/* ===== FONTS ===== */
@font-face {
  font-family: 'LINE Seed Sans';
  src: url('assets/fonts/LINESeedSans_W_Th.woff') format('woff');
  font-weight: 100;
  font-style: normal;
}
@font-face {
  font-family: 'LINE Seed Sans';
  src: url('assets/fonts/LINESeedSans_W_Rg.woff') format('woff');
  font-weight: 400;
  font-style: normal;
}
@font-face {
  font-family: 'LINE Seed Sans';
  src: url('assets/fonts/LINESeedSans_W_Bd.woff') format('woff');
  font-weight: 700;
  font-style: normal;
}
@font-face {
  font-family: 'LINE Seed Sans';
  src: url('assets/fonts/LINESeedSans_W_XBd.woff') format('woff');
  font-weight: 800;
  font-style: normal;
}
@font-face {
  font-family: 'LINE Seed Sans';
  src: url('assets/fonts/LINESeedSans_W_He.woff') format('woff');
  font-weight: 900;
  font-style: normal;
}

/* ===== DESIGN TOKENS ===== */
:root {
  --color-primary: #0F172A;
  --color-secondary: #334155;
  --color-accent: #0369A1;
  --color-accent-light: #E0F2FE;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-bg-dark: #0F172A;
  --color-border: #E2E8F0;
  --color-text: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 50px -5px rgba(0,0,0,0.1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'LINE Seed Sans', -apple-system, sans-serif;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-text); text-decoration: none; }
img { max-width: 100%; height: auto; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { line-height: 1.15; letter-spacing: -0.02em; }
h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 16px;
}
h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; }
h4 { font-size: 1rem; font-weight: 700; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
  line-height: 1.75;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: #025E8F;
  border-color: #025E8F;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-dark {
  background: var(--color-primary);
  color: #fff;
}
.btn-dark:hover {
  background: #1E293B;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-white {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}
.btn-white:hover {
  background: #F1F5F9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}

/* ===== HEADER ===== */
.site-header {
  padding: 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: 72px;
}
.site-logo img {
  height: 42px;
  width: auto;
}
.main-nav {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}
.main-nav a {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-secondary);
  transition: color var(--transition);
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover { color: var(--color-primary); }
.main-nav a:hover::after { width: 100%; }

.header-cta {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('assets/images/hero-stauff.jpg') center/cover no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.85) 0%,
    rgba(15, 23, 42, 0.6) 50%,
    rgba(15, 23, 42, 0.75) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: 40px 24px;
  max-width: 860px;
}
.hero-content .section-label {
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.1);
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 24px;
}
.hero-content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  line-height: 1.08;
}
.hero-content p {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin-bottom: 40px;
  opacity: 0.85;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== TRUSTED BY / LOGO CAROUSEL ===== */
.trusted {
  padding: 64px 0;
  border-bottom: 1px solid var(--color-border);
}
.trusted .section-label { text-align: center; display: block; }
.trusted h2 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: 32px;
  letter-spacing: 0;
}

.logo-carousel {
  overflow: hidden;
  padding: 8px 0;
  position: relative;
  width: 100%;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.logo-track {
  display: flex;
  align-items: center;
  gap: 72px;
  animation: scroll-logos 35s linear infinite;
  width: max-content;
}
.logo-track:hover { animation-play-state: paused; }
.logo-track img {
  height: 72px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.35;
  transition: all 0.4s ease;
  mix-blend-mode: multiply;
}
.logo-track img:hover {
  filter: grayscale(0%);
  opacity: 0.85;
}
@keyframes scroll-logos {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== SECTORS ===== */
.sectors {
  padding: 100px 0;
}
.sectors .section-label,
.sectors h2 { text-align: center; display: block; }

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.card-img {
  height: 240px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(15,23,42,0.04) 100%);
}
.card-body {
  padding: 28px 28px 32px;
}
.card-body h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--color-primary);
}
.card-body p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 16px;
  line-height: 1.7;
}
.card-link {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.card-link:hover { gap: 10px; color: var(--color-accent); }
.card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}
.card-link:hover svg { transform: translateX(2px); }

/* ===== HOW WE WORK ===== */
.how-we-work {
  padding: 100px 0;
  background: var(--color-bg-dark);
  color: #fff;
}
.how-we-work .section-label {
  color: rgba(255,255,255,0.5);
  text-align: center;
  display: block;
}
.how-we-work h2 { color: #fff; text-align: center; }
.how-we-work .section-subtitle { color: rgba(255,255,255,0.55); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.step {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition);
}
.step:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(3, 105, 161, 0.2);
  color: #38BDF8;
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.step h4 {
  color: #fff;
  margin-bottom: 8px;
  font-size: 1rem;
}
.step p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
}

