/* ==========================================================================
   HTP Enterprise Landing Page Styles
   ========================================================================== */

/* ==========================================================================
           CSS VARIABLES & RESET
           ========================================================================== */
:root {
  /* Brand Colors */
  --cyan: #00d4e8;
  --cyan-glow: rgba(0, 212, 232, 0.3);
  --red: #e8000d;
  --red-glow: rgba(232, 0, 13, 0.3);

  /* Backgrounds & Surfaces */
  --dark: #0a0e1a;
  --mid-dark: #12192b;
  --light-bg: #f7f9fc;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);

  /* Typography */
  --text-light: #ffffff;
  --text-muted: #a0aec0;
  --text-dark: #1a202c;

  /* Fonts */
  --font-head: "Exo 2", sans-serif;
  --font-body: "Inter", sans-serif;

  /* Transitions */
  --trans-fast: 0.2s ease;
  --trans-med: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--dark);
  color: var(--text-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-head);
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--trans-med);
  border: 2px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background-color: var(--red);
  color: #fff;
  box-shadow: 0 4px 15px var(--red-glow);
}

.btn-primary:hover {
  background-color: #c2000a;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 0, 13, 0.4);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn-outline:hover {
  background-color: rgba(0, 212, 232, 0.1);
  box-shadow: 0 4px 15px var(--cyan-glow);
  transform: translateY(-2px);
}

/* Section Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease,
    transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* ==========================================================================
           NAVBAR
           ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.25rem 0;
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background-color: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 1px;
  z-index: 1001;
}

.logo-short {
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--trans-fast);
  position: relative;
}

.nav-links a:hover {
  color: var(--cyan);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.lang-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--glass-border);
  color: #fff;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--trans-fast);
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--cyan);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1001;
}

/* ==========================================================================
           HERO SECTION
           ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
  background-color: var(--dark);
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(
      circle at 15% 30%,
      rgba(0, 212, 232, 0.08),
      transparent 40%
    ),
    radial-gradient(circle at 85% 70%, rgba(232, 0, 13, 0.05), transparent 40%);
  z-index: 1;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center center;
  z-index: 1;
  opacity: 0.5;
  transform: perspective(500px) rotateX(60deg) translateY(-100px) scale(3);
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% {
    transform: perspective(500px) rotateX(60deg) translateY(-100px) scale(3);
  }
  100% {
    transform: perspective(500px) rotateX(60deg) translateY(0px) scale(3);
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #ffffff, #a0aec0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}

.hero p {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 1.25rem 2rem;
  background: linear-gradient(
    135deg,
    rgba(23, 47, 74, 0.4),
    rgba(18, 40, 64, 0.4)
  );
  border: 1px solid rgba(138, 178, 219, 0.15);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  max-width: 600px;
  margin: 0 auto;
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1rem;
}

.hero-stat-item:not(:last-child) {
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat-val {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--cyan);
  font-size: 1.2rem;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounce 2s infinite;
  opacity: 0.6;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0) translateX(-50%);
  }
  40% {
    transform: translateY(-15px) translateX(-50%);
  }
  60% {
    transform: translateY(-7px) translateX(-50%);
  }
}

/* ==========================================================================
           SERVICES SECTION
           ========================================================================== */
.services {
  padding: 6rem 0;
  background-color: var(--mid-dark);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: inline-block;
  position: relative;
}

.section-header h2::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--cyan);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background: var(--dark);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 2.5rem 2rem;
  transition: var(--trans-med);
  position: relative;
  overflow: hidden;
  border-left: 3px solid transparent;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(232, 0, 13, 0.05) 0%,
    transparent 100%
  );
  opacity: 0;
  transition: var(--trans-med);
}

.service-card:hover {
  transform: translateY(-8px);
  border-left: 3px solid var(--cyan);
  border-color: rgba(0, 212, 232, 0.3);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--red);
  font-size: 1.5rem;
  border: 1px solid rgba(232, 0, 13, 0.2);
  transition: var(--trans-med);
}

.service-card:hover .service-icon {
  color: var(--cyan);
  border-color: rgba(0, 212, 232, 0.3);
  box-shadow: 0 0 15px var(--cyan-glow);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  position: relative;
  z-index: 2;
}

/* Card accordion animation */
@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.service-card.filter-anim {
  animation: cardFadeIn 0.3s ease forwards;
}

.service-card.filtered-out {
  display: none;
}

.services-tier-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2rem;
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--cyan);
  border-radius: 6px;
  background: var(--dark);
  cursor: pointer;
  user-select: none;
  transition: var(--trans-fast);
}

.services-tier-header:hover {
  border-color: rgba(0, 212, 232, 0.4);
  border-left-color: var(--red);
  background: rgba(255, 255, 255, 0.02);
}

