/* ==========================================================================
   ATAUR DIGITAL MARKETING AGENCY - CORE STYLESHEET
   Design System Foundation, Variables, Typography, Layout, Buttons, Animations
   ========================================================================== */

:root {
  --red: #d7262e;
  --red-hover: #b81f26;
  --red-light: rgba(215, 38, 46, 0.08);
  --red-border: rgba(215, 38, 46, 0.28);
  --border-red: rgba(215, 38, 46, 0.24);
  --font: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --r: 24px;
  --r-sm: 16px;
  --wrap: 1180px;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-alt: #f5f5f2;
  --card: #ffffff;
  --card-2: #f1f1ee;
  --nav-bg: rgba(255, 255, 255, 0.85);
  --text-primary: #0e0e11;
  --text-secondary: #4f4f58;
  --text-muted: #85858f;
  --border: rgba(14, 14, 17, 0.09);
  --shadow: rgba(14, 14, 17, 0.10);
  --svc-bg: #ffffff;
  --svc-hover: #ffffff;
  --input-bg: #f5f5f2;
  --modal-bg: #ffffff;
  --modal-top: linear-gradient(135deg, #fff5f5, #fce8e8);
}

[data-theme="dark"] {
  --bg: #0b0b0d;
  --bg-alt: #111114;
  --card: #17171b;
  --card-2: #1e1e23;
  --nav-bg: rgba(20, 20, 24, 0.82);
  --text-primary: #f6f6f8;
  --text-secondary: #b5b5bf;
  --text-muted: #7f7f8a;
  --border: rgba(255, 255, 255, 0.09);
  --shadow: rgba(0, 0, 0, 0.55);
  --svc-bg: #17171b;
  --svc-hover: #1c1c21;
  --input-bg: #111114;
  --modal-bg: #141417;
  --modal-top: linear-gradient(135deg, #1a0000, #270404);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s ease, color 0.35s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

main {
  overflow-x: clip;
}

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

.wrap {
  width: min(var(--wrap), 92%);
  margin: 0 auto;
}

/* ---------- Keyframe Animations ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.45); }
  70% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* ---------- Buttons & Links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font: 600 0.92rem/1 var(--font);
  text-decoration: none;
  border-radius: 100px;
  padding: 8px 8px 8px 24px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}

.btn .arr {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.btn:hover .arr {
  transform: rotate(45deg);
}

.btn-primary {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.btn-primary .arr {
  background: #fff;
  color: var(--red);
}

.btn-primary:hover {
  background: var(--red-hover);
  border-color: var(--red-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(215, 38, 46, 0.32);
}

.btn-line {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-line .arr {
  background: var(--text-primary);
  color: var(--bg);
}

.btn-line:hover {
  border-color: var(--red);
  color: var(--red);
  transform: translateY(-2px);
}

.btn-line:hover .arr {
  background: var(--red);
  color: #fff;
}

.btn-lg {
  padding: 10px 10px 10px 28px;
  font-size: 1rem;
}

.btn-lg .arr {
  width: 40px;
  height: 40px;
}

.btn-block {
  width: 100%;
  justify-content: space-between;
  padding-left: 28px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--text-primary);
  border-bottom: 1.5px solid var(--border);
  padding-bottom: 3px;
  transition: border-color 0.2s, color 0.2s, gap 0.2s;
}

.link-arrow:hover {
  color: var(--red);
  border-color: var(--red);
  gap: 12px;
}

.btn-red {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red);
  color: #fff;
  border: 1.5px solid var(--red);
  border-radius: 100px;
  padding: 12px 26px;
  font: 600 0.9rem/1 var(--font);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-red:hover {
  background: var(--red-hover);
  border-color: var(--red-hover);
  transform: translateY(-2px);
}

/* ---------- Pills, Badges & Headings ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--red-light);
  border: 1px solid var(--red-border);
  color: var(--red);
  border-radius: 100px;
  padding: 7px 16px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 22px;
}

.pill-line {
  background: var(--card);
  border-color: var(--border);
  color: var(--text-secondary);
}

.pill-line::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.45);
  animation: ping 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ---------- Sections ---------- */
.sec {
  padding: 110px 0;
  background: var(--bg);
  transition: background 0.35s ease;
}

.sec-alt {
  background: var(--bg-alt);
}

.sec-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.sec-head-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.sec-title {
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.sec-title em,
.hero-title em {
  font-style: normal;
  color: var(--red);
}

.sec-desc {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 580px;
}

.sec-head-center .sec-desc {
  margin: 0 auto;
}

/* ---------- Scroll Reveal Observer ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.d0 { transition-delay: 0s; }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }

/* ---------- Responsive Breakpoints (Base) ---------- */
@media (max-width: 960px) {
  .sec {
    padding: 76px 0;
  }
}

@media (max-width: 640px) {
  .sec-head {
    margin-bottom: 38px;
  }
  .btn-lg {
    width: 100%;
    justify-content: space-between;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .pulse {
    animation: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}