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

:root {
  --clr-bg:       #0a0a0f;
  --clr-surface:  #111118;
  --clr-border:   #1e1e2e;
  --clr-accent:   #6c63ff;
  --clr-accent2:  #a78bfa;
  --clr-text:     #e2e8f0;
  --clr-muted:    #7c8898;
  --clr-white:    #ffffff;
  --radius:       12px;
  --radius-lg:    20px;
  --font:         'Inter', system-ui, sans-serif;
  --transition:   0.3s ease;
  --max-w:        1100px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ===== UTILITIES ===== */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 100px 0; }

.section__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent2);
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-white);
  margin-bottom: 16px;
}

.section__sub {
  font-size: 17px;
  color: var(--clr-muted);
  max-width: 560px;
  margin-bottom: 56px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-white);
  box-shadow: 0 0 0 0 rgba(108,99,255,0);
}

.btn--primary:hover {
  background: var(--clr-accent2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108,99,255,0.35);
}

.btn--lg { padding: 18px 36px; font-size: 16px; }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* ===== LOGO ===== */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo__mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--clr-accent);
  color: var(--clr-white);
  font-weight: 700;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo__text {
  font-size: 16px;
  font-weight: 700;
  color: var(--clr-white);
  letter-spacing: -0.01em;
}

.logo--sm .logo__mark { width: 28px; height: 28px; font-size: 14px; }
.logo--sm .logo__text { font-size: 14px; }

/* ===== NAV ===== */
.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--clr-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}

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

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 64px;
}

.hero__inner {
  position: relative;
  z-index: 2;
  padding-top: 80px;
  padding-bottom: 80px;
}

.hero__eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent2);
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(16px);
  animation: fadeUp 0.7s 0.1s forwards;
}

.hero__title {
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.08;
  color: var(--clr-white);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s 0.25s forwards;
}

.hero__sub {
  font-size: 18px;
  color: var(--clr-muted);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.7;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s 0.4s forwards;
}

.hero .btn {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.7s 0.55s forwards;
}

/* Hero grid background */
.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,99,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,99,255,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 0;
}

.hero__grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 60%, transparent 40%, var(--clr-bg) 100%);
}

/* Hero glow */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(108,99,255,0.15) 0%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}

/* ===== ABOUT ===== */
.about { background: var(--clr-surface); border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); }

.about__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 64px;
}

.about__cols p {
  color: var(--clr-muted);
  font-size: 16px;
  line-height: 1.8;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stat {
  background: var(--clr-bg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat:not(:last-child) { border-right: 1px solid var(--clr-border); }

.stat__num {
  font-size: 48px;
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1;
  letter-spacing: -0.04em;
}

.stat__suffix {
  font-size: 32px;
  font-weight: 800;
  color: var(--clr-accent2);
  margin-left: 2px;
}

.stat__label {
  font-size: 13px;
  color: var(--clr-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ===== PORTFOLIO ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  opacity: 0;
  transform: translateY(24px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(108,99,255,0.12);
}

.card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card__icon {
  font-size: 28px;
  width: 52px;
  height: 52px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card__badge {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent2);
  background: rgba(108,99,255,0.12);
  border: 1px solid rgba(108,99,255,0.2);
  padding: 4px 10px;
  border-radius: 100px;
}

.card__name {
  font-size: 22px;
  font-weight: 700;
  color: var(--clr-white);
  letter-spacing: -0.02em;
}

.card__desc {
  font-size: 15px;
  color: var(--clr-muted);
  line-height: 1.7;
  flex: 1;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--clr-accent2);
  text-decoration: none;
  margin-top: auto;
  transition: gap var(--transition), color var(--transition);
}

.card__link:hover {
  color: var(--clr-white);
  gap: 10px;
}

/* ===== CONTACT ===== */
.contact {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  text-align: center;
}

.contact__inner { display: flex; flex-direction: column; align-items: center; }
.contact .section__sub { text-align: center; margin-left: auto; margin-right: auto; }

/* ===== FOOTER ===== */
.footer {
  background: var(--clr-bg);
  border-top: 1px solid var(--clr-border);
  padding: 40px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer__copy {
  font-size: 13px;
  color: var(--clr-muted);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: 13px;
  color: var(--clr-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__links a:hover { color: var(--clr-accent2); }

/* ===== FAQ ===== */
.faq { background: var(--clr-bg); border-top: 1px solid var(--clr-border); }

.faq__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 760px;
}

.faq__item {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq__item[open] { border-color: var(--clr-accent); }

.faq__q {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--clr-white);
  cursor: pointer;
  user-select: none;
}

.faq__q::-webkit-details-marker { display: none; }

.faq__q::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--clr-accent2);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq__item[open] .faq__q::after {
  transform: rotate(45deg);
}

.faq__a {
  padding: 0 28px 22px;
  font-size: 15px;
  color: var(--clr-muted);
  line-height: 1.75;
  border-top: 1px solid var(--clr-border);
  padding-top: 18px;
}

/* ===== MODAL ===== */
.modal {
  position: fixed; inset: 0;
  z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal.is-open { opacity: 1; pointer-events: all; }

.modal__backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal__box {
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%; max-width: 480px;
  transform: translateY(20px);
  transition: transform 0.25s ease;
}

.modal.is-open .modal__box { transform: translateY(0); }

.modal__close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none;
  color: var(--clr-muted); font-size: 24px;
  cursor: pointer; line-height: 1; padding: 4px;
  transition: color var(--transition);
}

.modal__close:hover { color: var(--clr-white); }

.modal__title {
  font-size: 20px; font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 28px;
}

.form__field {
  display: flex; flex-direction: column;
  gap: 6px; margin-bottom: 16px;
}

.form__field label {
  font-size: 13px; font-weight: 600;
  color: var(--clr-text); letter-spacing: 0.02em;
}

.form__field input,
.form__field textarea {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--clr-white);
  font-family: var(--font); font-size: 15px;
  transition: border-color var(--transition);
  resize: vertical;
}

.form__field input:focus,
.form__field textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
}

.form__field input::placeholder,
.form__field textarea::placeholder { color: var(--clr-muted); }

.btn--full { width: 100%; justify-content: center; margin-top: 8px; }

.form__success {
  text-align: center; padding: 32px 0;
  color: var(--clr-accent2); font-size: 16px; font-weight: 600;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav { display: none; }
  .about__cols { grid-template-columns: 1fr; gap: 24px; }
  .stats { grid-template-columns: 1fr; }
  .stat:not(:last-child) { border-right: none; border-bottom: 1px solid var(--clr-border); }
  .cards { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .footer__links { flex-wrap: wrap; gap: 16px; }
}

@media (max-width: 480px) {
  .section { padding: 64px 0; }
  .btn--lg { padding: 14px 24px; font-size: 15px; }
}