: #0F172A;
  --color-bg-elevated: #1E293B;
  --color-bg-card: #1E293B;
  --color-bg-card-hover: #334155;
  --color-text: #F8FAFC;
  --color-text-muted: #94A3B8;
  --color-border: rgba(148, 163, 184, 0.15);
  --color-border-accent: rgba(139, 92, 246, 0.4);

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.25);

  --header-height: 72px;
  --container-max: 1200px;
  --container-narrow: 720px;
  --transition: 0.25s ease;
}

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

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

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

a:hover {
  color: var(--color-secondary);
}

strong {
  color: var(--color-text);
  font-weight: 600;
}

em {
  font-style: normal;
  color: var(--color-primary-light);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn__icon {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.btn:hover .btn__icon {
  transform: translateX(4px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(139, 92, 246, 0.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary-light);
  border-color: var(--color-border-accent);
}

.btn--outline:hover {
  background: rgba(139, 92, 246, 0.1);
  color: var(--color-text);
  border-color: var(--color-primary);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

.btn--xl {
  padding: 1.125rem 2.25rem;
  font-size: 1.125rem;
}

/* Header / Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.125rem;
  text-decoration: none;
}

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

.nav__logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 1.125rem;
  color: #fff;
}

.nav__logo-text em {
  font-weight: 600;
}

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  z-index: 1001;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav__menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  height: 100dvh;
  padding: calc(var(--header-height) + 1.5rem) 1.5rem 2rem;
  background: var(--color-bg-elevated);
  border-left: 1px solid var(--color-border);
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 1000;
}

.nav__menu--open {
  transform: translateX(0);
}

.nav__link {
  display: block;
  padding: 0.875rem 1rem;
  color: var(--color-text-muted);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav__link:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

.nav__cta {
  margin-top: 1rem;
  width: 100%;
}

.nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 999;
}

.nav__overlay--visible {
  opacity: 1;
  visibility: visible;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(139, 92, 246, 0.2) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
    var(--color-bg);
  z-index: 0;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  z-index: 0;
  pointer-events: none;
}

.hero__glow--1 {
  width: 400px;
  height: 400px;
  background: var(--color-primary);
  top: -100px;
  right: -100px;
}

.hero__glow--2 {
  width: 300px;
  height: 300px;
  background: var(--color-secondary);
  bottom: 10%;
  left: -80px;
  opacity: 0.2;
}

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

.hero__badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-secondary);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 999px;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  max-width: 18ch;
  margin-left: auto;
  margin-right: auto;
}

.hero__title-accent {
  display: block;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 42rem;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3.5rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.hero__stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section__header {
  margin-bottom: 3rem;
}

.section__header--center {
  text-align: center;
}

.section__header--center .section__desc {
  margin-left: auto;
  margin-right: auto;
}

.section__label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: 0.75rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section__desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 36rem;
  line-height: 1.7;
}

/* About / Features */
.about {
  background: var(--color-bg);
}

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

.feature-card {
  padding: 2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 1.25rem;
  background: rgba(139, 92, 246, 0.15);
  border-radius: var(--radius-md);
  color: var(--color-primary-light);
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.feature-card__text {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* Services */
.services {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 50%, var(--color-bg) 100%);
}

.service-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  padding: 2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

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

.service-card--featured {
  border-color: var(--color-border-accent);
  background: linear-gradient(145deg, rgba(139, 92, 246, 0.12) 0%, var(--color-bg-card) 60%);
  box-shadow: var(--shadow-glow);
}

.service-card__header {
  margin-bottom: 1rem;
}

.service-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.625rem;
  margin-bottom: 0.75rem;
  background: rgba(139, 92, 246, 0.2);
  color: var(--color-primary-light);
  border-radius: 999px;
}

.service-card__badge--accent {
  background: rgba(245, 158, 11, 0.2);
  color: var(--color-secondary);
}

.service-card__title {
  font-size: 1.5rem;
  font-weight: 700;
}

.service-card__text {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex: 1;
  line-height: 1.65;
}

.service-card__list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.service-card__list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.service-card__cta {
  width: 100%;
  margin-top: auto;
}

