/* =========================================================
   PhillipsTech — MSP Website Styles
   ========================================================= */

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

:root {
  /* Colours */
  --clr-primary:     #0ea5e9;   /* sky-500   */
  --clr-primary-d:   #0284c7;   /* sky-600   */
  --clr-accent:      #6366f1;   /* indigo-500 */
  --clr-dark:        #0f172a;   /* slate-900  */
  --clr-dark-mid:    #1e293b;   /* slate-800  */
  --clr-dark-soft:   #334155;   /* slate-700  */
  --clr-muted:       #94a3b8;   /* slate-400  */
  --clr-light:       #f1f5f9;   /* slate-100  */
  --clr-white:       #ffffff;

  /* Typography */
  --font-body:    'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;

  /* Spacing */
  --section-py: 6rem;

  /* Border-radius */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0,0,0,.12);
  --shadow-hover: 0 12px 40px rgba(14,165,233,.25);

  /* Transitions */
  --transition: .3s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-dark);
  background: var(--clr-white);
  overflow-x: hidden;
}

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

a {
  color: var(--clr-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--clr-primary-d); }

ul { list-style: none; }

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section-inner {
  position: relative;
  z-index: 2;
  padding-block: var(--section-py);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: .75rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--clr-dark);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--clr-dark-soft);
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-white);
}
.btn-primary:hover {
  background: var(--clr-primary-d);
  color: var(--clr-white);
  box-shadow: 0 8px 24px rgba(14,165,233,.4);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,.5);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--clr-white);
  color: var(--clr-white);
}

/* =========================================================
   NAVIGATION
   ========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.1rem 0;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(15,23,42,.95);
  backdrop-filter: blur(12px);
  padding: .7rem 0;
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-white);
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: opacity var(--transition);
}
.nav-logo:hover { opacity: .85; color: var(--clr-white); }
.nav-logo span { color: var(--clr-primary); }
.logo-icon { color: var(--clr-primary); font-size: 1.2rem; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  color: rgba(255,255,255,.85);
  font-size: .95rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--clr-white); }

.btn-nav {
  background: var(--clr-primary);
  color: var(--clr-white) !important;
  padding: .45rem 1.2rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition) !important;
}
.btn-nav:hover {
  background: var(--clr-primary-d) !important;
  transform: translateY(-1px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--clr-white);
}

.hero-parallax {
  position: absolute;
  inset: -30% 0;
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 1440 900' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3ClinearGradient id='g1' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop offset='0' stop-color='%230f172a'/%3E%3Cstop offset='1' stop-color='%23164e63'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='1440' height='900' fill='url(%23g1)'/%3E%3Ccircle cx='800' cy='200' r='400' fill='%230ea5e9' fill-opacity='.07'/%3E%3Ccircle cx='200' cy='700' r='300' fill='%236366f1' fill-opacity='.07'/%3E%3Ccircle cx='1200' cy='600' r='250' fill='%230284c7' fill-opacity='.05'/%3E%3C/svg%3E")
    center / cover no-repeat;
  will-change: transform;
}

/* Animated grid overlay */
.hero-parallax::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14,165,233,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,165,233,.06) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(15,23,42,.75) 0%,
    rgba(15,23,42,.45) 60%,
    rgba(22,78,99,.5) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-inline: 1.5rem;
  max-width: 800px;
  animation: fadeUp .9s ease both;
}

.hero-eyebrow {
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 1.2rem;
  opacity: .9;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -.02em;
}
.hero-title span {
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.8);
  max-width: 580px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 30px; height: 50px;
  border: 2px solid rgba(255,255,255,.4);
  border-radius: 15px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 6px;
}
.scroll-indicator span {
  display: block;
  width: 4px; height: 10px;
  background: var(--clr-primary);
  border-radius: 2px;
  animation: scrollDot 1.8s ease infinite;
}

@keyframes scrollDot {
  0%   { transform: translateY(0);  opacity: 1; }
  80%  { transform: translateY(16px); opacity: 0; }
  100% { transform: translateY(0);  opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   STATS STRIP
   ========================================================= */
.stats-strip {
  background: var(--clr-dark-mid);
  padding: 3.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat {
  color: var(--clr-white);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--clr-primary);
}
.stat-suffix {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--clr-primary);
}

