/* Tibian Tech — design tokens */
:root {
  --black: #0a0a0a;
  --black-elevated: #111113;
  --charcoal: #17171a;
  --graphite: #1e1e22;
  --slate: #2a2a30;
  --border: #33333a;
  --border-soft: rgba(255, 255, 255, 0.08);
  --grey-600: #6b6b76;
  --grey-500: #8a8a96;
  --grey-400: #a8a8b3;
  --grey-300: #c4c4cc;
  --grey-200: #e0e0e6;
  --white: #f4f4f6;
  --white-pure: #fafafa;

  --font-display: "Sansation", sans-serif;
  --font-body: "Sansation", sans-serif;

  --max: 1120px;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--grey-300);
  background: var(--black);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* —— Atmosphere —— */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(120, 120, 140, 0.14), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 30%, rgba(80, 80, 95, 0.08), transparent 50%),
    radial-gradient(ellipse 40% 35% at 0% 70%, rgba(90, 90, 105, 0.07), transparent 45%),
    var(--black);
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, black 20%, transparent 75%);
}

/* —— Layout —— */
.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.section {
  padding: clamp(4.5rem, 10vw, 7.5rem) 0;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey-600);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--white);
  max-width: 18ch;
  margin-bottom: 1rem;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--grey-500);
  max-width: 38rem;
  margin-bottom: 2.5rem;
}

/* —— Header —— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2;
}

.brand-mark {
  width: 34px;
  height: auto;
  object-fit: contain;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  color: var(--white);
}

.brand-name span {
  font-weight: 400;
  color: var(--grey-500);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  font-size: 0.9375rem;
  color: var(--grey-400);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--white);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  z-index: 2;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--grey-300);
  transition: transform 0.3s var(--ease), opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s, border-color 0.25s, transform 0.25s var(--ease);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--grey-200);
}

.btn-secondary {
  background: transparent;
  color: var(--grey-200);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--grey-500);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--grey-400);
  padding-inline: 0.5rem;
}

.btn-ghost:hover {
  color: var(--white);
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 2.5rem) 0 4rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  right: -8%;
  top: 50%;
  width: min(70vw, 640px);
  height: min(70vw, 640px);
  transform: translateY(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(160, 160, 175, 0.14) 0%, transparent 68%);
  animation: pulse-glow 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  align-items: center;
  gap: 2.5rem 3rem;
}

@media (min-width: 900px) {
  .hero-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem 4rem;
  }
}

.hero-visual {
  display: grid;
  place-items: center;
  order: -1;
  pointer-events: none;
}

@media (min-width: 900px) {
  .hero-visual {
    order: 0;
    justify-self: end;
  }
}

.hero-logo {
  width: min(58vw, 280px);
  height: auto;
  opacity: 0.9;
  filter: drop-shadow(0 28px 70px rgba(0, 0, 0, 0.5));
  animation: logo-in 1.4s var(--ease) both;
}

@media (min-width: 900px) {
  .hero-logo {
    width: min(40vw, 400px);
  }
}

.hero-content {
  max-width: 34rem;
  animation: rise-in 1s var(--ease) 0.25s both;
}

.hero-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.75rem, 7vw, 4.25rem);
  letter-spacing: -0.045em;
  line-height: 0.95;
  color: var(--white);
  margin-bottom: 1.35rem;
}

.hero-brand span {
  display: block;
  font-weight: 400;
  color: var(--grey-400);
  font-size: 0.52em;
  letter-spacing: -0.02em;
  margin-top: 0.15em;
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.4vw, 1.55rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--white-pure);
  margin-bottom: 1rem;
  max-width: 22ch;
}

.hero-support {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--grey-300);
  margin-bottom: 2.15rem;
  max-width: 30rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

@keyframes logo-in {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 0.9;
    transform: scale(1);
  }
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-glow {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

/* —— Reveal on scroll —— */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.is-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;
}

/* —— Problem —— */
.problem {
  border-top: 1px solid var(--border-soft);
}

.problem-grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 800px) {
  .problem-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
  }
}

