/*
Theme Name: Oxin Studio
Theme URI: https://oxinstudio.com
Author: Oxin Studio
Author URI: https://oxinstudio.com
Description: Corporate Software Development theme for Oxin Studio — featuring app development, web solutions, and digital services.
Version: 1.1.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: oxinstudio
Tags: corporate, technology, software, responsive, custom-menu, custom-logo
*/

/* =========================================
   CSS CUSTOM PROPERTIES — BRAND SYSTEM
   ========================================= */
:root {
  /* Brand Colors */
  --color-primary:     #0A2551;   /* Navy — primary brand */
  --color-blue:        #1C6DD0;   /* Blue — links & buttons */
  --color-aqua:        #00C2C7;   /* Aqua — accent */
  --color-gray-light:  #B0BEC5;   /* Light gray */
  --color-gray-dark:   #37474F;   /* Dark gray / text */
  --color-white:       #FFFFFF;
  --color-bg:          #F5F7FA;   /* Page background */
  --color-bg-dark:     #071B3E;   /* Darkened navy for hero */

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Lato', sans-serif;

  /* Sizing */
  --container:    1200px;
  --radius:       8px;
  --radius-lg:    16px;
  --shadow:       0 4px 24px rgba(10, 37, 81, 0.10);
  --shadow-hover: 0 8px 40px rgba(10, 37, 81, 0.18);

  /* Transitions */
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-gray-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-aqua);
}

ul, ol {
  list-style: none;
}

/* =========================================
   TYPOGRAPHY
   ========================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.2rem; }

p { margin-bottom: 1rem; }

.lead {
  font-size: 1.2rem;
  color: var(--color-gray-dark);
  opacity: 0.85;
}

/* =========================================
   LAYOUT
   ========================================= */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

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

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header .overline {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-aqua);
  margin-bottom: 12px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  max-width: 580px;
  margin: 0 auto;
  color: var(--color-gray-dark);
  opacity: 0.75;
}

/* Grid helpers */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 14px 32px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}

.btn-primary:hover {
  background: #1558b0;
  border-color: #1558b0;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(28, 109, 208, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.6);
}

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

.btn-aqua {
  background: var(--color-aqua);
  color: var(--color-primary);
  border-color: var(--color-aqua);
}

.btn-aqua:hover {
  background: #00adb2;
  border-color: #00adb2;
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* =========================================
   HEADER / NAVIGATION
   ========================================= */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.scrolled {
  background: var(--color-primary);
  box-shadow: 0 2px 20px rgba(10, 37, 81, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.site-logo img {
  height: 48px;
  width: auto;
}

.site-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-white);
  line-height: 1.1;
}

.site-logo-text span {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-aqua);
}

/* Navigation */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu li a {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item a {
  color: var(--color-aqua);
  background: rgba(255,255,255,0.08);
}

.nav-cta a {
  background: var(--color-aqua) !important;
  color: var(--color-primary) !important;
  padding: 10px 22px !important;
  border-radius: var(--radius) !important;
}

.nav-cta a:hover {
  background: #00adb2 !important;
  transform: translateY(-1px);
}

/* ── Dropdown Submenus ─────────────────────────────────────────────────── */

/* Every nav item needs relative positioning as the anchor for its submenu */
.nav-menu li {
  position: relative;
}

/* Sub-menu: hidden by default, floated below its parent */
.nav-menu .sub-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 210px;
  background: var(--color-primary);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(10, 37, 81, 0.28);
  padding: 8px 0;
  z-index: 9999;
  border-top: 2px solid var(--color-aqua);
  /* Smooth reveal */
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}

/* Show on hover — use flex so items stack vertically */
.nav-menu li:hover > .sub-menu,
.nav-menu li:focus-within > .sub-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Submenu items */
.nav-menu .sub-menu li {
  width: 100%;
  position: relative;
}

.nav-menu .sub-menu li a {
  display: block;
  padding: 10px 20px;
  border-radius: 0;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.80);
  white-space: nowrap;
  transition: all var(--transition);
}

.nav-menu .sub-menu li a:hover,
.nav-menu .sub-menu li.current-menu-item a {
  color: var(--color-aqua);
  background: rgba(255, 255, 255, 0.08);
  padding-left: 26px;   /* subtle indent on hover */
}

/* Dropdown arrow on parent items */
.nav-menu li.menu-item-has-children > a::after {
  content: '▾';
  display: inline-block;
  margin-left: 5px;
  font-size: 0.72rem;
  opacity: 0.65;
  transition: transform var(--transition);
}

.nav-menu li.menu-item-has-children:hover > a::after {
  transform: rotate(180deg);
  opacity: 1;
}

/* Nested sub-submenus (3rd level) — slide out to the right */
.nav-menu .sub-menu .sub-menu {
  top: -8px;
  left: 100%;
  border-top: none;
  border-left: 2px solid var(--color-aqua);
}

