/* ================================================================
   STYLE.CSS  –  Alex Harper Portfolio Demo
   Dark-mode, electric-blue accent, Apple-esque minimalism
   ================================================================

   TABLE OF CONTENTS
   -----------------
   01. CSS Custom Properties (Design Tokens)
   02. Reset & Base
   03. Typography Scale
   04. Utility Classes
   05. Layout – Container & Grid helpers
   06. Scroll-reveal Animation Classes
   07. Navigation Header
   08. Hero Section
   09. About / Trust Section
   10. Services Section
   11. Portfolio Section
   12. Testimonials Section
   13. CTA Band
   14. Contact Section
   15. Footer
   16. Back-to-Top Button
   17. Responsive – Tablet (≤1024px)
   18. Responsive – Mobile (≤768px)
   19. Responsive – Small Mobile (≤480px)
   ================================================================ */


/* ================================================================
   01 – CSS CUSTOM PROPERTIES (Design Tokens)
   All colours, radii, shadows and transitions defined here so any
   future re-theme requires changes in ONE place only.
   ================================================================ */
:root {
  /* --- Colours --- */
  --bg-base:        #09090f;   /* page background */
  --bg-surface:     #111118;   /* raised surface (nav, cards) */
  --bg-elevated:    #1a1a26;   /* more elevated cards */
  --bg-border:      #252535;   /* subtle borders */

  --accent:         #0ea5e9;   /* electric blue – primary accent */
  --accent-dark:    #0284c7;   /* darker shade for hover */
  --accent-glow:    rgba(14, 165, 233, 0.18);
  --accent-glow-lg: rgba(14, 165, 233, 0.10);

  --text-primary:   #f1f5f9;   /* headings, important text */
  --text-secondary: #94a3b8;   /* body copy */
  --text-muted:     #64748b;   /* labels, captions */
  --text-inverse:   #09090f;   /* text on light/accent backgrounds */

  --green:          #22c55e;   /* success state */
  --red:            #f43f5e;   /* error state */
  --whatsapp:       #25D366;   /* WhatsApp brand green */
  --whatsapp-dark:  #128C7E;

  /* --- Typography --- */
  --font-sans:      'Inter', -apple-system, BlinkMacSystemFont,
                    'Segoe UI', Helvetica, Arial, sans-serif;
  --line-height:    1.7;

  /* --- Spacing --- */
  --section-gap:    7rem;      /* vertical padding between sections */

  /* --- Layout --- */
  --container:      1180px;    /* max content width */

  /* --- Radii --- */
  --radius-sm:      8px;
  --radius-md:      14px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --radius-pill:    999px;

  /* --- Shadows --- */
  --shadow-card:    0 4px 24px rgba(0,0,0,0.45);
  --shadow-glow:    0 0 40px var(--accent-glow);
  --shadow-hero:    0 24px 80px rgba(0,0,0,0.7);

  /* --- Transitions --- */
  --ease:           cubic-bezier(0.4, 0, 0.2, 1);
  --transition:     0.28s var(--ease);
}


/* ================================================================
   02 – RESET & BASE
   Modern minimal reset; sensible box-sizing on everything.
   ================================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin:     0;
  padding:    0;
}

html {
  font-size:              16px;
  scroll-behavior:        smooth;
  -webkit-text-size-adjust: 100%;
  /* Custom scrollbar for Chrome/Edge */
  scrollbar-width: thin;
  scrollbar-color: var(--bg-border) var(--bg-base);
}

::-webkit-scrollbar              { width: 6px; }
::-webkit-scrollbar-track        { background: var(--bg-base); }
::-webkit-scrollbar-thumb        { background: var(--bg-border); border-radius: var(--radius-pill); }
::-webkit-scrollbar-thumb:hover  { background: var(--accent); }

body {
  font-family:        var(--font-sans);
  font-size:          1rem;
  font-weight:        400;
  line-height:        var(--line-height);
  color:              var(--text-secondary);
  background-color:   var(--bg-base);
  overflow-x:         hidden;
  -webkit-font-smoothing:  antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  /* Accessible focus ring */
  outline:        2px solid var(--accent);
  outline-offset: 3px;
  border-radius:  var(--radius-sm);
}

ul,
ol { list-style: none; }

button {
  cursor:     pointer;
  border:     none;
  background: none;
  font:       inherit;
}


