/* ==========================================================================
   TZ Digital — Design System
   ========================================================================== */

@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/inter-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/inter-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/inter-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/inter-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../assets/fonts/jetbrains-mono-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('../assets/fonts/fraunces-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Accent ramp — electric indigo/violet */
  --accent-50: #f3f2ff;
  --accent-100: #e8e6ff;
  --accent-200: #d4d0ff;
  --accent-300: #b5adff;
  --accent-400: #9488ff;
  --accent-500: #7b61ff;
  --accent-600: #6c5ce7;
  --accent-700: #5a4acb;
  --accent-800: #4839a8;
  --accent-900: #3d3189;

  /* Neutral ramp — cool near-black */
  --neutral-50: #f8f9fc;
  --neutral-100: #eef0f6;
  --neutral-200: #d8dce8;
  --neutral-300: #b4bac9;
  --neutral-400: #8a92a6;
  --neutral-500: #6b7386;
  --neutral-600: #555c6d;
  --neutral-700: #444a58;
  --neutral-800: #2a2e38;
  --neutral-900: #15171e;
  --neutral-950: #0a0b0f;

  /* Status colors */
  --success-500: #22c55e;
  --warning-500: #f59e0b;
  --danger-500: #ef4444;
  --info-500: #3b82f6;

  /* Semantic aliases */
  --text-primary: var(--neutral-50);
  --text-secondary: var(--neutral-400);
  --border-subtle: var(--neutral-800);
  --bg-elevated: var(--neutral-900);
  --bg-base: var(--neutral-950);
  --accent: var(--accent-500);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Fraunces', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-pad-y: clamp(5rem, 10vw, 8rem);
  --section-pad-x: clamp(1.25rem, 4vw, 3rem);
  --container-max: 1200px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.35);

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: auto;
}

html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

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

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

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

ul {
  list-style: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "[ ";
}

.eyebrow::after {
  content: " ]";
}

.stat-callout {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 0.04em;
  color: var(--accent);
  line-height: 1.1;
}

.section-headline {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-support {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-secondary);
  max-width: 52ch;
  margin-top: 1rem;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
}

.section-header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header .eyebrow {
  margin-bottom: 0.75rem;
}

/* Section themes */
.section--dark {
  background-color: var(--bg-base);
  color: var(--text-primary);
}

.section--light {
  background-color: var(--neutral-100);
  color: var(--neutral-900);
}

.section--light .section-support {
  color: var(--neutral-600);
}

.section--light .eyebrow {
  color: var(--accent-600);
}

.page-section {
  padding-block: var(--section-pad-y);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: background-color 0.25s var(--ease-out), transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}

.btn--accent {
  background-color: var(--accent-500);
  color: var(--neutral-50);
}

.btn--accent:hover {
  background-color: var(--accent-600);
}

.btn--outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn--outline:hover {
  border-color: var(--accent-500);
  color: var(--accent-400);
}

.btn--light {
  background-color: var(--neutral-50);
  color: var(--accent-700);
}

.btn--light:hover {
  background-color: var(--neutral-100);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem var(--section-pad-x);
  transition: background-color 0.3s var(--ease-out), backdrop-filter 0.3s var(--ease-out);
}

.nav--scrolled {
  background-color: rgba(10, 11, 15, 0.85);
  backdrop-filter: blur(12px);
}

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

.nav__logo {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--accent-400);
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.lang-toggle__btn {
  background: none;
  border: none;
  padding: 0.25rem 0.375rem;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s;
}

.lang-toggle__btn:hover {
  color: var(--accent-400);
}

.lang-toggle__btn.is-active {
  color: var(--accent-500);
}

@media (max-width: 640px) {
  .nav__links {
    display: none;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero-pin {
  position: relative;
  height: calc(var(--vh, 1vh) * 250);
}

.hero {
  position: relative;
  height: calc(var(--vh, 1vh) * 100);
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--bg-base);
}

.hero__canvas-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
}

#hero-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
  pointer-events: none;
}

.hero__content > * {
  pointer-events: auto;
}

.hero__headline {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 14ch;
}

.hero__headline .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(1.25rem);
}

.hero__headline.is-animated .word {
  animation: heroWordIn 0.6s var(--ease-out) forwards;
}