.nav-menu .sub-menu li.menu-item-has-children > a::after {
  content: '›';
  float: right;
  font-size: 1rem;
  line-height: 1;
}

/* ── Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary) 50%, #0d3a7a 100%);
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, rgba(0,194,199,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(28,109,208,0.15) 0%, transparent 50%);
}

/* Decorative grid overlay */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-text {}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 194, 199, 0.15);
  border: 1px solid rgba(0, 194, 199, 0.35);
  color: var(--color-aqua);
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-aqua);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero h1 .highlight {
  color: var(--color-aqua);
  position: relative;
}

.hero-description {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 40px;
  max-width: 520px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.12);
}

.hero-stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-aqua);
  display: block;
}

.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card {
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 440px;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.hero-card-icon {
  width: 44px;
  height: 44px;
  background: var(--color-aqua);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.hero-card-title {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-white);
  font-size: 1rem;
}

.hero-card-sub {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
}

.hero-service-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-service-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
}

.hero-service-name {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}

.hero-service-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(0,194,199,0.2);
  color: var(--color-aqua);
}

/* =========================================
   SERVICES SECTION
   ========================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid rgba(10,37,81,0.08);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-aqua));
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, rgba(28,109,208,0.1), rgba(0,194,199,0.1));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 24px;
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-blue), var(--color-aqua));
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-gray-dark);
  opacity: 0.8;
  margin-bottom: 0;
  line-height: 1.65;
}

/* =========================================
   STATS / COUNTER SECTION
   ========================================= */
.stats-section {
  background: linear-gradient(135deg, var(--color-primary), #0d3a7a);
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 20px;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-aqua);
  display: block;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  font-weight: 400;
}

/* =========================================
   WHY CHOOSE US
   ========================================= */
.why-us-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-us-image {
  position: relative;
}

.why-us-image-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-us-image-placeholder {
  color: rgba(255,255,255,0.3);
  font-size: 5rem;
}

.why-us-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--color-aqua);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  border-radius: var(--radius);
  padding: 20px 28px;
  text-align: center;
  box-shadow: var(--shadow);
}

.why-us-badge .big {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.why-us-badge .small {
  font-size: 0.75rem;
  opacity: 0.8;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.why-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.why-item-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(28,109,208,0.12), rgba(0,194,199,0.12));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-top: 2px;
}

.why-item-text h4 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.why-item-text p {
  font-size: 0.88rem;
  color: var(--color-gray-dark);
  opacity: 0.75;
  margin: 0;
}

/* =========================================
   PORTFOLIO
   ========================================= */
.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 22px;
  border: 2px solid rgba(10,37,81,0.15);
  border-radius: 100px;
  background: transparent;
  color: var(--color-gray-dark);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.portfolio-image {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.3);
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,37,81,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay a {
  background: var(--color-aqua);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius);
}

.portfolio-info {
  padding: 24px;
}

.portfolio-category {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-aqua);
  margin-bottom: 8px;
}

.portfolio-info h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.portfolio-info p {
  font-size: 0.85rem;
  color: var(--color-gray-dark);
  opacity: 0.7;
  margin: 0;
}

/* =========================================
   PROCESS SECTION
   ========================================= */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(12.5% + 16px);
  right: calc(12.5% + 16px);
  height: 2px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-aqua));
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 64px;
  height: 64px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 auto 24px;
  border: 3px solid var(--color-aqua);
  position: relative;
}

.step-number::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px dashed rgba(0,194,199,0.4);
}

.process-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.85rem;
  color: var(--color-gray-dark);
  opacity: 0.75;
  margin: 0;
}

/* =========================================
   TEAM
   ========================================= */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.team-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.team-photo {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: rgba(255,255,255,0.3);
  position: relative;
  overflow: hidden;
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-info {
  padding: 24px 20px;
}

.team-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.team-role {
  font-size: 0.8rem;
  color: var(--color-aqua);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.team-social {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.team-social a {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--color-gray-dark);
  transition: all var(--transition);
}

.team-social a:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* =========================================
   CTA BANNER
   ========================================= */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  padding: 96px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(0,194,199,0.08);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -5%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* =========================================
   TESTIMONIALS
   ========================================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  right: 28px;
  font-size: 5rem;
  font-family: Georgia, serif;
  color: var(--color-aqua);
  opacity: 0.25;
  line-height: 1;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-gray-dark);
  line-height: 1.7;
  margin-bottom: 28px;
  opacity: 0.85;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  flex-shrink: 0;
}

.testimonial-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.testimonial-company {
  font-size: 0.78rem;
  color: var(--color-gray-dark);
  opacity: 0.6;
}