.stat p {
  font-size: .9rem;
  color: var(--clr-muted);
  margin-top: .35rem;
}

/* =========================================================
   SERVICES
   ========================================================= */
.services {
  position: relative;
  background: var(--clr-light);
  overflow: hidden;
}

.parallax-bg {
  position: absolute;
  inset: -30% 0;
  pointer-events: none;
  will-change: transform;
}

.services-parallax {
  background:
    radial-gradient(ellipse 80% 60% at 80% 50%, rgba(14,165,233,.08) 0%, transparent 70%),
    radial-gradient(ellipse 60% 80% at 10% 80%, rgba(99,102,241,.07) 0%, transparent 70%);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.service-card {
  position: relative;
  background: var(--clr-white);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid rgba(0,0,0,.06);
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.service-card:hover::before { opacity: 1; }

.service-card.featured {
  border: 2px solid var(--clr-primary);
  box-shadow: 0 4px 30px rgba(14,165,233,.2);
}
.service-card.featured::before { opacity: 1; }

.service-badge {
  position: absolute;
  top: 1rem; right: 1rem;
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .25rem .65rem;
  border-radius: 20px;
}

.service-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-white);
  font-size: 1.3rem;
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-dark);
  margin-bottom: .75rem;
}

.service-card p {
  font-size: .9rem;
  color: var(--clr-dark-soft);
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.service-list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--clr-dark-soft);
}
.service-list li i {
  color: var(--clr-primary);
  font-size: .75rem;
  flex-shrink: 0;
}

/* =========================================================
   ABOUT (PARALLAX HERO-STYLE)
   ========================================================= */
.about {
  position: relative;
  overflow: hidden;
}

.about-parallax {
  background:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 1440 800' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3ClinearGradient id='g2' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop offset='0' stop-color='%231e293b'/%3E%3Cstop offset='1' stop-color='%230f172a'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='1440' height='800' fill='url(%23g2)'/%3E%3Ccircle cx='300' cy='200' r='350' fill='%230ea5e9' fill-opacity='.06'/%3E%3Ccircle cx='1100' cy='600' r='280' fill='%236366f1' fill-opacity='.08'/%3E%3C/svg%3E")
    center / cover no-repeat;
}

.about-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,.88) 0%, rgba(30,41,59,.82) 100%);
  z-index: 1;
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: center;
  z-index: 2;
}

.about-image-wrap { position: relative; }

.about-image-box {
  position: relative;
  display: inline-block;
}

.about-image-placeholder {
  width: 340px;
  height: 420px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--clr-dark-mid), var(--clr-dark-soft));
  border: 2px solid rgba(14,165,233,.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.2);
  font-size: 7rem;
  overflow: hidden;
}

.about-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--clr-primary);
  color: var(--clr-white);
  padding: .85rem 1.2rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .85rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(14,165,233,.4);
  white-space: nowrap;
}
.about-badge i { font-size: 1.1rem; }

.about-content {
  color: var(--clr-white);
}

.about-content .eyebrow { margin-bottom: .75rem; }

.about-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  color: var(--clr-white);
}

.about-content > p {
  color: rgba(255,255,255,.75);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  margin: 2rem 0 2.5rem;
}

.value {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.value > i {
  width: 42px; height: 42px;
  background: rgba(14,165,233,.15);
  border: 1px solid rgba(14,165,233,.3);
  border-radius: var(--radius-sm);
  color: var(--clr-primary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.value h4 {
  font-size: .95rem;
  font-weight: 600;
  color: var(--clr-white);
  margin-bottom: .2rem;
}
.value p {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  line-height: 1.5;
}

/* =========================================================
   TESTIMONIALS
   ========================================================= */
.testimonials {
  background: var(--clr-white);
  padding-block: var(--section-py);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.testimonial-card {
  background: var(--clr-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid rgba(0,0,0,.06);
  transition: transform var(--transition), box-shadow var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.stars {
  color: #f59e0b;
  font-size: .85rem;
  margin-bottom: 1rem;
  display: flex;
  gap: 2px;
}