.hero__headline .word--accent {
  color: var(--accent-500);
}

.hero__cta,
.hero__trust {
  opacity: 0;
  transform: translateY(1rem);
}

.hero__cta.is-visible,
.hero__trust.is-visible {
  animation: heroFadeUp 0.6s var(--ease-out) forwards;
}

.hero__cta {
  margin-top: 2rem;
}

.hero__trust {
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

@keyframes heroWordIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Reduced motion: end state */
@media (prefers-reduced-motion: reduce) {
  .hero__headline .word {
    opacity: 1;
    transform: none;
  }

  .hero__cta,
  .hero__trust {
    opacity: 1;
    transform: none;
  }

  .hero-pin {
    height: auto;
  }

  .hero {
    min-height: 100vh;
  }
}

/* ==========================================================================
   Portfolio — Horizontal Scroll
   ========================================================================== */

.portfolio-pin {
  position: relative;
  height: calc(var(--vh, 1vh) * 300);
}

.portfolio {
  position: relative;
  height: calc(var(--vh, 1vh) * 100);
  overflow: hidden;
  background-color: var(--neutral-100);
  color: var(--neutral-900);
}

.portfolio__header {
  position: absolute;
  top: var(--section-pad-y);
  left: 0;
  right: 0;
  z-index: 3;
  padding-inline: var(--section-pad-x);
}

.portfolio__header .eyebrow {
  color: var(--accent-600);
}

.portfolio__header .section-headline {
  color: var(--neutral-900);
}

.portfolio__header .section-support {
  color: var(--neutral-600);
}

.portfolio__track-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding-top: clamp(13rem, 30vh, 18rem);
}

.portfolio__track {
  display: flex;
  width: 300vw;
  height: 60vh;
  will-change: transform;
}

.portfolio__panel {
  flex: 0 0 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline: var(--section-pad-x);
}

.browser-mockup {
  width: min(80vw, 720px);
  background-color: var(--neutral-50);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--neutral-200);
}

.browser-mockup__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.75rem 1rem;
  background-color: var(--neutral-200);
  border-bottom: 1px solid var(--neutral-300);
}

.browser-mockup__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--neutral-400);
}

.browser-mockup__dot:nth-child(1) { background-color: #ff5f57; }
.browser-mockup__dot:nth-child(2) { background-color: #febc2e; }
.browser-mockup__dot:nth-child(3) { background-color: #28c840; }

.browser-mockup__content {
  min-height: 320px;
  padding: 0;
  color: var(--neutral-500);
  font-size: 1.125rem;
  font-weight: 500;
}

.browser-mockup__shot {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

.browser-mockup__fallback {
  display: none; /* shown via onerror swap above */
  width: 100%;
  min-height: 320px;
  align-items: center;
  justify-content: center;
  color: var(--neutral-500);
  font-size: 1.125rem;
  font-weight: 500;
}

.browser-mockup__caption {
  padding: 1rem 1.5rem;
  background-color: var(--neutral-50);
  border-top: 1px solid var(--neutral-200);
}

.browser-mockup__name {
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: 2px;
}

.browser-mockup__desc {
  font-size: 0.875rem;
  color: var(--neutral-600);
}

.browser-mockup__visit {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-600);
  text-decoration: none;
}

.browser-mockup__visit:hover {
  text-decoration: underline;
}

.portfolio__panel-showcase {
  display: block;
}

.portfolio__dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.625rem;
  z-index: 3;
}

.portfolio__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--neutral-300);
  transition: background-color 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}

.portfolio__dot.is-active {
  background-color: var(--accent-600);
  transform: scale(1.35);
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-pin {
    height: auto;
  }

  .portfolio {
    height: auto;
    min-height: 100vh;
    padding-block: var(--section-pad-y);
  }

  .portfolio__header {
    position: relative;
    top: auto;
    margin-bottom: 2rem;
  }

  .portfolio__track-wrap {
    position: relative;
    padding-top: 0;
    flex-direction: column;
    gap: 2rem;
  }

  .portfolio__track {
    width: 100%;
    height: auto;
    flex-direction: column;
    transform: none !important;
  }

  .portfolio__panel {
    flex: none;
    width: 100%;
  }

  .portfolio__dots {
    display: none;
  }
}

/* ==========================================================================
   Services
   ========================================================================== */

