/* =========================================
   RESET / ROOT / GLOBAL
========================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

:root {
  /* Brand palette */
  --indigo: #4b3cf0;
  --pumpkin: #ff7a1a;
  --deep-sky: #00bfff;

  /* Main colors */
  --bg-main: #07111f;
  --bg-dark: #050c17;
  --bg-soft: #0c1830;

  --text-main: #f4f8ff;
  --text-soft: #aebed8;
  --text-muted: #86a0c5;

  --border-soft: rgba(255, 255, 255, 0.12);
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.22);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.32);

  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 30px;

  --container-width: 1220px;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.section {
  padding: 110px 0;
  position: relative;
}

.section-dark {
  background:
    radial-gradient(circle at top left, rgba(75, 60, 240, 0.12), transparent 25%),
    radial-gradient(circle at bottom right, rgba(0, 191, 255, 0.09), transparent 28%),
    linear-gradient(180deg, #081120 0%, #050c17 100%);
}

.section-tag {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--deep-sky);
}

.section-tag.light {
  color: #eef9ff;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 60px;
}

.section-heading.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-heading h2,
.text-col h2,
.contact-info h2 {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 16px;
  font-weight: 900;
}

.section-heading p,
.text-col p,
.contact-info p {
  color: var(--text-soft);
  font-size: 1.04rem;
}

.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 4px;
  width: 0%;
  z-index: 2000;
  background: linear-gradient(90deg, var(--indigo), var(--pumpkin), var(--deep-sky));
}

/* =========================================
   PREMIUM BUTTONS
========================================== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: all 0.28s ease;
  cursor: pointer;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--pumpkin), #ff9a57);
  color: #fff;
  box-shadow: 0 16px 34px rgba(255, 122, 26, 0.26);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 44px rgba(255, 122, 26, 0.35);
}

.btn-secondary {
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border-color: rgba(255,255,255,0.14);
  color: #fff;
}

.btn-secondary:hover {
  transform: translateY(-3px);
  border-color: rgba(0,191,255,0.4);
  box-shadow: 0 12px 28px rgba(0, 191, 255, 0.12);
}

.btn-dark {
  background: rgba(10, 20, 40, 0.34);
  border-color: rgba(255,255,255,0.18);
  color: #fff;
}

.btn-dark:hover {
  transform: translateY(-3px);
  background: rgba(10, 20, 40, 0.52);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255,255,255,0.25);
  color: #fff;
}

.btn-outline-light:hover {
  transform: translateY(-3px);
  background: rgba(255,255,255,0.08);
}

.full-width {
  width: 100%;
}

/* =========================================
   FLOATING BUTTONS
========================================== */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 999;
  min-height: 58px;
  padding: 0 18px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, #19c860, #25d366);
  box-shadow: 0 14px 30px rgba(37, 211, 102, 0.28);
  transition: 0.25s ease;
}

.whatsapp-float:hover {
  transform: translateY(-4px) scale(1.03);
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 92px;
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--indigo), var(--deep-sky));
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: 998;
  box-shadow: 0 14px 30px rgba(75, 60, 240, 0.28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: 0.25s ease;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
}

/* =========================================
   REVEAL ANIMATIONS
========================================== */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: transform 0.8s ease, opacity 0.8s ease;
  will-change: transform, opacity;
}

.reveal-up {
  transform: translateY(40px);
}

.reveal-left {
  transform: translateX(-40px);
}

.reveal-right {
  transform: translateX(40px);
}

.reveal-up.show,
.reveal-left.show,
.reveal-right.show {
  opacity: 1;
  transform: translate(0, 0);
}

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.40s; }

@media (max-width: 820px) {
  .section {
    padding: 90px 0;
  }

  .whatsapp-float {
    right: 16px;
    bottom: 16px;
  }

  .back-to-top {
    right: 16px;
    bottom: 84px;
  }
}