.problem-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.problem-item {
  padding-left: 1.25rem;
  border-left: 2px solid var(--slate);
  transition: border-color 0.3s;
}

.problem-item:hover {
  border-left-color: var(--grey-400);
}

.problem-item h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.problem-item p {
  font-size: 0.975rem;
  color: var(--grey-500);
}

/* —— Services —— */
.services {
  background: linear-gradient(180deg, transparent, var(--black-elevated) 20%, var(--black-elevated) 80%, transparent);
}

.services-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-soft);
}

.service-row {
  display: grid;
  gap: 0.75rem 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border-soft);
  transition: background 0.3s;
}

@media (min-width: 720px) {
  .service-row {
    grid-template-columns: 2.5rem 1fr 1.4fr auto;
    align-items: baseline;
    padding: 1.85rem 0.5rem;
  }
}

.service-row:hover {
  background: rgba(255, 255, 255, 0.015);
}

.service-num {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--grey-600);
  letter-spacing: 0.04em;
}

.service-row h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.service-row p {
  font-size: 0.975rem;
  color: var(--grey-500);
}

.service-link {
  font-size: 0.875rem;
  color: var(--grey-400);
  white-space: nowrap;
  transition: color 0.2s;
}

.service-row:hover .service-link {
  color: var(--white);
}

/* —— Why —— */
.why-grid {
  display: grid;
  gap: 1px;
  background: var(--border-soft);
  margin-top: 0.5rem;
}

@media (min-width: 720px) {
  .why-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.why-item {
  background: var(--black);
  padding: 2rem 1.75rem;
}

.why-item h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.65rem;
  letter-spacing: -0.015em;
}

.why-item p {
  font-size: 0.975rem;
  color: var(--grey-500);
}

/* —— Process —— */
.process {
  border-top: 1px solid var(--border-soft);
}

.process-steps {
  display: grid;
  gap: 2.5rem;
  counter-reset: step;
}

@media (min-width: 800px) {
  .process-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.process-step {
  position: relative;
  padding-top: 0.25rem;
}

.process-step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--grey-600);
  display: block;
  margin-bottom: 1rem;
}

.process-step h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
}

.process-step p {
  color: var(--grey-500);
  font-size: 0.975rem;
}

/* —— CTA band —— */
.cta-band {
  position: relative;
  padding: clamp(5rem, 12vw, 8rem) 0;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(140, 140, 160, 0.12), transparent 60%),
    linear-gradient(180deg, transparent, var(--graphite));
  border-top: 1px solid var(--border-soft);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
}

.cta-inner .section-title {
  max-width: none;
  margin-inline: auto;
}

.cta-inner .section-lead {
  margin-inline: auto;
  margin-bottom: 2rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
}

/* —— Footer —— */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 3rem 0 2.5rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 0.85rem;
  font-size: 0.9375rem;
  color: var(--grey-600);
  max-width: 22rem;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-600);
  margin-bottom: 1rem;
}

.footer-col a {
  display: block;
  font-size: 0.9375rem;
  color: var(--grey-400);
  margin-bottom: 0.55rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.8125rem;
  color: var(--grey-600);
}

/* —— Contact (simple) —— */
.contact-panel {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 800px) {
  .contact-panel {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.field label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--grey-400);
  margin-bottom: 0.45rem;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--white);
  background: var(--charcoal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  transition: border-color 0.2s;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--grey-500);
}

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

.form-note {
  font-size: 0.8125rem;
  color: var(--grey-600);
  margin-top: 0.25rem;
}

/* —— Mobile nav —— */
@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, 0.97);
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .nav-links a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
  }

  .hero {
    align-items: stretch;
    padding-top: calc(var(--header-h) + 1.5rem);
  }

  .hero-layout {
    gap: 1.75rem;
  }

  .hero-logo {
    width: min(46vw, 200px);
    opacity: 0.85;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-support {
    font-size: 1.05rem;
    color: var(--grey-200);
  }
}