/* ================================================================
   03 – TYPOGRAPHY SCALE
   ================================================================ */
h1, h2, h3, h4 {
  color:       var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4rem);   }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem);  }
h4 { font-size: 1rem; font-weight: 600; }

p  { line-height: var(--line-height); }

/* Gradient text helper */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #38bdf8 60%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip:         text;
}


/* ================================================================
   04 – UTILITY CLASSES
   ================================================================ */

/* Text alignment */
.text-center { text-align: center; }

/* Section label – pill above section title */
.section-label {
  display:          inline-block;
  font-size:        0.75rem;
  font-weight:      600;
  letter-spacing:   0.12em;
  text-transform:   uppercase;
  color:            var(--accent);
  background:       var(--accent-glow);
  border:           1px solid rgba(14,165,233,0.25);
  padding:          0.35rem 0.9rem;
  border-radius:    var(--radius-pill);
  margin-bottom:    1.25rem;
}

/* Section title & sub used across multiple sections */
.section-title {
  margin-bottom: 1rem;
}

.section-sub {
  font-size:      1.05rem;
  color:          var(--text-secondary);
  max-width:      600px;
  margin-inline:  auto;
  margin-bottom:  3.5rem;
}

/* Standard section vertical padding */
.section-pad {
  padding-block: var(--section-gap);
}


/* ================================================================
   05 – LAYOUT: CONTAINER
   ================================================================ */
.container {
  width:          100%;
  max-width:      var(--container);
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  margin-inline:  auto;
}


/* ================================================================
   06 – SCROLL-REVEAL ANIMATION
   Elements with .reveal start hidden; JS adds .revealed to show them.
   ================================================================ */
.reveal {
  opacity:    0;
  transform:  translateY(32px);
  transition: opacity 0.65s var(--ease),
              transform 0.65s var(--ease);
}

.reveal.revealed {
  opacity:   1;
  transform: translateY(0);
}

/* Stagger children of any .reveal-stagger container */
.reveal-stagger > * {
  opacity:   0;
  transform: translateY(24px);
  transition: opacity 0.55s var(--ease),
              transform 0.55s var(--ease);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.0s; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger.revealed > * { opacity: 1; transform: translateY(0); }


/* ================================================================
   07 – NAVIGATION HEADER
   ================================================================ */

/* Base nav wrapper */
.nav-header {
  position:         fixed;
  top:              0;
  left:             0;
  right:            0;
  z-index:          1000;
  /* Start transparent; JS adds .nav-scrolled */
  background:       transparent;
  border-bottom:    1px solid transparent;
  transition:       background var(--transition),
                    border-color var(--transition),
                    backdrop-filter var(--transition);
}

/* Scrolled state – glass morphism effect */
.nav-header.nav-scrolled {
  background:    rgba(9, 9, 15, 0.80);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-color:  var(--bg-border);
}

.nav {
  display:         flex;
  align-items:     center;
  justify-content: space-between;
  gap:             2rem;
  height:          70px;
}

/* Logo */
.nav-logo {
  display:     flex;
  align-items: center;
  gap:         0.6rem;
  flex-shrink: 0;
}

.logo-mark {
  width:           36px;
  height:          36px;
  border-radius:   10px;
  background:      linear-gradient(135deg, var(--accent), #818cf8);
  color:           #fff;
  font-weight:     800;
  font-size:       1.1rem;
  display:         grid;
  place-items:     center;
  flex-shrink:     0;
}

.logo-text {
  font-weight:    700;
  font-size:      1.05rem;
  color:          var(--text-primary);
  letter-spacing: -0.02em;
}

/* Desktop nav links */
.nav-links {
  display:     flex;
  align-items: center;
  gap:         0.25rem;
}

.nav-link {
  padding:        0.45rem 0.85rem;
  border-radius:  var(--radius-sm);
  font-size:      0.9rem;
  font-weight:    500;
  color:          var(--text-secondary);
  transition:     color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color:       var(--text-primary);
  background:  var(--bg-elevated);
}