.services-tier-header h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cyan);
  font-family: var(--font-head);
  font-weight: 600;
  margin: 0;
}

.tier-chevron {
  color: var(--cyan);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.services-tier-header.collapsed .tier-chevron {
  transform: rotate(-90deg);
}

/* AI Advisor Feature */
.ai-advisor {
  margin-top: 5rem;
  background: linear-gradient(
    145deg,
    rgba(10, 14, 26, 0.95),
    rgba(18, 25, 43, 0.95)
  );
  border: 1px solid rgba(0, 212, 232, 0.3);
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 212, 232, 0.1);
  position: relative;
  overflow: hidden;
}

.ai-advisor::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    rgba(0, 212, 232, 0.05) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.ai-advisor h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #fff;
}

.ai-advisor p.subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.ai-input-group {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.ai-input-group .form-control {
  flex: 1;
  background: rgba(255, 255, 255, 0.03);
}

.spinner {
  animation: spin 1s linear infinite;
  stroke: var(--cyan);
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

/* ==========================================================================
           CERTIFICATIONS SECTION
           ========================================================================== */
.certifications {
  padding: 5rem 0;
  background:
    radial-gradient(
      circle at 12% 18%,
      rgba(0, 181, 255, 0.22),
      transparent 42%
    ),
    radial-gradient(
      circle at 86% 76%,
      rgba(0, 229, 255, 0.16),
      transparent 46%
    ),
    linear-gradient(180deg, #0d1726 0%, #122033 52%, #0f1b2d 100%);
  color: #e6f0ff;
  overflow: hidden;
  position: relative;
}

.certifications::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(173, 208, 247, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(173, 208, 247, 0.05) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at center, black 28%, transparent 100%);
  opacity: 0.45;
}

.certifications .section-header h2::after {
  background: linear-gradient(90deg, var(--cyan), #7fdfff);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.42);
}

.certifications .section-header p {
  color: #a7bfdc;
}

/* Certifications Track */
.marquee-container {
  width: 100%;
  overflow: hidden;
  padding: 1.5rem 0;
  position: relative;
  margin-bottom: 3.5rem;
}

.marquee-container::before,
.marquee-container::after {
  content: "";
  position: absolute;
  top: 0;
  width: 74px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.marquee-container::before {
  left: 0;
  background: linear-gradient(
    to right,
    rgba(14, 29, 47, 1),
    rgba(14, 29, 47, 0)
  );
}

.marquee-container::after {
  right: 0;
  background: linear-gradient(
    to left,
    rgba(14, 29, 47, 1),
    rgba(14, 29, 47, 0)
  );
}

.marquee-content {
  display: flex;
  gap: 1rem;
  animation: marquee 36s linear infinite;
  padding: 0 1rem;
  width: max-content;
}

.marquee-container:hover .marquee-content {
  animation-play-state: paused;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.cert-track-card {
  width: 275px;
  min-height: 108px;
  background: linear-gradient(
    145deg,
    rgba(23, 47, 74, 0.82),
    rgba(18, 40, 64, 0.9)
  );
  border: 1px solid rgba(138, 178, 219, 0.4);
  border-radius: 12px;
  padding: 1.2rem;
  display: grid;
  grid-template-columns: 56px 1fr;
  grid-template-rows: auto auto;
  column-gap: 1.1rem;
  row-gap: 0.25rem;
  align-items: center;
  box-shadow: 0 14px 28px rgba(3, 10, 20, 0.42);
  white-space: normal;
  transition:
    transform 0.28s ease,
    border-color 0.28s ease,
    box-shadow 0.28s ease;
  position: relative;
  overflow: hidden;
}

.cert-track-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 55%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(0, 229, 255, 0.16),
    transparent
  );
  transition: left 0.45s ease;
}

.cert-track-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 181, 255, 0.65);
  box-shadow:
    0 20px 36px rgba(2, 14, 28, 0.56),
    0 0 0 1px rgba(0, 181, 255, 0.24);
}

.cert-track-card:hover::before {
  left: 115%;
}

.cert-card-logo {
  width: 100%;
  height: 56px;
  object-fit: contain;
  grid-column: 1;
  grid-row: 1 / span 2;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.25));
}

.cert-card-title {
  color: #eaf4ff;
  font-size: 0.85rem;
  line-height: 1.25;
  font-family: var(--font-body);
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 0;
  grid-column: 2;
  grid-row: 1;
  align-self: end;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 100%;
}

.cert-card-vendor {
  color: #9dc0e5;
  font-size: 0.65rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  grid-column: 2;
  grid-row: 2;
  align-self: start;
  opacity: 0.95;
}

