/* ============================================================
   NTS Enterprise Theme — Main Stylesheet
   Niraltek Solutions
   ============================================================ */

/* ── 1. CSS VARIABLES ──────────────────────────────────────── */
:root {
  /* Brand Colors */
  --color-navy:       #0E2A5E;
  --color-navy-deep:  #081C45;
  --color-midnight:   #080F1E;
  --color-teal:       #00C2A8;
  --color-teal-dark:  #009E88;
  --color-cobalt:     #2563EB;

  /* Neutral */
  --color-white:      #FFFFFF;
  --color-off-white:  #F5F7FA;
  --color-border:     #E2E8F0;
  --color-charcoal:   #1A1A2E;
  --color-slate:      #64748B;
  --color-slate-lt:   #94A3B8;

  /* Semantic */
  --color-success:    #10B981;
  --color-warning:    #F59E0B;
  --color-danger:     #EF4444;

  /* Typography */
  --font-heading:     'Poppins', sans-serif;
  --font-body:        'Inter', sans-serif;

  /* Sizes */
  --header-h:         72px;
  --radius-sm:        6px;
  --radius-md:        12px;
  --radius-lg:        20px;
  --radius-xl:        28px;
  --radius-pill:      100px;

  /* Shadows */
  --shadow-sm:        0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:        0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:        0 12px 40px rgba(0,0,0,.14);
  --shadow-teal:      0 8px 32px rgba(0,194,168,.25);
  --shadow-navy:      0 8px 32px rgba(14,42,94,.25);

  /* Transitions */
  --transition:       0.25s ease;
  --transition-slow:  0.4s ease;

  /* Layout */
  --container-wide:   1280px;
  --container-std:    1100px;
  --section-py:       96px;
}

/* ── 2. RESET & BASE ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-charcoal);
  background: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ── 3. TYPOGRAPHY ─────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-charcoal);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1rem; font-weight: 600; }

p { color: var(--color-slate); line-height: 1.75; }

.text-white  { color: var(--color-white)  !important; }
.text-teal   { color: var(--color-teal)   !important; }
.text-navy   { color: var(--color-navy)   !important; }
.text-slate  { color: var(--color-slate-lt) !important; }
.mt-24       { margin-top: 24px !important; }
.mt-32       { margin-top: 32px !important; }

/* ── 4. LAYOUT ─────────────────────────────────────────────── */
.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: var(--section-py);
}

.section--gray    { background: var(--color-off-white); }
.section--dark    { background: var(--color-midnight); }
.section--dark-navy { background: var(--color-navy); }

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 56px;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 12px;
}

.section-eyebrow--teal { color: var(--color-teal); }

.section-title {
  color: var(--color-charcoal);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-slate);
}

.section-header--light .section-title { color: var(--color-white); }
.section-header--light .section-subtitle { color: var(--color-slate-lt); }

.section-footer-cta {
  text-align: center;
  margin-top: 48px;
}

/* ── 5. BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.btn--sm  { padding: 10px 22px; font-size: 0.85rem; }
.btn--md  { padding: 12px 28px; }
.btn--lg  { padding: 15px 36px; font-size: 1rem; }
.btn--full { width: 100%; justify-content: center; }

.btn--teal {
  background: var(--color-teal);
  color: var(--color-midnight);
  border-color: var(--color-teal);
}
.btn--teal:hover {
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-teal);
}

.btn--navy {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}
.btn--navy:hover {
  background: var(--color-navy-deep);
  transform: translateY(-2px);
  box-shadow: var(--shadow-navy);
}

.btn--dark {
  background: var(--color-midnight);
  color: var(--color-white);
  border-color: var(--color-midnight);
}
.btn--dark:hover {
  background: #0D1626;
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-navy);
}
.btn--ghost:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.7);
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-midnight);
  border-color: var(--color-midnight);
}
.btn--outline-dark:hover {
  background: var(--color-midnight);
  color: var(--color-white);
}

/* ── 6. BADGES & TAGS ──────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
}

.tag--teal  { background: rgba(0,194,168,.12); color: var(--color-teal-dark); }
.tag--navy  { background: rgba(14,42,94,.08);  color: var(--color-navy); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  font-family: var(--font-heading);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge--outline   { border: 1px solid rgba(255,255,255,.3); color: rgba(255,255,255,.7); }
.badge--teal-sm   { background: rgba(0,194,168,.15); color: var(--color-teal); padding: 4px 10px; font-size: 0.68rem; }