.stars {
  color: #f59e0b;
  font-size: 0.85rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

/* =========================================
   CONTACT
   ========================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--color-gray-dark);
  opacity: 0.8;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, rgba(28,109,208,0.12), rgba(0,194,199,0.12));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-aqua);
  margin-bottom: 2px;
}

.contact-item-value {
  font-size: 0.95rem;
  color: var(--color-gray-dark);
}

/* Contact Form */
.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid rgba(10,37,81,0.12);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-gray-dark);
  background: var(--color-bg);
  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(--color-blue);
  box-shadow: 0 0 0 4px rgba(28,109,208,0.12);
  background: var(--color-white);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  text-align: center;
  margin-top: 8px;
}

.form-submit .btn {
  width: 100%;
  justify-content: center;
  font-size: 1rem;
  padding: 16px;
}

/* =========================================
   FOOTER
   ========================================= */
#site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
}

.footer-main {
  padding: 80px 0 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .site-logo {
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 280px;
  margin-bottom: 24px;
  color: rgba(255,255,255,0.6);
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--color-aqua);
  color: var(--color-primary);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-aqua);
}

.footer-bottom {
  padding: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  margin: 0;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
}

.footer-bottom-links a:hover {
  color: var(--color-aqua);
}

/* =========================================
   PAGE HERO (inner pages)
   ========================================= */
.page-hero {
  background: linear-gradient(135deg, var(--color-bg-dark), var(--color-primary));
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero-content {
  position: relative;
  z-index: 2;
}

.page-hero .overline {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-aqua);
  margin-bottom: 16px;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: 16px;
}

.page-hero p {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  max-width: 580px;
  margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  position: relative;
  z-index: 2;
}

.breadcrumb a {
  color: rgba(255,255,255,0.5);
}

.breadcrumb a:hover { color: var(--color-aqua); }

.breadcrumb .sep { opacity: 0.4; }

.breadcrumb .current { color: var(--color-aqua); }

/* =========================================
   ABOUT PAGE SPECIFICS
   ========================================= */
.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.value-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.value-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.value-card p {
  font-size: 0.87rem;
  opacity: 0.75;
  margin: 0;
}

/* =========================================
   SCROLL TO TOP
   ========================================= */
#scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--color-blue);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition);
  z-index: 999;
  box-shadow: 0 4px 16px rgba(28,109,208,0.4);
}

#scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

#scroll-top:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

/* =========================================
   UTILITIES
   ========================================= */
.text-center { text-align: center; }
.text-aqua    { color: var(--color-aqua); }
.text-blue    { color: var(--color-blue); }
.text-white   { color: var(--color-white); }
.mt-sm  { margin-top: 16px; }
.mt-md  { margin-top: 32px; }
.mt-lg  { margin-top: 64px; }
.mb-0   { margin-bottom: 0; }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .team-grid     { grid-template-columns: repeat(2, 1fr); }
  .footer-main   { grid-template-columns: 1fr 1fr; gap: 36px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
}

@media (max-width: 900px) {
  .hero-content    { grid-template-columns: 1fr; }
  .hero-visual     { display: none; }
  .why-us-grid     { grid-template-columns: 1fr; }
  .contact-grid    { grid-template-columns: 1fr; }
  .about-intro-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .services-grid        { grid-template-columns: 1fr; }
  .portfolio-grid       { grid-template-columns: 1fr; }
  .testimonials-grid    { grid-template-columns: 1fr; }
  .values-grid          { grid-template-columns: 1fr; }
  .nav-menu             { display: none; flex-direction: column; position: fixed;
                          top: 80px; left: 0; right: 0; background: var(--color-primary);
                          padding: 24px; gap: 4px; overflow-y: auto; max-height: calc(100vh - 80px); }
  .nav-menu.open        { display: flex; }
  .nav-toggle           { display: flex; }

  /* Mobile submenus: hidden by default, shown when .open is toggled on the <li> */
  .nav-menu .sub-menu {
    position: static;
    box-shadow: none;
    border-top: none;
    border-left: 2px solid var(--color-aqua);
    margin-left: 16px;
    padding: 4px 0;
    display: none;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .nav-menu li.open > .sub-menu  { display: block; }
  .nav-menu li:hover > .sub-menu { display: none; } /* disable hover on mobile */

  /* Tap target for expand arrow on mobile */
  .nav-menu li.menu-item-has-children > a {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .form-row             { grid-template-columns: 1fr; }
  .footer-main          { grid-template-columns: 1fr; }
  .footer-bottom        { flex-direction: column; text-align: center; }
  .hero-stats           { flex-wrap: wrap; gap: 24px; }
  .contact-form         { padding: 28px; }
  .team-grid            { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stats-grid   { grid-template-columns: 1fr 1fr; }
  .team-grid    { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
}