/* Nav CTA button */
.nav-cta {
  flex-shrink: 0;
}

/* Hamburger button (hidden on desktop) */
.hamburger {
  display:         none;
  flex-direction:  column;
  justify-content: center;
  align-items:     center;
  gap:             5px;
  width:           38px;
  height:          38px;
  border-radius:   var(--radius-sm);
  background:      var(--bg-elevated);
  flex-shrink:     0;
  overflow:        hidden;
  transition:      background var(--transition);
}

.hamburger:hover { background: var(--bg-border); }

.bar {
  width:           22px;
  height:          2px;
  background:      var(--text-primary);
  border-radius:   var(--radius-pill);
  transition:      transform var(--transition), opacity var(--transition);
  pointer-events:  none;
}

/* Animated hamburger → close (X) */
.hamburger.open .bar:nth-child(1) { transform: translateY(7px) rotate(45deg);  }
.hamburger.open .bar:nth-child(2) { opacity:   0; transform: scaleX(0);         }
.hamburger.open .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav flyout */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-cta   { display: none; }

  .nav-links {
    position:      fixed;
    top:           70px;
    left:          0;
    right:         0;
    background:    rgba(9,9,15,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--bg-border);
    flex-direction: column;
    align-items:   stretch;
    gap:           0;
    padding:       1rem 1.5rem 1.5rem;
    /* Hidden by default */
    clip-path:      inset(0 0 100% 0);
    opacity:        0;
    pointer-events: none;
    transition:     clip-path 0.4s var(--ease), opacity 0.4s var(--ease);
  }

  .nav-links.open {
    clip-path:      inset(0 0 0% 0);
    opacity:        1;
    pointer-events: auto;
  }

  .nav-link {
    padding:     0.9rem 0.5rem;
    font-size:   1.05rem;
    border-bottom: 1px solid var(--bg-border);
  }

  .nav-links li:last-child .nav-link { border-bottom: none; }
}


/* ================================================================
   08 – BUTTON SYSTEM
   Three variants: .btn-primary | .btn-ghost | .btn-white
   ================================================================ */
.btn {
  display:          inline-flex;
  align-items:      center;
  justify-content:  center;
  gap:              0.5rem;
  padding:          0.8rem 1.75rem;
  border-radius:    var(--radius-pill);
  font-size:        0.95rem;
  font-weight:      600;
  letter-spacing:   0.01em;
  transition:       background var(--transition),
                    color var(--transition),
                    border-color var(--transition),
                    transform var(--transition),
                    box-shadow var(--transition);
  white-space:      nowrap;
  cursor:           pointer;
  border:           2px solid transparent;
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0);    }

/* Primary – solid blue */
.btn-primary {
  background:   var(--accent);
  color:        #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background:   var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow:   0 8px 24px var(--accent-glow);
}

/* Ghost – outlined */
.btn-ghost {
  background:   transparent;
  color:        var(--text-primary);
  border-color: var(--bg-border);
}

.btn-ghost:hover {
  background:   var(--bg-elevated);
  border-color: var(--text-muted);
}

/* White – used on coloured backgrounds */
.btn-white {
  background:   var(--text-primary);
  color:        var(--text-inverse);
  border-color: var(--text-primary);
}

.btn-white:hover {
  background:   #fff;
  border-color: #fff;
  box-shadow:   0 8px 24px rgba(241,245,249,0.2);
}

/* Full-width modifier */
.btn-full {
  width: 100%;
}


/* ================================================================
   09 – HERO SECTION
   ================================================================ */
.hero {
  position:       relative;
  min-height:     100svh;
  display:        flex;
  align-items:    center;
  padding-block:  calc(70px + 4rem) 5rem; /* offset for fixed nav */
  overflow:       hidden;
}

/* Two-column hero layout */
.hero-inner {
  display:         grid;
  grid-template-columns: 1fr 1fr;
  align-items:     center;
  gap:             4rem;
  position:        relative;
  z-index:         2;
}

/* --- Left Column (text) --- */
.hero-text {
  display:        flex;
  flex-direction: column;
  align-items:    flex-start;
  gap:            1.5rem;
  /* Animate in on load */
  animation: heroFadeUp 0.9s var(--ease) both;
}

