/* ==============================================================
   TLOU CLOUD CO — Main Stylesheet
   Palette derived from logo: blue #1565C0, teal #00ACC1, gold #F4A432
   ============================================================== */

/* ---- Design Tokens ---- */
:root {
  /* Brand colours */
  --c-primary:         #1565C0;
  --c-primary-light:   #1E88E5;
  --c-primary-dark:    #0D47A1;
  --c-secondary:       #00ACC1;
  --c-secondary-light: #26C6DA;
  --c-accent:          #F4A432;
  --c-accent-dark:     #E09020;

  /* Surfaces */
  --c-dark:         #0A1929;
  --c-dark-surface: #0D2137;
  --c-dark-card:    #112240;
  --c-dark-border:  rgba(255, 255, 255, 0.09);
  --c-light:        #F0F7FF;
  --c-white:        #FFFFFF;

  /* Text */
  --c-text:       #1A2B4A;
  --c-text-muted: #4A6080;
  --c-text-light: #CBD8E7;
  --c-border:     #D6E8F8;

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;

  /* Radii */
  --r-sm: 6px;
  --r:    12px;
  --r-lg: 20px;
  --r-xl: 32px;

  /* Shadows */
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.08);
  --shadow:    0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.18);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.22);

  /* Easing */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 150ms;
  --t-base: 250ms;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; font-size: 16px; }
body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select { font: inherit; }

/* ---- Layout ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section { padding: 6rem 0; }
.dark-section { background: var(--c-dark); color: var(--c-white); }

@media (max-width: 768px) {
  .container { padding: 0 1rem; }
  .section   { padding: 4rem 0; }
}

/* ---- Typography ---- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem,    5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
p  { color: var(--c-text-muted); }

.gradient-text {
  background: linear-gradient(135deg, var(--c-secondary-light), var(--c-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--t-base) var(--ease);
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: var(--c-white);
  box-shadow: 0 4px 20px rgba(21, 101, 192, 0.38);
}
.btn-primary:hover, .btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(21, 101, 192, 0.5);
}
.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: var(--c-white);
}
.btn-outline:hover, .btn-outline:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--c-white);
}
.btn-full { width: 100%; }
.btn:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 3px; }

/* ---- Section headers ---- */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem;
}
.section-header h2 { margin-top: 0.75rem; }
.section-sub  { margin-top: 1rem; font-size: 1.0625rem; }
.section-sub.light  { color: var(--c-text-light); }
.section-header h2.light { color: var(--c-white); }
.link-light { color: var(--c-secondary-light); text-decoration: underline; }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-secondary);
  background: rgba(0, 172, 193, 0.1);
  border: 1px solid rgba(0, 172, 193, 0.25);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
}
.section-label.light {
  color: var(--c-secondary-light);
  background: rgba(0, 172, 193, 0.15);
}

/* ---- Scroll animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in       { animation: fadeInUp 0.8s var(--ease) forwards; }
.fade-in-delay { animation: fadeInUp 0.8s var(--ease) 0.25s both; }

.reveal, .reveal-delay {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
.reveal-delay  { transition-delay: 0.15s; }
.revealed      { opacity: 1; transform: translateY(0); }

/* ================================================================
   NAVIGATION
================================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.site-header.scrolled {
  background: rgba(10, 25, 41, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
/* Logo is 1408×768 (1.833:1 ratio); height drives the scale, width auto-follows */
.logo-img { height: 58px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.9375rem;
  font-weight: 500;
}
.nav-links a {
  color: rgba(255, 255, 255, 0.82);
  transition: color var(--t-fast) var(--ease);
  position: relative;
  padding-bottom: 2px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--c-secondary);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform var(--t-base) var(--ease);
}
.nav-links a:hover { color: var(--c-white); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--c-white); }

.nav-cta {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary)) !important;
  color: var(--c-white) !important;
  padding: 0.5rem 1.5rem !important;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(21,101,192,0.38);
}
.nav-cta::after { display: none !important; }
.nav-cta:hover  { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(21,101,192,0.5) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  color: white;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all var(--t-base) var(--ease);
}

/* ================================================================
   HERO
================================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark);
  padding-top: 80px;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 75% 65% at 68% 48%, rgba(21,101,192,0.22) 0%, transparent 70%),
    radial-gradient(ellipse 55% 50% at 25% 80%, rgba(0,172,193,0.14) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 82% 18%, rgba(244,164,50,0.09) 0%, transparent 55%);
  pointer-events: none;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding-top: 4rem;
  padding-bottom: 4rem;
}
.hero-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  background: rgba(244, 164, 50, 0.12);
  border: 1px solid rgba(244, 164, 50, 0.28);
  border-radius: 999px;
  padding: 0.3rem 1rem;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: clamp(1.875rem, 4.5vw, 3.25rem);
  color: var(--c-white);
  margin-bottom: 1.5rem;
  line-height: 1.15;
}
.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--c-text-light);
  max-width: 500px;
  margin-bottom: 2rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--c-text-light);
  flex-wrap: wrap;
}
.hero-stat strong { color: var(--c-white); }
.divider { color: rgba(255,255,255,0.22); }

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-poster {
  width: 100%;
  max-width: 400px;
  border-radius: var(--r-lg);
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 60px rgba(21,101,192,0.18);
  border: 1px solid rgba(255,255,255,0.07);
  object-fit: cover;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
}
.hero-scroll-hint span {
  display: block;
  width: 2px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.38), transparent);
  border-radius: 1px;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.25; transform: scaleY(0.5); transform-origin: top; }
  50%       { opacity: 1;    transform: scaleY(1); }
}

/* ================================================================
   ABOUT
================================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.about-text p      { margin-bottom: 1rem; }
.about-text .btn   { margin-top: 1rem; }
.about-text .lead  { font-size: 1.0625rem; color: var(--c-text); font-weight: 400; line-height: 1.8; }

.about-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.about-card {
  background: var(--c-light);
  border: 1px solid var(--c-border);
  border-radius: var(--r);
  padding: 1.5rem;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.about-card-icon  { width: 44px; height: 44px; color: var(--c-primary); margin-bottom: 1rem; }
.about-card h3    { font-size: 1rem; margin-bottom: 0.5rem; color: var(--c-text); }
.about-card p     { font-size: 0.875rem; }

/* ================================================================
   SERVICES
================================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--c-dark-card);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-lg);
  padding: 2rem;
  transition: all var(--t-base) var(--ease);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  border-color: rgba(0, 172, 193, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.service-icon { width: 52px; height: 52px; color: var(--c-secondary); margin-bottom: 1.5rem; transition: color var(--t-base) var(--ease); }
.service-card:hover .service-icon { color: var(--c-accent); }
.service-card h3 { color: var(--c-white); font-size: 1.2rem; margin-bottom: 0.75rem; }
.service-card p  { color: var(--c-text-light); font-size: 0.9375rem; line-height: 1.75; }

.service-features {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.service-features li {
  font-size: 0.875rem;
  color: var(--c-text-light);
  padding-left: 1rem;
  position: relative;
}
.service-features li::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--c-secondary);
}
.service-card--cta {
  border-style: dashed;
  border-color: rgba(0, 172, 193, 0.3);
}
.service-card--cta .btn { margin-top: auto; padding-top: 1.5rem; }

/* ================================================================
   WHY CHOOSE US
================================================================ */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.why-card {
  padding: 2rem;
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
  background: var(--c-white);
  transition: all var(--t-base) var(--ease);
}
.why-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--c-secondary);
}
.why-number {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--c-border);
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: -0.05em;
}
.why-card h3 { font-size: 1.2rem; margin-bottom: 0.75rem; color: var(--c-text); }
.why-card p  { font-size: 0.9375rem; line-height: 1.8; }

/* ================================================================
   PORTFOLIO
================================================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.portfolio-card {
  background: var(--c-dark-card);
  border: 1px solid var(--c-dark-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all var(--t-base) var(--ease);
}
.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  border-color: rgba(0, 172, 193, 0.4);
}
.portfolio-img-wrap {
  position: relative;
  padding-top: 60%;
  background: linear-gradient(135deg, var(--c-dark-surface), var(--c-dark-card));
}
.portfolio-placeholder {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.portfolio-placeholder svg { width: 64px; height: 64px; color: rgba(255,255,255,0.1); }
.portfolio-tag {
  position: absolute;
  top: 1rem; left: 1rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: rgba(244, 164, 50, 0.15);
  border: 1px solid rgba(244, 164, 50, 0.3);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
}
.portfolio-body { padding: 1.5rem; }
.portfolio-body h3 { color: var(--c-white); font-size: 1.2rem; margin-bottom: 0.5rem; }
.portfolio-body p  { color: var(--c-text-light); font-size: 0.9rem; line-height: 1.75; margin-bottom: 1rem; }
.portfolio-stack   { font-size: 0.75rem; color: var(--c-secondary-light); font-weight: 500; }

