/* ==========================================================================
   digitalraum TCC — Design System & Styles
   ========================================================================== */

/* --- Design Tokens --- */
:root {
  /* Colors */
  --color-bg:           #0A0A0F;
  --color-bg-elevated:  #12121A;
  --color-bg-subtle:    #1A1A25;
  --color-surface:      rgba(255, 255, 255, 0.04);

  --color-text:         #EDEDEF;
  --color-text-muted:   #8A8F98;
  --color-text-dim:     #5A5F68;

  --color-accent:       #FF4D2A;
  --color-accent-hover: #FF6B4A;
  --color-accent-glow:  rgba(255, 77, 42, 0.15);

  --color-border:       rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Outfit', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1rem;
  --text-lg:    1.125rem;
  --text-xl:    1.25rem;
  --text-2xl:   1.5rem;
  --text-3xl:   2rem;
  --text-4xl:   2.5rem;
  --text-5xl:   3.5rem;
  --text-hero:  clamp(3rem, 8vw, 7rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius & Shadows */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;

  --shadow-glow: 0 0 40px var(--color-accent-glow);
  --shadow-card: 0 1px 2px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.2);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top 0.2s;
}

.skip-link:focus {
  top: var(--space-4);
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }
}

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

/* --- Accent --- */
.accent {
  color: var(--color-accent);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  white-space: nowrap;
  min-height: 44px;
  min-width: 44px;
}

.btn--accent {
  background: var(--color-accent);
  color: #fff;
}

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

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-hover);
}

.btn--ghost:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
}

.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

.btn--glow {
  box-shadow: var(--shadow-glow);
}

.btn--glow:hover {
  box-shadow: 0 0 60px var(--color-accent-glow), 0 0 120px rgba(255, 77, 42, 0.08);
}

/* --- Section --- */
.section {
  padding: var(--space-24) 0;
}

.section__header {
  margin-bottom: var(--space-16);
}

.section__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .section__title {
    font-size: var(--text-4xl);
  }
}

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

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-4) 0;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav--scrolled {
  background-color: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav__links {
  display: none;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .nav__links {
    display: flex;
  }
}

.nav__link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  padding: var(--space-2) 0;
}

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

.nav__cta {
  display: none;
}

@media (min-width: 1024px) {
  .nav__cta {
    display: inline-flex;
  }
}

/* Hamburger */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s ease;
  border-radius: 1px;
}

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

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

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

@media (min-width: 1024px) {
  .nav__hamburger {
    display: none;
  }
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  transition: color 0.2s ease;
}

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

.mobile-menu__cta {
  margin-top: var(--space-4);
}

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

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero__shader {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 10, 15, 0.3) 0%, rgba(10, 10, 15, 0.6) 60%, var(--color-bg) 100%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
  flex: 1;
  padding: var(--space-8) 0;
}

@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    max-width: 800px;
  }
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-8);
  max-width: 480px;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}


/* Marquee */
.marquee {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.marquee__track {
  display: flex;
  gap: var(--space-6);
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-dim);
  width: max-content;
}

.marquee__track span {
  flex-shrink: 0;
}

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

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  position: relative;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  overflow: hidden;
}

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

.service-card__number {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-text-dim);
  opacity: 0.3;
  line-height: 1;
}

.service-card__icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

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

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.service-card__link {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  transition: gap 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.service-card__link:hover {
  gap: var(--space-2);
}

/* ==========================================================================
   Projects
   ========================================================================== */

.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .projects__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.project-card--wide {
  grid-column: span 1;
}

@media (min-width: 768px) {
  .project-card--wide {
    grid-column: span 2;
  }
}

.project-card__bg {
  position: absolute;
  inset: 0;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-card__bg {
  transform: scale(1.05);
}

.project-card__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.project-card:hover .project-card__content {
  opacity: 1;
  transform: translateY(0);
}

.project-card__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.project-card__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.project-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

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

.about__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
}

@media (min-width: 1024px) {
  .about__inner {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }
}

.about__text {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.about__text:last-of-type {
  margin-bottom: 0;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  text-align: center;
}

@media (min-width: 1024px) {
  .about__stats {
    border-left: 1px solid var(--color-border);
    padding-left: var(--space-16);
  }
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.stat__number {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1;
  color: var(--color-text);
}

.stat__plus {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Testimonials
   ========================================================================== */

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

.testimonial-carousel {
  position: relative;
  overflow: hidden;
}

.testimonial-carousel__track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial {
  flex: 0 0 100%;
  min-width: 0;
  padding: var(--space-8) var(--space-4);
  text-align: center;
}

@media (min-width: 768px) {
  .testimonial {
    padding: var(--space-12) var(--space-16);
  }
}

.testimonial__quote-mark {
  font-family: var(--font-display);
  font-size: 6rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 0.5;
  margin-bottom: var(--space-6);
  opacity: 0.5;
}

.testimonial__text {
  font-size: var(--text-xl);
  line-height: 1.7;
  color: var(--color-text);
  max-width: 700px;
  margin: 0 auto var(--space-8);
  font-style: italic;
}

@media (min-width: 768px) {
  .testimonial__text {
    font-size: var(--text-2xl);
  }
}

.testimonial__author {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.testimonial__name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  font-style: normal;
}

.testimonial__company {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

/* Carousel Controls */
.testimonial-carousel__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.testimonial-carousel__btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  transition: all 0.2s ease;
}

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

.testimonial-carousel__btn svg {
  width: 20px;
  height: 20px;
}

.testimonial-carousel__dots {
  display: flex;
  gap: var(--space-2);
}

.testimonial-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-text-dim);
  transition: all 0.2s ease;
  padding: 0;
}

.testimonial-carousel__dot.active {
  background: var(--color-accent);
  width: 24px;
  border-radius: 4px;
}

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

.contact {
  text-align: center;
  padding: var(--space-32) 0;
}

.contact__inner {
  position: relative;
}

.contact__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.contact__content {
  position: relative;
  z-index: 2;
}

.contact__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 600px;
  margin: 0 auto var(--space-6);
}

@media (min-width: 768px) {
  .contact__title {
    font-size: var(--text-4xl);
  }
}

.contact__sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.contact__email {
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-text-dim);
}

.contact__email a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

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

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

.footer {
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-16);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 300px;
  line-height: 1.6;
}

.footer__heading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__contact a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.footer__social {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.footer__social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  transition: all 0.2s ease;
}

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

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
}

.footer__bottom p {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  text-align: center;
}