/* ===== SERVICES ===== */
.services {
  padding: 100px 0;
  background: var(--color-bg-alt);
}
.services .section-label,
.services h2 { text-align: center; display: block; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-bg);
  padding: 36px 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}
.service-icon svg {
  width: 24px;
  height: 24px;
}
.service-card h3 {
  color: var(--color-primary);
  margin-bottom: 10px;
  font-size: 1.15rem;
}
.service-card p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  font-size: 0.92rem;
  line-height: 1.7;
}
.service-card .card-link { font-size: 0.85rem; }

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: 100px 0;
}
.testimonials .section-label,
.testimonials h2 { text-align: center; display: block; }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.testimonial-card {
  background: var(--color-bg-alt);
  padding: 40px 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
}
.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.quote-icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  opacity: 0.3;
  margin-bottom: 16px;
}
.testimonial-card p {
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 24px;
  color: var(--color-secondary);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}
.testimonial-info cite {
  font-style: normal;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-primary);
  display: block;
}
.testimonial-info span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== WHO WE WORK WITH ===== */
.who-we-work-with {
  padding: 100px 0;
  background: var(--color-bg-alt);
}
.who-we-work-with .section-label,
.who-we-work-with h2 { text-align: center; display: block; }

.roles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.role-item {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.role-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.role-item h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* ===== AREAS ===== */
.areas {
  padding: 80px 0;
}
.areas .section-label,
.areas h2 { text-align: center; display: block; }

.areas-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.area-tag {
  padding: 10px 24px;
  border-radius: 100px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-secondary);
  transition: all var(--transition);
}
.area-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-light);
}

/* ===== CTA ===== */
.cta {
  padding: 100px 0;
  background: var(--color-bg-dark);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(3,105,161,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.cta h2 {
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}
.cta > .container > p:first-of-type {
  max-width: 600px;
  margin: 0 auto 40px;
  color: rgba(255,255,255,0.6);
  font-size: 1.05rem;
  position: relative;
}
.cta .btn { margin-bottom: 24px; position: relative; }
.cta-contact {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  position: relative;
}
.cta-contact strong { color: rgba(255,255,255,0.8); }

/* ===== FOOTER ===== */
.site-footer {
  padding: 64px 0 32px;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}
.footer-brand img {
  height: 28px;
  width: auto;
}
.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--color-secondary);
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ===== ROLE MODALS ===== */
.role-item {
  cursor: pointer;
}
.role-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 6px;
  font-weight: 400;
}
.role-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.role-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.role-modal {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  max-width: 520px;
  width: 90%;
  position: relative;
  box-shadow: var(--shadow-xl);
  transform: translateY(16px);
  transition: transform 0.25s ease;
}
.role-modal-overlay.active .role-modal {
  transform: translateY(0);
}
.role-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: none;
  background: var(--color-bg-alt);
  border-radius: 50%;
  font-size: 1.2rem;
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.role-modal-close:hover {
  background: var(--color-border);
  color: var(--color-primary);
}
.role-modal h3 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.role-modal p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 24px;
}
.role-modal .btn {
  display: inline-block;
}

/* ===== HERO ANIMATED WORDS ===== */
.hero-word-wrap {
  display: block;
  position: relative;
  overflow: hidden;
  height: 1.15em;
}
.hero-word {
  position: absolute;
  left: 0;
  right: 0;
  text-align: center;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  color: #E5A55A;
}
.hero-word.active {
  opacity: 1;
  transform: translateY(0);
}
.hero-word.exit-up {
  opacity: 0;
  transform: translateY(-100%);
}

/* ===== MOBILE MENU ===== */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 200;
}
.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  margin: 6px 0;
  transition: all 0.3s ease;
  border-radius: 2px;
}
.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}
.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mobile-nav-overlay.active {
  opacity: 1;
}
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100%;
  background: var(--color-bg);
  z-index: 150;
  padding: 88px 24px 32px;
  box-shadow: var(--shadow-xl);
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}
.mobile-nav.active {
  right: 0;
}
.mobile-nav a {
  display: block;
  padding: 14px 0;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-border);
  transition: color var(--transition);
}
.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--color-accent);
  font-weight: 700;
}
.mobile-nav .btn {
  display: block;
  text-align: center;
  margin-top: 24px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .hero-content h1 { font-size: 2.2rem; }
  .hero { min-height: 85vh; }
  .three-col,
  .services-grid,
  .testimonials-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .roles-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav { display: none; }
  .header-cta { display: none; }
  .mobile-menu-toggle { display: block; }
  .mobile-nav { display: block; }
  .mobile-nav-overlay { display: block; }
  .header-inner { justify-content: space-between; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  section { padding: 64px 0; }
  .sectors, .how-we-work, .services,
  .testimonials, .who-we-work-with, .cta { padding: 64px 0; }
}
@media (max-width: 480px) {
  .steps-grid { grid-template-columns: 1fr; }
  .roles-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 1.8rem; }
}