/* ============================================
   ZaleonTech — Presentation Website
   ============================================ */

:root {
  --bg-primary: #060d1a;
  --bg-secondary: #0c1829;
  --bg-card: rgba(12, 24, 41, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #00e5c7;
  --accent-secondary: #0ea5e9;
  --accent-glow: rgba(0, 229, 199, 0.25);
  --gradient-accent: linear-gradient(135deg, #00e5c7 0%, #0ea5e9 50%, #6366f1 100%);
  --gradient-dark: linear-gradient(180deg, #060d1a 0%, #0c1829 100%);
  --font-body: 'Inter', system-ui, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-glow: 0 0 60px rgba(0, 229, 199, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.section {
  padding: 100px 0;
  position: relative;
}

.section__tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

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

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section__desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
}

.section__header {
  text-align: center;
  margin-bottom: 64px;
}

.section__header .section__desc {
  margin: 0 auto;
}

/* Cursor glow */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 199, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  opacity: 0;
}

body:hover .cursor-glow {
  opacity: 1;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}

.header--scrolled {
  background: rgba(6, 13, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  z-index: 10;
}

.nav__logo {
  border-radius: var(--radius-sm);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav__link:hover {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav__link--cta {
  background: var(--gradient-accent);
  color: var(--bg-primary) !important;
  font-weight: 600;
  margin-left: 8px;
}

.nav__link--cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 10;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.btn--primary {
  background: var(--gradient-accent);
  color: var(--bg-primary);
}

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

.btn--ghost {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  border-color: rgba(0, 229, 199, 0.3);
  background: rgba(0, 229, 199, 0.08);
}

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

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 13, 26, 0.7) 0%, rgba(6, 13, 26, 0.85) 50%, var(--bg-primary) 100%),
    radial-gradient(ellipse at 30% 50%, rgba(0, 229, 199, 0.08) 0%, transparent 60%);
}

.hero__particles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(0, 229, 199, 0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 20%, rgba(14, 165, 233, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 80%, rgba(99, 102, 241, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 60%, rgba(0, 229, 199, 0.2) 0%, transparent 100%);
  animation: particles 20s linear infinite;
}

@keyframes particles {
  0%, 100% { opacity: 0.6; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-10px); }
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: calc(var(--header-height) + 60px) 24px 80px;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px transparent; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -0.025em;
}

.hero__title-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
}

.hero__stats {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  padding: 24px 40px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
}

.hero__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero__stat-number {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-glass);
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 28px;
  height: 44px;
  border: 2px solid var(--border-glass);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.hero__scroll:hover {
  opacity: 1;
}

.hero__scroll span {
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(8px); opacity: 0.3; }
}

/* About */
.about {
  background: var(--gradient-dark);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__image-stack {
  position: relative;
}

.about__img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.about__img--main {
  width: 85%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.about__img--secondary {
  position: absolute;
  bottom: -30px;
  right: 0;
  width: 55%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border: 4px solid var(--bg-primary);
}

.about__floating-card {
  position: absolute;
  top: 20px;
  right: -20px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: rgba(12, 24, 41, 0.9);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glow);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.about__floating-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-accent);
  border-radius: var(--radius-sm);
  color: var(--bg-primary);
}

.about__floating-card strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.about__floating-card span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.about__text {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.about__text strong {
  color: var(--text-primary);
}

.about__highlights {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.about__highlights li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--text-primary);
}

.about__highlights svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* Services */
.services {
  position: relative;
  overflow: hidden;
}

.services__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 0% 50%, rgba(0, 229, 199, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 100% 50%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  position: relative;
}

.service-card {
  grid-column: span 2;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 199, 0.2);
  box-shadow: var(--shadow-glow);
}

.service-card--wide {
  grid-column: span 3;
}

.service-card--wide .service-card__visual {
  height: 220px;
}

.service-card__visual {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.service-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card__visual img {
  transform: scale(1.08);
}

.service-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(6, 13, 26, 0.8) 100%);
}