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

/* "Available" badge */
.hero-badge {
  display:       flex;
  align-items:   center;
  gap:           0.5rem;
  font-size:     0.8rem;
  font-weight:   600;
  color:         var(--accent);
  background:    var(--accent-glow);
  border:        1px solid rgba(14,165,233,0.3);
  padding:       0.4rem 1rem;
  border-radius: var(--radius-pill);
}

.badge-dot {
  width:            8px;
  height:           8px;
  border-radius:    50%;
  background:       var(--accent);
  /* Pulse animation */
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0   rgba(14,165,233,0.6); }
  50%       { box-shadow: 0 0 0 8px rgba(14,165,233,0);   }
}

.hero-headline {
  letter-spacing: -0.03em;
}

.hero-sub {
  font-size:   1.1rem;
  max-width:   440px;
  line-height: 1.75;
}

.hero-ctas {
  display:     flex;
  align-items: center;
  gap:         1rem;
  flex-wrap:   wrap;
}

/* Social proof row */
.hero-proof {
  display:     flex;
  align-items: center;
  gap:         0.9rem;
  padding-top: 0.5rem;
}

.proof-avatars {
  display: flex;
}

.avatar {
  width:        38px;
  height:       38px;
  border-radius: 50%;
  border:       2px solid var(--bg-base);
  object-fit:   cover;
  margin-left:  -8px;
}

.proof-avatars .avatar:first-child { margin-left: 0; }

.proof-text {
  font-size: 0.88rem;
  color:     var(--text-muted);
}

.proof-text strong {
  color: var(--text-primary);
}

/* --- Right Column (visual) --- */
.hero-visual {
  position:   relative;
  display:    flex;
  justify-content: center;
  animation: heroFadeUp 0.9s var(--ease) 0.2s both;
}

.hero-card {
  position:      relative;
  width:         100%;
  max-width:     460px;
  border-radius: var(--radius-xl);
  overflow:      hidden;
  box-shadow:    var(--shadow-hero);
  border:        1px solid var(--bg-border);
  /* Subtle float animation */
  animation:     float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0);    }
  50%       { transform: translateY(-12px); }
}

.hero-img {
  width:       100%;
  display:     block;
  object-fit:  cover;
  aspect-ratio: 4/3;
}

/* Badge overlaid on hero card */
.hero-card-badge {
  position:       absolute;
  bottom:         1.25rem;
  left:           1.25rem;
  display:        flex;
  align-items:    center;
  gap:            0.5rem;
  background:     rgba(9,9,15,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color:          var(--green);
  padding:        0.5rem 1rem;
  border-radius:  var(--radius-pill);
  font-size:      0.82rem;
  font-weight:    600;
  border:         1px solid rgba(34,197,94,0.2);
}

/* Floating stat cards */
.float-stat {
  position:      absolute;
  background:    var(--bg-elevated);
  border:        1px solid var(--bg-border);
  border-radius: var(--radius-md);
  padding:       0.85rem 1.25rem;
  box-shadow:    var(--shadow-card);
  text-align:    center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.float-stat--tl { top: -1.5rem; left: -2rem; }
.float-stat--br { bottom: -1rem; right: -1.5rem; }

.stat-num {
  font-size:   1.5rem;
  font-weight: 800;
  color:       var(--text-primary);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.72rem;
  color:     var(--text-muted);
  margin-top: 0.2rem;
  white-space: nowrap;
}

/* Decorative background orbs */
.orb {
  position:      absolute;
  border-radius: 50%;
  filter:        blur(80px);
  pointer-events: none;
}

.orb-1 {
  width:      600px;
  height:     600px;
  background: radial-gradient(circle, rgba(14,165,233,0.12) 0%, transparent 70%);
  top:        -20%;
  right:      -15%;
}

.orb-2 {
  width:      400px;
  height:     400px;
  background: radial-gradient(circle, rgba(129,140,248,0.10) 0%, transparent 70%);
  bottom:     -10%;
  left:       -10%;
}


/* ================================================================
   10 – ABOUT / TRUST SECTION
   ================================================================ */
.about {
  background: var(--bg-surface);
}

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

.about-text { display: flex; flex-direction: column; }

.section-body {
  color:       var(--text-secondary);
  margin-top:  1.1rem;
  font-size:   1rem;
  max-width:   460px;
  line-height: 1.8;
}