/* Value Props */
.value-props {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  text-align: left;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.value-prop-item {
  background: linear-gradient(
    145deg,
    rgba(15, 35, 58, 0.72),
    rgba(11, 29, 48, 0.84)
  );
  border: 1px solid rgba(128, 168, 206, 0.28);
  border-radius: 16px;
  padding: 1.4rem;
  box-shadow: 0 12px 24px rgba(2, 10, 20, 0.36);
}

.value-prop-item h4 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: #e8f3ff;
}

.value-prop-item p {
  color: #9db6d3;
  font-size: 0.92rem;
}

.vp-icon {
  width: 54px;
  height: 54px;
  margin: 0 0 1rem 0;
  background: linear-gradient(
    160deg,
    rgba(0, 229, 255, 0.2),
    rgba(0, 87, 145, 0.18)
  );
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 1.5rem;
  box-shadow:
    inset 0 0 0 1px rgba(0, 181, 255, 0.28),
    0 8px 14px rgba(24, 60, 96, 0.18);
}

/* ==========================================================================
           ABOUT SECTION
           ========================================================================== */
.about {
  display: flex;
  flex-wrap: wrap;
  background-color: var(--mid-dark);
}

.about-left,
.about-right {
  flex: 1 1 50%;
  padding: 6rem 4rem;
}

.about-left {
  background-color: var(--dark);
  position: relative;
}

.about-left::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--cyan), transparent);
  box-shadow: 0 0 15px var(--cyan);
}

.about-left h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.about-left p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.about-right {
  background-color: var(--mid-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  width: 100%;
  max-width: 500px;
}

.stat-box {
  text-align: center;
}

.stat-number-wrap {
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.stat-label {
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
}

/* ==========================================================================
           CONTRACTING MODELS SECTION
           ========================================================================== */
.contracting {
  padding: 6rem 0;
  background-color: var(--dark);
}

.contracting-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}

.contracting-card {
  background: var(--mid-dark);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 2.5rem 2rem;
  transition: var(--trans-med);
  position: relative;
  overflow: hidden;
  border-top: 3px solid var(--cyan);
}

.contracting-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
  border-top-color: var(--red);
}

.contracting-card-number {
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 800;
  color: rgba(0, 212, 232, 0.12);
  line-height: 1;
  margin-bottom: 1.25rem;
}

.contracting-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.contracting-card > p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.contracting-card-details {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contracting-card-details li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.contracting-card-details li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-size: 0.8rem;
}

@media (max-width: 768px) {
  .contracting-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
           CONTACT SECTION
           ========================================================================== */
.contact {
  padding: 6rem 0;
  background-color: var(--dark);
  position: relative;
}

.contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at top right,
    rgba(232, 0, 13, 0.05),
    transparent 50%
  );
  pointer-events: none;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 4rem;
  background: var(--mid-dark);
  padding: 3rem;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  position: relative;
  z-index: 2;
}

.contact-form h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.contact-form > p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 4px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--trans-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 212, 232, 0.2);
}

select.form-control {
  appearance: none;
  cursor: pointer;
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-success {
  display: none;
  padding: 1rem;
  background: rgba(0, 212, 232, 0.1);
  border: 1px solid var(--cyan);
  border-radius: 4px;
  color: var(--cyan);
  margin-bottom: 1rem;
  font-weight: 500;
}

.contact-info {
  padding-left: 2rem;
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.info-icon {
  color: var(--red);
  font-size: 1.5rem;
}

.info-text h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.info-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: var(--trans-fast);
  border: 1px solid transparent;
}

.social-link:hover {
  background: var(--dark);
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-3px);
}

/* ==========================================================================
           FOOTER
           ========================================================================== */
footer {
  background-color: #05070d;
  padding: 4rem 0 2rem 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: 2px;
}

.footer-tagline {
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-muted);
  transition: color var(--trans-fast);
}

.footer-links a:hover {
  color: var(--cyan);
}

.copyright {
  color: #4a5568;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

/* ==========================================================================
           RESPONSIVE DESIGN
           ========================================================================== */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .contact-info {
    padding-left: 0;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  .logo {
    font-size: 1rem;
    gap: 0.5rem;
    max-width: calc(100vw - 120px);
    white-space: nowrap;
    overflow: hidden;
  }

  .logo-full {
    display: none;
  }

  .logo-short {
    display: inline;
  }

  .logo img {
    height: 26px !important;
  }

  .nav-links,
  .nav-actions .btn {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .nav-actions {
    gap: 1rem;
  }

