/* ==========================================================================
   Product 360 — Styles
   Dark Velocity Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500&family=Sora:wght@600;700&display=swap');

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors */
  --bg: #0A0A0A;
  --surface: #141414;
  --surface-alt: #1A1A1A;
  --text-primary: #FFFFFF;
  --text-secondary: #A0A0A0;
  --accent: #FF6B35;
  --accent-hover: #FF8555;
  --border: #2A2A2A;

  /* Typography */
  --font-heading: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --radius-card: 8px;
  --radius-btn: 4px;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   Selection
   -------------------------------------------------------------------------- */
::selection {
  background-color: var(--accent);
  color: var(--text-primary);
}

::-moz-selection {
  background-color: var(--accent);
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

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

/* --------------------------------------------------------------------------
   Typography Base
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}

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

/* --------------------------------------------------------------------------
   Section Common
   -------------------------------------------------------------------------- */
.section-label span {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
}

.section-title span {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--text-primary);
  display: block;
  margin-bottom: 48px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn--primary {
  background-color: var(--accent);
  color: var(--text-primary);
  font-size: 1rem;
  padding: 16px 40px;
  border-radius: var(--radius-btn);
}

.btn--primary:hover {
  background-color: var(--accent-hover);
  transform: scale(1.02);
  box-shadow: 0 0 32px rgba(255, 107, 53, 0.3);
}

.btn--primary:active {
  transform: scale(0.98);
}

.btn--large {
  font-size: 1.125rem;
  padding: 20px 48px;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background-color: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.nav__logo {
  text-decoration: none;
  z-index: 1001;
}

.nav__logo-img {
  height: 28px;
  width: auto;
  color: var(--text-primary);
  display: block;
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

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

.nav__links a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.nav__links a:hover::after {
  width: 100%;
}

/* Language Toggle */
.nav__lang {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border);
  transition: border-color 0.2s ease;
}

.nav__lang:hover {
  border-color: var(--text-secondary);
}

.nav__lang-option {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.nav__lang-option[data-active] {
  color: var(--text-primary);
}

.nav__lang-divider {
  font-size: 0.75rem;
  color: var(--border);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 6px;
  z-index: 1001;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(3px, 3px);
}

.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

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

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background-color: var(--bg);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.mobile-menu__links a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 2rem;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.nav__lang--mobile {
  margin-top: 16px;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg);
}

.hero__bg-pattern {
  position: absolute;
  inset: 0;
  background: url('../images/hero.jpg') center center / cover no-repeat;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.7) 0%, rgba(10, 10, 10, 0.55) 40%, rgba(10, 10, 10, 0.5) 70%, rgba(10, 10, 10, 0.75) 100%);
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding-top: 72px;
}

.hero__label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s forwards;
}

.hero__title {
  margin-bottom: 0;
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s forwards;
}

.hero__title span {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2.5rem;
  line-height: 1.1;
  color: var(--text-primary);
  display: block;
}

.hero__subtitle {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.6s forwards;
}

.hero__subtitle span {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 24px;
}

.hero__cta {
  margin-top: 48px;
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.8s forwards;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-secondary);
  z-index: 2;
  animation: bounce 2.5s ease-in-out infinite;
  opacity: 0.5;
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

/* --------------------------------------------------------------------------
   Services
   -------------------------------------------------------------------------- */
.services {
  padding: 64px 0;
  background-color: var(--bg);
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.card {
  background-color: var(--surface);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  border-top: 3px solid var(--accent);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 107, 53, 0.08);
}

.card__icon {
  width: 40px;
  height: 40px;
  color: var(--accent);
  margin-bottom: 24px;
}

.card__icon svg {
  width: 100%;
  height: 100%;
}

.card__title {
  margin-bottom: 16px;
}

.card__title span {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--text-primary);
  display: block;
}

.card__text span {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  display: block;
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */
.about {
  padding: 64px 0;
  background-color: var(--surface-alt);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.about__image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.about__image {
  width: 100%;
  max-width: 320px;
  border-radius: var(--radius-card);
  border: 3px solid var(--accent);
  display: block;
  aspect-ratio: 1;
  object-fit: cover;
  background-color: var(--surface);
}

.about__name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.about__bio {
  margin-bottom: 20px;
}

.about__bio span {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: block;
}

.about__location {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.about__location svg {
  color: var(--accent);
  flex-shrink: 0;
  display: inline-block;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact {
  padding: 64px 0;
  background-color: var(--bg);
  text-align: center;
}