/* Trust stat cards 2×2 grid */
.trust-grid {
  display:               grid;
  grid-template-columns: 1fr 1fr;
  gap:                   1.25rem;
}

.trust-card {
  background:    var(--bg-elevated);
  border:        1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding:       1.75rem 1.5rem;
  transition:    border-color var(--transition), transform var(--transition),
                 box-shadow var(--transition);
}

.trust-card:hover {
  border-color: var(--accent);
  transform:    translateY(-4px);
  box-shadow:   var(--shadow-glow);
}

.trust-icon {
  width:         44px;
  height:        44px;
  border-radius: var(--radius-sm);
  background:    var(--accent-glow);
  border:        1px solid rgba(14,165,233,0.2);
  display:       grid;
  place-items:   center;
  color:         var(--accent);
  margin-bottom: 1rem;
}

.trust-num {
  font-size:   2rem;
  font-weight: 800;
  color:       var(--text-primary);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.trust-desc {
  font-size: 0.85rem;
  color:     var(--text-muted);
}


/* ================================================================
   11 – SERVICES SECTION
   ================================================================ */
.services { background: var(--bg-base); }

.services-grid {
  display:               grid;
  grid-template-columns: repeat(3, 1fr);
  gap:                   1.5rem;
}

/* Service card base */
.service-card {
  position:          relative;
  background:        var(--bg-elevated);
  border:            1px solid var(--bg-border);
  border-radius:     var(--radius-lg);
  padding:           2.25rem 2rem;
  display:           flex;
  flex-direction:    column;
  gap:               1rem;
  overflow:          hidden;
  transition:        border-color var(--transition), transform var(--transition),
                     box-shadow var(--transition);
}

/* Shine pseudo-element on hover */
.service-card::before {
  content:    '';
  position:   absolute;
  inset:      0;
  background: linear-gradient(135deg,
              rgba(14,165,233,0.06) 0%,
              transparent 60%);
  opacity:    0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.service-card:hover {
  border-color: var(--accent);
  transform:    translateY(-6px);
  box-shadow:   0 20px 60px rgba(14,165,233,0.12);
}

.service-card:hover::before { opacity: 1; }

/* Featured / popular card */
.service-card--featured {
  border-color: var(--accent);
  box-shadow:   var(--shadow-glow);
}

.featured-badge {
  position:      absolute;
  top:           1.25rem;
  right:         1.25rem;
  background:    var(--accent);
  color:         #fff;
  font-size:     0.7rem;
  font-weight:   700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding:       0.25rem 0.65rem;
  border-radius: var(--radius-pill);
}

/* Icon wrapper */
.service-icon-wrap {
  width:         52px;
  height:        52px;
  border-radius: var(--radius-md);
  background:    var(--accent-glow);
  border:        1px solid rgba(14,165,233,0.2);
  display:       grid;
  place-items:   center;
  color:         var(--accent);
  flex-shrink:   0;
}

.service-title {
  font-size:   1.15rem;
  font-weight: 700;
  color:       var(--text-primary);
}

.service-desc {
  color:       var(--text-secondary);
  font-size:   0.92rem;
  line-height: 1.75;
  flex-grow:   1;
}

.service-list {
  display:   flex;
  flex-direction: column;
  gap:       0.5rem;
}

.service-list li {
  display:     flex;
  align-items: center;
  gap:         0.55rem;
  font-size:   0.88rem;
  color:       var(--text-muted);
}

/* Checkmark bullet using ::before */
.service-list li::before {
  content:         '';
  flex-shrink:     0;
  width:           6px;
  height:          6px;
  border-radius:   50%;
  background:      var(--accent);
}

/* "Learn more" link at card bottom */
.service-link {
  display:     inline-flex;
  align-items: center;
  gap:         0.35rem;
  font-size:   0.88rem;
  font-weight: 600;
  color:       var(--accent);
  margin-top:  0.5rem;
  transition:  gap var(--transition), opacity var(--transition);
}

.service-link:hover { gap: 0.6rem; }


/* ================================================================
   12 – PORTFOLIO SECTION
   ================================================================ */
.portfolio { background: var(--bg-surface); }

/* Masonry-esque grid */
.portfolio-grid {
  display:               grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows:    auto auto;
  gap:                   1.25rem;
}