  .ai-input-group {
    flex-direction: column;
  }

  /* Mobile Menu Overlay logic can be added, for now hidden natively */
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--dark);
    padding: 2rem;
    border-bottom: 1px solid var(--glass-border);
  }
  .nav-links.active a {
    padding: 1rem 0;
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .hero {
    padding-bottom: 5rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
  }

  .hero-buttons .btn {
    width: 100%;
    max-width: 360px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }
  .hero-stat-item:not(:last-child) {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .value-props {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .about-left,
  .about-right {
    flex: 1 1 100%;
    padding: 4rem 2rem;
  }
  .about-left::after {
    width: 100%;
    height: 4px;
    top: auto;
    bottom: 0;
    left: 0;
    background: linear-gradient(
      to right,
      transparent,
      var(--cyan),
      transparent
    );
  }
  .stats-grid {
    gap: 2rem;
  }
  .contact-wrapper {
    padding: 2rem;
  }

  .marquee-content {
    gap: 0.9rem;
    padding: 0 1rem;
  }

  .cert-track-card {
    width: 250px;
    min-height: 96px;
    grid-template-columns: 50px 1fr;
    padding: 1rem;
    column-gap: 1rem;
  }

  .cert-card-logo {
    height: 50px;
  }

  .cert-card-title {
    font-size: 0.8rem;
  }

  .cert-card-vendor {
    font-size: 0.6rem;
  }

  .value-prop-item {
    text-align: center;
  }

  .vp-icon {
    margin: 0 auto 1rem auto;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-top: 96px;
    padding-bottom: 6rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-stats {
    padding: 1rem;
  }

  .hero-stat-label {
    font-size: 0.75rem;
  }

  .contact-wrapper {
    padding: 1.25rem;
  }

  .logo-hint {
    font-size: 0.8rem;
    margin-bottom: 2rem;
  }

  .marquee-container {
    padding: 0.75rem 0;
  }

  .marquee-content {
    gap: 0.75rem;
  }

  .cert-track-card {
    width: 230px;
    min-height: 84px;
    padding: 0.85rem;
    grid-template-columns: 46px 1fr;
    column-gap: 0.8rem;
  }

  .cert-card-logo {
    height: 46px;
  }

  .cert-card-title {
    font-size: 0.75rem;
  }

  .cert-card-vendor {
    font-size: 0.55rem;
  }
}

/* Utility Classes */
.color-cyan {
  color: var(--cyan);
}
.color-red {
  color: var(--red);
}

/* ==========================================================================
   INTERACTIVE FLOATING LOGO
   ========================================================================== */
.hero-interactive-logo {
  position: relative;
  width: 450px;
  height: 450px;
  max-width: 80vw;
  margin: 0 auto 3rem auto;
  cursor: grab;
  perspective: 1500px;
  z-index: 10;
  animation: floatLogo 4s ease-in-out infinite;
  touch-action: none;
  user-select: none;
}

@media (max-width: 768px) {
  .hero-interactive-logo {
    width: 320px;
    height: 320px;
    margin-bottom: 2rem;
  }
}

@media (max-width: 480px) {
  .hero-interactive-logo {
    width: 230px;
    height: 230px;
    max-width: 88vw;
    margin-bottom: 1.5rem;
  }
}

.hero-interactive-logo:active {
  cursor: grabbing;
}

.logo-3d-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.logo-3d-wrapper.no-transition {
  transition: none;
}

.hero-interactive-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  position: absolute;
  top: 0;
  left: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.5));
}

/* Front side (Blue Logo) */
.logo-front {
  transform: rotateY(0deg);
}

/* Back side (Red Logo) */
.logo-back {
  transform: rotateY(180deg);
}

/* Glowing Aura behind it */
.glow-effect {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 150%;
  height: 150%;
  background: radial-gradient(circle, var(--red-glow) 0%, transparent 60%);
  z-index: -1;
  transition: background 0.6s ease;
  animation: pulseGlow 4s ease-in-out infinite;
}

.hero-interactive-logo.is-switched .glow-effect {
  background: radial-gradient(circle, var(--cyan-glow) 0%, transparent 60%);
}

/* Tiny subtitle to invite interaction */
.logo-hint {
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 1rem;
  margin-bottom: 3rem;
  cursor: pointer;
  transition: color 0.3s ease;
  letter-spacing: 0.5px;
  position: relative;
  z-index: 10;
  text-transform: uppercase;
  font-weight: 500;
}

.logo-hint:hover {
  color: var(--cyan);
}

.hero-interactive-logo.is-switched + .logo-hint:hover {
  color: var(--red);
}

/* Animations */
@keyframes floatLogo {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes pulseGlow {
  0% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.9;
    transform: translate(-50%, -50%) scale(1.05);
  }
  100% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1);
  }
}