/* ═══════════════════════════════════════════
   KINETIC HUE — Minimal & Sharp SaaS
   ═══════════════════════════════════════════ */

:root {
  --color-bg: #fafaf9;
  --color-bg-alt: #f2f2f0;
  --color-bg-card: #ffffff;
  --color-text: #0a0a0a;
  --color-text-muted: #5c5c5c;
  --color-text-subtle: #8a8a8a;
  --color-border: #e5e5e3;
  --color-border-light: #f0f0ee;

  /* Accent: Kinetic blue → teal gradient */
  --color-accent: #0055ff;
  --color-accent-2: #00c9a7;
  --gradient-accent: linear-gradient(135deg, #0055ff 0%, #00c9a7 100%);
  --gradient-accent-subtle: linear-gradient(135deg, rgba(0,85,255,0.08) 0%, rgba(0,201,167,0.08) 100%);

  --font-display: 'Outfit', sans-serif;
  --font-body: 'Figtree', sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --nav-height: 72px;
  --max-width: 1200px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ═══ RESET ═══ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* ═══ UTILITY ═══ */
.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
}

/* ═══════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
.nav--scrolled {
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  box-shadow: 0 1px 0 var(--color-border);
}
.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 0;
}
.logo-k {
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-text { color: var(--color-text); }
.logo-hue {
  color: var(--color-text);
  opacity: 0.4;
  font-weight: 400;
  margin-left: 1px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gradient-accent);
  transition: width var(--transition);
}
.nav__link:hover { color: var(--color-text); }
.nav__link:hover::after { width: 100%; }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-display);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.04em;
}
.lang-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Burger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav__burger span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.active span:nth-child(2) { opacity: 0; }
.nav__burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ═══════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 2rem) clamp(1.5rem, 5vw, 3rem) var(--space-xl);
  overflow: hidden;
}

.hero__grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,0,0,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero__accent-line {
  position: absolute;
  top: 20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,85,255,0.06) 0%, rgba(0,201,167,0.03) 40%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-30px, 20px) scale(1.05); }
  66% { transform: translate(20px, -15px) scale(0.95); }
}

.hero__content {
  position: relative;
  max-width: 780px;
  text-align: center;
  z-index: 1;
}

.hero__badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  animation: fadeUp 0.8s ease both;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
  animation: fadeUp 0.8s 0.1s ease both;
}
.hero__title span {
  display: inline-block;
}
.hero__title--accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto var(--space-lg);
  animation: fadeUp 0.8s 0.2s ease both;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.8s 0.3s ease both;
}

/* ═══ BUTTONS ═══ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-text);
  color: var(--color-bg);
}
.btn--primary:hover {
  background: #222;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.btn--ghost {
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
}
.btn--ghost:hover {
  border-color: var(--color-text);
}
.btn--full { width: 100%; justify-content: center; }

/* ═══════════════════════════════════════════
   SERVICES
   ═══════════════════════════════════════════ */
.services {
  padding: var(--space-2xl) 0;
  background: var(--color-bg);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-xl);
}
.section__label {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}
.section__desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.2rem 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  border-color: transparent;
  box-shadow: 0 8px 40px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  transform: translateY(-2px);
}
.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}
.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.service-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.service-card__tags li {
  padding: 0.3rem 0.75rem;
  background: var(--color-bg-alt);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* ═══════════════════════════════════════════
   PARTNERS
   ═══════════════════════════════════════════ */
.partners {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-alt);
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.partner-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.partner-card:hover {
  border-color: transparent;
  box-shadow: 0 8px 30px rgba(0,0,0,0.05);
  transform: translateY(-2px);
}
.partner-card__logo {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  opacity: 0.7;
  transition: opacity var(--transition);
}
.partner-card:hover .partner-card__logo { opacity: 1; }
.partner-card__logo svg { width: 100%; height: 100%; }
.partner-card__logo img {
  max-height: 40px;
  max-width: 160px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.8;
  transition: filter var(--transition), opacity var(--transition);
}
.partner-card:hover .partner-card__logo img {
  filter: grayscale(0%);
  opacity: 1;
}

.partner-card__badge {
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  padding: 0.25rem 0.6rem;
  background: var(--gradient-accent-subtle);
  border-radius: 100px;
}

/* ═══════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════ */
.contact {
  padding: var(--space-2xl) 0;
  background: var(--color-bg);
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact__info .section__label,
.contact__info .section__title,
.contact__info .section__desc {
  text-align: left;
}
.contact__info .section__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}

.contact__details {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.contact__detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}
.contact__detail svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

/* Form */
.contact__form-wrap {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form__group--full {
  margin-bottom: 1.5rem;
}
.form__label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.form__input {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form__input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.08);
}
.form__input::placeholder { color: var(--color-text-subtle); }
.form__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238a8a8a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.form__textarea { resize: vertical; min-height: 120px; }
.form__status {
  margin-top: var(--space-sm);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;
  min-height: 1.4em;
}
.form__status--success { color: var(--color-accent-2); }
.form__status--error { color: #e53e3e; }

/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer__left { display: flex; align-items: center; gap: var(--space-md); }
.footer__copy {
  font-size: 0.82rem;
  color: var(--color-text-subtle);
}
.footer__links {
  display: flex;
  gap: 1.5rem;
}
.footer__links a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-text); }

/* ═══════════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════════ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 900px) {
  .contact__layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .partners__grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    padding: 2rem;
    gap: 1.5rem;
    transition: right var(--transition);
    z-index: 999;
  }
  .nav__links.open { right: 0; }
  .nav__burger { display: flex; z-index: 1001; }

  .hero__title {
    font-size: clamp(2.4rem, 10vw, 3.5rem);
  }
  .services__grid {
    grid-template-columns: 1fr;
  }
  .form__row {
    grid-template-columns: 1fr;
  }
  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer__left {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + 3rem);
    padding-bottom: 4rem;
  }
  .contact__form-wrap {
    padding: 1.5rem;
  }
  .partners__grid {
    grid-template-columns: 1fr 1fr;
  }
}