.testimonial-card > p {
  font-size: .95rem;
  color: var(--clr-dark-soft);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: .85rem;
}

.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: var(--clr-white);
  font-size: .8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.testimonial-author strong {
  display: block;
  font-size: .9rem;
  color: var(--clr-dark);
}
.testimonial-author span {
  font-size: .8rem;
  color: var(--clr-muted);
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact {
  background: var(--clr-dark-mid);
  overflow: hidden;
}

.contact .section-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
  align-items: start;
}

.contact-info .eyebrow { margin-bottom: .75rem; }

.contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 2.8vw, 2.2rem);
  font-weight: 700;
  color: var(--clr-white);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.contact-info > p {
  color: rgba(255,255,255,.65);
  font-size: .975rem;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 44px; height: 44px;
  background: rgba(14,165,233,.12);
  border: 1px solid rgba(14,165,233,.25);
  border-radius: var(--radius-sm);
  color: var(--clr-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  color: var(--clr-white);
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: .2rem;
}

.contact-item a,
.contact-item span {
  font-size: .9rem;
  color: rgba(255,255,255,.6);
}
.contact-item a:hover { color: var(--clr-primary); }

/* --- Form --- */
.contact-form-wrap {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
}

.contact-form h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-dark);
  margin-bottom: 1.75rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1.1rem;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-dark-soft);
}

.required { color: #ef4444; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .7rem 1rem;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--clr-dark);
  background: var(--clr-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239,68,68,.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group select { cursor: pointer; }

.form-error {
  font-size: .78rem;
  color: #ef4444;
  min-height: 1em;
}

.btn-submit {
  width: 100%;
  justify-content: center;
  padding: .9rem 2rem;
  font-size: 1rem;
  margin-top: .5rem;
  position: relative;
  overflow: hidden;
}

.form-success {
  display: none;
  align-items: center;
  gap: .75rem;
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: var(--radius-sm);
  color: #166534;
  font-size: .9rem;
  font-weight: 500;
}
.form-success i { font-size: 1.3rem; color: #22c55e; }
.form-success.visible { display: flex; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--clr-dark);
  padding-top: 4rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .nav-logo {
  margin-bottom: .85rem;
}
.footer-brand > p {
  font-size: .9rem;
  color: var(--clr-muted);
  max-width: 240px;
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.social-links {
  display: flex;
  gap: .75rem;
}
.social-links a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
  color: var(--clr-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.social-links a:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
  transform: translateY(-2px);
}

.footer-links h4 {
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: 1.2rem;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: .65rem;
}
.footer-links a,
.footer-links span {
  font-size: .88rem;
  color: var(--clr-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--clr-primary); }

.footer-bottom {
  padding: 1.5rem 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer-bottom p {
  font-size: .82rem;
  color: var(--clr-muted);
}
.footer-legal a {
  color: var(--clr-muted);
  font-size: .82rem;
}
.footer-legal a:hover { color: var(--clr-primary); }

/* =========================================================
   BACK TO TOP
   ========================================================= */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
  z-index: 999;
  box-shadow: 0 4px 16px rgba(14,165,233,.4);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--clr-primary-d);
  color: var(--clr-white);
  transform: translateY(-2px);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .about-inner { gap: 3rem; }
  .about-image-placeholder { width: 280px; height: 360px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  :root { --section-py: 4rem; }

  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 70%; max-width: 300px;
    height: 100vh;
    background: var(--clr-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    transition: right var(--transition);
    box-shadow: -8px 0 30px rgba(0,0,0,.3);
  }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: 1.05rem; }

  .hamburger { display: flex; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  .services-grid { grid-template-columns: 1fr; }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .about-image-wrap { display: flex; justify-content: center; }
  .about-image-placeholder { width: 240px; height: 300px; font-size: 5rem; }
  .about-badge { right: 0; }
  .value { text-align: left; }

  .testimonials-grid { grid-template-columns: 1fr; }

  .contact .section-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .contact-form-wrap { padding: 1.75rem 1.25rem; }
}

/* =========================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }