/* ===================================================
   NONEAN38 SYSTEMS - Main Stylesheet
   Brand palette sourced from the official Nonean Systems
   "Business Framework 2026" deck title slide:
     - Dark navy background : #0c1e36
     - Orange/amber accent  : #cd713c
     - Heading text (white) : #ffffff
     - Muted caption text   : #7a8b9e
   Custom styles that complement Tailwind CSS utility classes
   (see the tailwind.config color extension in each HTML head)
   =================================================== */

:root {
  --brand-dark: #0c1e36;      /* primary dark navy background */
  --brand-primary: #16324f;   /* slightly lighter navy, used in gradients */
  --brand-secondary: #24405c; /* mid navy, gradient/tint helper */
  --brand-accent: #cd713c;    /* signature orange/amber accent */
  --brand-accent-dark: #b25f30;
  --brand-muted: #7a8b9e;     /* muted slate for captions */
  --brand-light: #f4f6f8;     /* light section background tint */
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: #1f2937;
  background-color: #ffffff;
}

h1, h2, h3, h4, .font-display {
  font-family: 'Poppins', sans-serif;
}

/* ---------- Header / Navigation ---------- */
#site-header {
  background: linear-gradient(90deg, var(--brand-dark), var(--brand-primary));
}

#main-nav a.nav-link {
  position: relative;
  transition: color 0.2s ease;
}

#main-nav a.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0%;
  height: 2px;
  background-color: var(--brand-accent);
  transition: width 0.25s ease;
}

#main-nav a.nav-link:hover::after,
#main-nav a.nav-link.active::after {
  width: 100%;
}

#main-nav a.nav-link.active {
  color: var(--brand-accent);
}

#mobile-menu {
  transition: max-height 0.3s ease;
}

/* ---------- Hero Section ---------- */
.hero-section {
  background: radial-gradient(circle at top right, rgba(205,113,60,0.18), transparent 60%),
              linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-primary) 60%, var(--brand-secondary) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.5;
}

.page-hero {
  background: linear-gradient(120deg, var(--brand-dark), var(--brand-primary));
}

/* ---------- Buttons ---------- */
.btn-accent {
  background-color: var(--brand-accent);
  color: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-accent:hover {
  background-color: var(--brand-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -8px rgba(205,113,60,0.5);
}

.btn-outline-light {
  border: 2px solid #fff;
  color: #fff;
  transition: all 0.2s ease;
}

.btn-outline-light:hover {
  background-color: #fff;
  color: var(--brand-dark);
}

/* ---------- Cards ---------- */
.feature-card, .service-card, .product-card, .value-card, .team-card {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border: 1px solid #e5e7eb;
}

.feature-card:hover, .service-card:hover, .product-card:hover, .value-card:hover, .team-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 30px -15px rgba(12,30,54,0.25);
  border-color: var(--brand-accent);
}

.icon-badge {
  background: linear-gradient(135deg, var(--brand-dark), var(--brand-accent));
  color: #fff;
}

/* ---------- Stats ---------- */
.stat-number {
  font-family: 'Poppins', sans-serif;
  color: var(--brand-accent);
}

/* ---------- Timeline (About page) ---------- */
.timeline-item {
  border-left: 3px solid var(--brand-accent);
  padding-left: 1.5rem;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 0;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: var(--brand-accent);
  border: 3px solid #fff;
}

/* ---------- Footer ---------- */
#site-footer {
  background-color: var(--brand-dark);
}

#site-footer a:hover {
  color: var(--brand-accent);
}

.social-icon {
  background-color: rgba(255,255,255,0.08);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.social-icon:hover {
  background-color: var(--brand-accent);
  transform: translateY(-3px);
}

/* ---------- Forms ---------- */
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 3px rgba(205,113,60,0.2);
}

/* ---------- Utility ---------- */
.section-tag {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-accent);
  font-weight: 600;
}

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

.fade-in {
  animation: fadeIn 0.6s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

#back-to-top {
  transition: opacity 0.3s ease, transform 0.3s ease;
}