/* How It Works */
.how {
  background: var(--color-bg);
}

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.step {
  display: flex;
  gap: 1.5rem;
  padding: 1.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

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

.step__number {
  flex-shrink: 0;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.6;
}

.step__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.step__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.how__cta {
  text-align: center;
}

/* Testimonials */
.testimonials {
  background: var(--color-bg-elevated);
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding: 2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.stats-bar__item {
  text-align: center;
}

.stats-bar__value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary-light);
  margin-bottom: 0.25rem;
}

.stats-bar__label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.testimonial-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.testimonial-card {
  padding: 1.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin: 0;
}

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

.testimonial-card__text::before {
  content: '"';
  color: var(--color-primary);
  font-size: 1.5rem;
  font-style: normal;
}

.testimonial-card__author {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.testimonial-card__name {
  font-weight: 600;
  font-size: 0.9375rem;
}

.testimonial-card__location {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

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

.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.accordion__item--open {
  border-color: var(--color-border-accent);
}

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

.accordion__trigger:hover {
  background: rgba(255, 255, 255, 0.03);
}

.accordion__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  background: var(--color-primary-light);
  border-radius: 2px;
  transition: transform var(--transition);
}

.accordion__icon::before {
  width: 12px;
  height: 2px;
  top: 9px;
  left: 4px;
}

.accordion__icon::after {
  width: 2px;
  height: 12px;
  top: 4px;
  left: 9px;
}

.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: scaleY(0);
}

.accordion__panel {
  padding: 0 1.5rem 1.25rem;
}

.accordion__panel[hidden] {
  display: none;
}

.accordion__panel p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.accordion__panel a {
  color: var(--color-primary-light);
  text-decoration: underline;
}

/* Contact */
.contact {
  padding-bottom: 5rem;
}

.contact__box {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding: 3rem 2rem;
  background: linear-gradient(145deg, rgba(139, 92, 246, 0.15) 0%, var(--color-bg-card) 50%);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
}

.contact__text {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin: 1rem 0 1.5rem;
}

.contact__location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.contact__location svg {
  color: var(--color-secondary);
}

.contact__cta {
  text-align: center;
}

.contact__note {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Footer */
.footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

.footer__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.footer__tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}

.footer__nav a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
}

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

.footer__copy {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer__keywords {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  opacity: 0.6;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__content > * {
  animation: fadeInUp 0.7s ease backwards;
}

.hero__badge { animation-delay: 0.1s; }
.hero__title { animation-delay: 0.2s; }
.hero__subtitle { animation-delay: 0.3s; }
.hero__actions { animation-delay: 0.4s; }
.hero__stats { animation-delay: 0.5s; }

/* ==========================================================================
   Responsive — 640px+
   ========================================================================== */
@media (min-width: 640px) {
  .hero__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .stats-bar {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ==========================================================================
   Responsive — 768px+
   ========================================================================== */
@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }

  .nav__menu {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: 0.25rem;
    background: transparent;
    border: none;
    transform: none;
  }

  .nav__link {
    padding: 0.5rem 0.875rem;
    font-size: 0.9375rem;
  }

  .nav__cta {
    margin-top: 0;
    margin-left: 0.5rem;
    width: auto;
  }

  .features {
    grid-template-columns: repeat(3, 1fr);
  }

  .service-cards {
    grid-template-columns: repeat(3, 1fr);
    align-items: stretch;
  }

  .service-card--featured {
    transform: scale(1.02);
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonial-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact__box {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 3rem;
  }

  .contact__cta {
    text-align: right;
    flex-shrink: 0;
  }

  .footer__inner {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    text-align: left;
  }

  .footer__copy {
    width: 100%;
    text-align: center;
    margin-top: 1rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
  }
}

/* ==========================================================================
   Responsive — 1024px+
   ========================================================================== */
@media (min-width: 1024px) {
  .section {
    padding: 6rem 0;
  }

  .steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .step {
    flex-direction: column;
    text-align: center;
  }

  .step__number {
    font-size: 2.5rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}