.contact__title span {
  margin-bottom: 48px;
}

.contact__cta {
  margin-bottom: 48px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.contact__details p {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.contact__details svg {
  color: var(--accent);
  flex-shrink: 0;
  display: inline-block;
}

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

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.footer p {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer a {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   Scroll Reveal
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Staggered delay for cards */
.services__grid .card:nth-child(2) {
  transition-delay: 0.1s;
}

.services__grid .card:nth-child(3) {
  transition-delay: 0.2s;
}

.services__grid .card:nth-child(4) {
  transition-delay: 0.05s;
}

.services__grid .card:nth-child(5) {
  transition-delay: 0.15s;
}

.services__grid .card:nth-child(6) {
  transition-delay: 0.25s;
}

.services__grid .card:nth-child(7) {
  transition-delay: 0.05s;
}

.services__grid .card:nth-child(8) {
  transition-delay: 0.15s;
}

.services__grid .card:nth-child(9) {
  transition-delay: 0.25s;
}

/* --------------------------------------------------------------------------
   Imprint Page
   -------------------------------------------------------------------------- */
.imprint {
  padding-top: 120px;
  padding-bottom: 96px;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.imprint h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 2rem;
  color: var(--text-primary);
  margin-bottom: 40px;
}

.imprint h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text-primary);
  margin-top: 32px;
  margin-bottom: 12px;
}

.imprint p {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 8px;
}

.imprint a {
  color: var(--accent);
  transition: color 0.2s ease;
}

.imprint a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Responsive — Tablet (768px+)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }

  .section-title span {
    font-size: 2.25rem;
    margin-bottom: 56px;
  }

  .hero__title span {
    font-size: 3.25rem;
  }

  .hero__subtitle span {
    font-size: 1.125rem;
  }

  .services {
    padding: 80px 0;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .about {
    padding: 80px 0;
  }

  .about__grid {
    grid-template-columns: 1fr 1.5fr;
    gap: 56px;
  }

  .about__name {
    font-size: 2rem;
  }

  .about__bio span {
    font-size: 1.05rem;
  }

  .contact {
    padding: 80px 0;
  }

  .contact__details {
    flex-direction: row;
    justify-content: center;
    gap: 48px;
  }

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Desktop (1024px+)
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
  .container {
    padding-left: 48px;
    padding-right: 48px;
  }

  .section-title span {
    font-size: 2.5rem;
    margin-bottom: 64px;
  }

  .hero__title span {
    font-size: 4rem;
  }

  .hero__subtitle span {
    font-size: 1.25rem;
  }

  .services {
    padding: 96px 0;
  }

  .services__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }

  .card {
    padding: 40px 32px;
  }

  .about {
    padding: 96px 0;
  }

  .about__grid {
    gap: 64px;
  }

  .about__image {
    max-width: 400px;
  }

  .about__name {
    font-size: 2.5rem;
  }

  .about__bio span {
    font-size: 1.1rem;
  }

  .contact {
    padding: 96px 0;
  }
}

/* --------------------------------------------------------------------------
   Responsive — Mobile nav toggle
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .nav__links {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }
}

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

  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }

  .hero__label,
  .hero__title,
  .hero__subtitle,
  .hero__cta {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .hero__scroll-indicator {
    animation: none;
  }

  .card,
  .btn,
  .nav,
  .nav__links a::after,
  .mobile-menu {
    transition: none;
  }
}

/* Focus visible */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Cookie Consent Banner
   -------------------------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 10000;
  font-family: var(--font-body);
}

.cookie-banner.active {
  display: flex;
  flex-wrap: wrap;
}

.cookie-banner p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

.cookie-banner a {
  color: var(--accent);
  text-decoration: underline;
  margin-left: 4px;
}

.cookie-banner__buttons {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.cookie-banner__btn {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.cookie-banner__btn:hover {
  opacity: 0.85;
}

.cookie-banner__btn--accept {
  background: var(--accent);
  color: #fff;
}

.cookie-banner__btn--decline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* --------------------------------------------------------------------------
   Print
   -------------------------------------------------------------------------- */
@media print {
  .nav,
  .hero__scroll-indicator,
  .mobile-menu,
  .hero__bg-pattern,
  .hero__overlay {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .hero {
    min-height: auto;
    padding: 40px 0;
  }

  .card {
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}