/* ============================================
   SHARK — Professional Landing Page
   Color palette: Black, Blue, White
   ============================================ */

:root {
  --black: #0a0a0f;
  --black-soft: #12121a;
  --blue-dark: #0d1b2a;
  --blue-mid: #1b2838;
  --blue-accent: #1c6dda;
  --blue-glow: rgba(28, 109, 218, 0.5);
  --white: #f0f4f8;
  --white-muted: rgba(240, 244, 248, 0.85);
  --glass-bg: rgba(13, 27, 42, 0.45);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.12);
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ========== Background Video ========== */
.video-backdrop {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
}

.bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* YouTube iframe: cover full screen (16:9 scaled to cover) */
.bg-video--youtube {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 100vh;
  min-width: 177.78vh; /* 16:9 */
  min-height: 56.25vw;
  transform: translate(-50%, -50%);
  border: none;
  pointer-events: none;
}

.video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 15, 0.85) 0%,
    rgba(13, 27, 42, 0.9) 40%,
    rgba(10, 10, 15, 0.92) 100%
  );
  z-index: -1;
}

/* ========== Header / Logo ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  animation: fadeInDown 0.8s var(--transition-smooth) forwards;
}

.logo-placeholder {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.2em;
  color: var(--white);
  text-shadow: 0 0 20px var(--blue-glow);
}

.logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  display: block;
}

/* ========== Hero Section ========== */
.hero {
  min-height: 38vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8rem 1.5rem 3rem;
  text-align: center;
  animation: fadeInUp 1s var(--transition-smooth) 0.2s both;
}

.hero-title {
  position: relative;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3rem, 12vw, 6.5rem);
  letter-spacing: 0.15em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 0.75rem;
  perspective: 800px;
}

.hero-title-inner {
  display: inline-block;
  position: relative;
  z-index: 1;
  text-shadow:
    0 0 30px var(--blue-glow),
    0 0 60px rgba(28, 109, 218, 0.3);
  animation: titleFloat 4s ease-in-out infinite;
}

.hero-title-shadow {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) translateZ(-40px) scale(1.02);
  color: transparent;
  -webkit-text-stroke: 2px rgba(28, 109, 218, 0.25);
  text-stroke: 2px rgba(28, 109, 218, 0.25);
  z-index: 0;
  animation: shadowPulse 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes titleFloat {
  0%, 100% { transform: translateY(0) rotateX(0deg); }
  50% { transform: translateY(-6px) rotateX(2deg); }
}

@keyframes shadowPulse {
  0%, 100% { opacity: 0.7; transform: translate(-50%, -50%) translateZ(-40px) scale(1.02); }
  50% { opacity: 1; transform: translate(-50%, -50%) translateZ(-50px) scale(1.03); }
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--white-muted);
  text-transform: uppercase;
  animation: fadeInUp 0.8s var(--transition-smooth) 0.5s both;
}

/* ========== Form Section ========== */
.form-section {
  padding: 0 1.5rem 4rem;
  display: flex;
  justify-content: center;
  animation: fadeInUp 0.9s var(--transition-smooth) 0.4s both;
}

.form-container {
  width: 100%;
  max-width: 560px;
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 var(--glass-highlight);
}

.form-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 1.75rem;
  color: var(--white);
  text-align: center;
}

.shark-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row--cols {
  flex-direction: row;
  flex-wrap: wrap;
}

.form-row--cols .form-group {
  flex: 1 1 0;
  min-width: 0;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--white-muted);
}

.optional {
  font-weight: 400;
  opacity: 0.7;
  font-size: 0.8rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  transition: all var(--transition-smooth);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

/* 3D focus effect */
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue-accent);
  box-shadow:
    0 0 0 3px rgba(28, 109, 218, 0.2),
    0 4px 20px rgba(28, 109, 218, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transform: translateZ(4px);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

/* Done Button */
.btn-done {
  position: relative;
  margin-top: 0.5rem;
  padding: 1rem 2.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--black);
  background: linear-gradient(135deg, var(--blue-accent), #1557b0);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(28, 109, 218, 0.3);
}

.btn-glow {
  position: absolute;
  inset: -2px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-accent), transparent);
  opacity: 0;
  filter: blur(12px);
  transition: opacity var(--transition-smooth);
  z-index: -1;
}

.btn-done:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px var(--blue-glow);
}

.btn-done:hover .btn-glow {
  opacity: 0.6;
}

.btn-done:active {
  transform: translateY(0) scale(0.98);
}

/* ========== Footer ========== */
.footer {
  padding: 2.5rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  background: rgba(10, 10, 15, 0.5);
  animation: fadeIn 0.8s var(--transition-smooth) 0.6s both;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  margin-bottom: 1.25rem;
  color: var(--white-muted);
}

.contact-icons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--white);
  transition: all var(--transition-smooth);
}

.contact-link:hover {
  color: var(--blue-accent);
  border-color: var(--blue-accent);
  box-shadow: 0 0 20px var(--blue-glow);
  transform: translateY(-3px);
}

.contact-link .icon {
  width: 22px;
  height: 22px;
}

/* ========== Animations ========== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== Responsive ========== */
@media (max-width: 640px) {
  .header {
    padding: 1rem 1.25rem;
  }

  .hero {
    min-height: 32vh;
    padding: 6rem 1rem 2rem;
  }

  .hero-title {
    letter-spacing: 0.1em;
  }

  .hero-tagline {
    letter-spacing: 0.15em;
  }

  .form-container {
    padding: 1.75rem 1.25rem;
    border-radius: 16px;
  }

  .form-row--cols {
    flex-direction: column;
  }

  .form-row--cols .form-group {
    flex: 1 1 100%;
  }

  .btn-done {
    padding: 0.95rem 1.75rem;
    letter-spacing: 0.15em;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .hero-title-inner,
  .hero-title-shadow,
  .btn-done:hover {
    animation: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}