.services {
  padding-block: var(--section-pad-y);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.section--light .service-card {
  background-color: var(--neutral-50);
  border-color: var(--neutral-200);
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.service-card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 1.25rem;
  color: var(--accent-500);
}

.service-card__name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.service-card__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.section--light .service-card__desc {
  color: var(--neutral-600);
}

.service-card__features {
  list-style: disc;
  margin-top: 1rem;
  padding-left: 1.25rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--neutral-600);
}

.service-card__features li + li {
  margin-top: 0.375rem;
}

/* ==========================================================================
   Pricing
   ========================================================================== */

.pricing {
  padding-block: var(--section-pad-y);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.pricing__grid .pricing-card:nth-child(4) {
  grid-column: 2;
}

@media (max-width: 860px) {
  .pricing__grid {
    grid-template-columns: 1fr;
  }

  .pricing__grid .pricing-card:nth-child(4) {
    grid-column: auto;
  }
}

.pricing-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.pricing-card__tier {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.pricing-card__name {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  min-height: 2.6em;
  margin-bottom: 1.5rem;
}

.pricing-card__price {
  margin-bottom: 0.5rem;
}

.pricing-card__note {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.pricing-card .service-card__features {
  text-align: left;
  width: 100%;
  margin: -0.5rem 0 1.5rem;
  color: var(--text-secondary);
}

.pricing-card .btn {
  margin-top: auto;
}

/* ==========================================================================
   About
   ========================================================================== */

.about {
  padding-block: var(--section-pad-y);
}

.about__content {
  max-width: 60ch;
}

.about__content p {
  color: var(--neutral-600);
  margin-top: 1rem;
  line-height: 1.7;
}

.about__content p + p {
  margin-top: 1.25rem;
}

.about__team {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.team-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.team-card:hover {
  transform: translateY(-2px);
}

.team-card__photo {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-500);
  margin-bottom: 12px;
}

.team-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.team-card__fallback {
  display: none; /* shown via onerror swap above */
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  background: var(--accent-100);
  color: var(--accent-700);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 32px;
}

.team-card__name {
  font-weight: 600;
  color: var(--neutral-900);
  margin: 0 0 2px;
}

.team-card__role {
  font-size: 13px;
  color: var(--neutral-600);
  margin: 0;
}

@media (max-width: 640px) {
  .about__team {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
}

.legal-page {
  padding-block: var(--section-pad-y);
}

.legal-content {
  max-width: 70ch;
}

.legal-content h1 {
  margin-bottom: 1.5rem;
}

.legal-content h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.legal-content p {
  color: var(--neutral-600);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.legal-content a {
  text-decoration: underline;
}

/* ==========================================================================
   CTA Band
   ========================================================================== */

.cta-band {
  padding-block: var(--section-pad-y);
  background: linear-gradient(180deg, var(--accent-400) 0%, var(--accent-800) 100%);
  text-align: center;
}

.cta-band__inner {
  max-width: 44rem;
  margin-inline: auto;
}

.cta-band__headline {
  color: var(--neutral-50);
}

.cta-band .eyebrow {
  color: var(--neutral-50);
  opacity: 0.85;
}

.cta-band__support {
  margin-top: 1rem;
  font-size: 1.0625rem;
  color: var(--neutral-50);
  opacity: 0.85;
}

.cta-band .btn {
  margin-top: 2rem;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
  padding-block: var(--section-pad-y);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact__info {
  color: var(--text-secondary);
  line-height: 1.7;
}

.contact__info p {
  margin-top: 1rem;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-500);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-status {
  font-size: 0.875rem;
  min-height: 1.25rem;
}

.form-status--success {
  color: var(--success-500);
}

.form-status--error {
  color: var(--danger-500);
}

@media (max-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding: 3rem var(--section-pad-x);
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-base);
}

.footer__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer__logo {
  font-weight: 700;
  font-size: 1rem;
}

.footer__nav {
  display: flex;
  gap: 1.5rem;
}

.footer__nav a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer__nav a:hover {
  color: var(--accent-400);
}

.footer__copy {
  width: 100%;
  font-size: 0.8125rem;
  color: var(--neutral-600);
  margin-top: 0.5rem;
}

/* ==========================================================================
   Fade-in on view (IntersectionObserver)
   ========================================================================== */

.fade-in-view {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.fade-in-view.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in-view {
    opacity: 1;
    transform: none;
    transition: none;
  }
}