/* ================================================================
   CONTACT
================================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 4rem;
  align-items: start;
}
.contact-info h2  { color: var(--c-text); margin: 0.75rem 0 1rem; }
.contact-info p   { margin-bottom: 2rem; }

.contact-details  { display: flex; flex-direction: column; gap: 1rem; }
.contact-details li {
  display: flex; align-items: flex-start;
  gap: 0.75rem; font-size: 1rem; color: var(--c-text);
}
.contact-details svg { width: 20px; height: 20px; color: var(--c-primary); flex-shrink: 0; margin-top: 2px; }
.contact-details a:hover { color: var(--c-primary); text-decoration: underline; }

.contact-form {
  background: var(--c-light);
  border: 1px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: 2.5rem;
}
.form-row     { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group   { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1.25rem; }
label         { font-size: 0.875rem; font-weight: 600; color: var(--c-text); }
label span    { color: var(--c-primary); margin-left: 2px; }

input, select, textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--r);
  background: var(--c-white);
  color: var(--c-text);
  font-size: 1rem;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
input::placeholder, textarea::placeholder { color: var(--c-text-muted); opacity: 0.65; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}
select    { cursor: pointer; }
textarea  { resize: vertical; min-height: 140px; }
.form-note { font-size: 0.75rem; color: var(--c-text-muted); margin-top: 0.75rem; text-align: center; }

/* ================================================================
   FOOTER
================================================================ */
.footer {
  background: var(--c-dark);
  color: var(--c-text-light);
  padding: 5rem 0 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}
.footer-logo         { margin-bottom: 1rem; height: 70px; width: auto; }
.footer-brand p      { font-size: 0.875rem; color: var(--c-text-light); }
.footer-tagline      { color: var(--c-secondary); font-size: 0.875rem; font-weight: 500; margin-top: 0.5rem; }

.footer-nav h4, .footer-services h4, .footer-contact h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}
.footer-nav ul, .footer-services ul { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-nav a     { font-size: 0.875rem; color: var(--c-text-light); transition: color var(--t-fast) var(--ease); }
.footer-nav a:hover { color: var(--c-secondary); }
.footer-services li { font-size: 0.875rem; }

.footer-contact a   { font-size: 0.875rem; color: var(--c-text-light); display: block; transition: color var(--t-fast) var(--ease); }
.footer-contact a:hover { color: var(--c-secondary); }
.footer-web         { margin-top: 0.25rem; margin-bottom: 1.5rem; }

.footer-social { display: flex; gap: 0.75rem; margin-top: 1.5rem; }
.social-link {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--c-text-light);
  transition: all var(--t-base) var(--ease);
}
.social-link svg   { width: 17px; height: 17px; }
.social-link:hover { background: var(--c-primary); border-color: var(--c-primary); color: var(--c-white); transform: translateY(-2px); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.875rem;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-badges { display: flex; gap: 0.75rem; }
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  color: var(--c-secondary-light);
  background: rgba(0, 172, 193, 0.1);
  border: 1px solid rgba(0, 172, 193, 0.2);
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
}

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

@media (max-width: 900px) {
  .footer-grid  { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .about-grid   { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }
  .hero-visual   { order: -1; }
  .hero-poster   { max-width: 280px; margin: 0 auto; }
  .hero-actions  { justify-content: center; }
  .hero-meta     { justify-content: center; }
  .hero-subtitle { margin: 0 auto 2rem; }

  .services-grid  { grid-template-columns: 1fr; }
  .why-grid       { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .about-cards    { grid-template-columns: 1fr; }
  .form-row       { grid-template-columns: 1fr; }

  .footer-grid   { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }

  /* Mobile nav */
  .nav-links {
    display: none;
    position: fixed;
    top: 80px; left: 0; right: 0;
    background: rgba(10, 25, 41, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    align-items: stretch;
  }
  .nav-links.open { display: flex; }
  .nav-links li a {
    display: block;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
  .nav-links a::after { display: none; }
  .nav-cta {
    margin: 0.75rem 1.5rem 0 !important;
    border-radius: var(--r) !important;
    text-align: center;
  }
  .nav-toggle { display: flex; }
  .nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .contact-form { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .error-actions .btn { width: auto; }
}

/* ================================================================
   ACCESSIBILITY
================================================================ */
:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration:   0.01ms !important;
    transition-duration:  0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal, .reveal-delay { opacity: 1; transform: none; }
  .fade-in, .fade-in-delay { animation: none; opacity: 1; }
}