.service-card__visual--gradient {
  background: linear-gradient(135deg, #0c4a6e 0%, #164e63 100%);
}

.service-card__visual--gradient-2 {
  background: linear-gradient(135deg, #312e81 0%, #4c1d95 100%);
}

.service-card__visual--gradient-3 {
  background: linear-gradient(135deg, #134e4a 0%, #0f766e 100%);
}

.service-card__visual--gradient-4 {
  background: linear-gradient(135deg, #1e3a5f 0%, #0c4a6e 100%);
}

.service-card__pattern {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image:
    linear-gradient(30deg, #fff 12%, transparent 12.5%, transparent 87%, #fff 87.5%, #fff),
    linear-gradient(150deg, #fff 12%, transparent 12.5%, transparent 87%, #fff 87.5%, #fff);
  background-size: 40px 70px;
}

.service-card__body {
  padding: 28px;
}

.service-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 199, 0.1);
  border: 1px solid rgba(0, 229, 199, 0.2);
  border-radius: var(--radius-md);
  color: var(--accent);
  margin-bottom: 16px;
  transition: background var(--transition), transform var(--transition);
}

.service-card:hover .service-card__icon {
  background: rgba(0, 229, 199, 0.2);
  transform: scale(1.05);
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Differentials */
.differentials {
  background: var(--bg-secondary);
}

.differentials__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.diff-card {
  padding: 36px 28px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  transition: transform var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.diff-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.diff-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 199, 0.15);
}

.diff-card:hover::before {
  transform: scaleX(1);
}

.diff-card__number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.4;
  margin-bottom: 16px;
}

.diff-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.diff-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact */
.contact {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
}

.contact__bg {
  position: absolute;
  inset: 0;
}

.contact__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact__overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 13, 26, 0.92);
}

.contact__card {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
  padding: 64px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(30px);
}

.contact__intro {
  text-align: center;
}

.contact__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.contact__desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin: 0 auto;
  max-width: 560px;
  line-height: 1.7;
}

.form__api-status {
  grid-column: 1 / -1;
  padding: 14px 18px;
  margin-bottom: 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.35);
  color: #fcd34d;
}

/* Contact form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

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

.form__optional {
  color: var(--text-muted);
  font-weight: 400;
}

.form__input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: rgba(6, 13, 26, 0.6);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input::placeholder {
  color: var(--text-muted);
}

.form__input:focus {
  outline: none;
  border-color: rgba(0, 229, 199, 0.4);
  box-shadow: 0 0 0 3px rgba(0, 229, 199, 0.1);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__captcha {
  min-height: 65px;
}

.form__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form__privacy {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.form__feedback {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
}

.form__feedback--success {
  background: rgba(0, 229, 199, 0.12);
  border: 1px solid rgba(0, 229, 199, 0.3);
  color: var(--accent);
}

.form__feedback--error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

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

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__email {
  font-size: 0.9rem;
  color: var(--accent);
  transition: opacity var(--transition);
}

.footer__email:hover {
  opacity: 0.8;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card {
    grid-column: span 1;
  }

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

  .differentials__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__grid {
    gap: 48px;
  }

  .contact__card {
    grid-template-columns: 1fr;
    padding: 48px;
  }

  .contact__intro {
    position: static;
    text-align: center;
  }

  .contact__desc {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    inset: 0;
    background: rgba(6, 13, 26, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
  }

  .nav__menu--open {
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    font-size: 1.25rem;
    padding: 12px 24px;
  }

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

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

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

  .hero__stats {
    flex-direction: column;
    gap: 20px;
    padding: 24px 32px;
  }

  .hero__stat-divider {
    width: 40px;
    height: 1px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about__floating-card {
    right: 0;
    top: auto;
    bottom: 60px;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

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

  .differentials__grid {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .cursor-glow {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .contact__card {
    padding: 32px 24px;
  }

  .form__row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

  html {
    scroll-behavior: auto;
  }
}