/* Wide item spans all 3 columns on first "row" (spans 2 cols) */
.portfolio-item--wide {
  grid-column: span 2;
}

/* Portfolio card */
.portfolio-item {
  position:      relative;
  border-radius: var(--radius-lg);
  overflow:      hidden;
  cursor:        pointer;
  border:        1px solid var(--bg-border);
}

.portfolio-item img {
  width:       100%;
  height:      100%;
  object-fit:  cover;
  /* Min height for non-wide items */
  min-height:  240px;
  transition:  transform 0.55s var(--ease);
  display:     block;
}

.portfolio-item--wide img { min-height: 340px; }

/* Overlay –  hidden until hover */
.portfolio-overlay {
  position:       absolute;
  inset:          0;
  background:     linear-gradient(to top,
                  rgba(9,9,15,0.92) 0%,
                  rgba(9,9,15,0.4)  60%,
                  transparent       100%);
  display:        flex;
  flex-direction: column;
  justify-content: flex-end;
  padding:        1.75rem;
  opacity:        0;
  transform:      translateY(8px);
  transition:     opacity 0.35s var(--ease), transform 0.35s var(--ease);
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; transform: translateY(0); }
.portfolio-item:hover img                { transform: scale(1.06); }

.portfolio-tag {
  font-size:     0.72rem;
  font-weight:   600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color:         var(--accent);
  margin-bottom: 0.4rem;
}

.portfolio-title {
  font-size:   1.15rem;
  font-weight: 700;
  color:       var(--text-primary);
  margin-bottom: 0.85rem;
}

.portfolio-btn {
  display:       inline-flex;
  align-items:   center;
  width:         fit-content;
  background:    var(--accent);
  color:         #fff;
  padding:       0.5rem 1.2rem;
  border-radius: var(--radius-pill);
  font-size:     0.82rem;
  font-weight:   600;
  transition:    background var(--transition), transform var(--transition);
}

.portfolio-btn:hover {
  background: var(--accent-dark);
  transform:  translateX(3px);
}


/* ================================================================
   13 – TESTIMONIALS SECTION
   ================================================================ */
.testimonials { background: var(--bg-base); }

/* Scrollable track wrapper (enables JS slider on mobile) */
.testimonials-track-wrapper {
  overflow: hidden;
  width:    100%;
}

.testimonials-track {
  display:     grid;
  grid-template-columns: repeat(3, 1fr);
  gap:         1.5rem;
  transition:  transform 0.5s var(--ease);
}

/* Individual testimonial card */
.testimonial-card {
  background:    var(--bg-elevated);
  border:        1px solid var(--bg-border);
  border-radius: var(--radius-lg);
  padding:       2rem;
  display:       flex;
  flex-direction: column;
  gap:           1.25rem;
  transition:    border-color var(--transition), transform var(--transition),
                 box-shadow var(--transition);
}

.testimonial-card:hover {
  border-color: var(--accent);
  transform:    translateY(-4px);
  box-shadow:   var(--shadow-glow);
}

/* Stars */
.stars {
  font-size: 1.1rem;
  color:     #f59e0b; /* amber */
  letter-spacing: 3px;
}

/* Blockquote */
.testimonial-quote {
  font-size:   0.97rem;
  line-height: 1.8;
  color:       var(--text-secondary);
  font-style:  italic;
  flex-grow:   1;
}

.testimonial-quote::before { content: '\201C'; }
.testimonial-quote::after  { content: '\201D'; }

/* Author row */
.testimonial-author {
  display:     flex;
  align-items: center;
  gap:         0.85rem;
  font-style:  normal;
}

.author-avatar {
  width:         48px;
  height:        48px;
  border-radius: 50%;
  object-fit:    cover;
  border:        2px solid var(--bg-border);
  flex-shrink:   0;
}

.author-name {
  font-size:   0.95rem;
  font-weight: 700;
  color:       var(--text-primary);
  font-style:  normal;
  display:     block;
}

.author-role {
  font-size: 0.8rem;
  color:     var(--text-muted);
}

/* Slider dots */
.slider-dots {
  display:         flex;
  justify-content: center;
  gap:             0.6rem;
  margin-top:      2.5rem;
}

.dot {
  width:          10px;
  height:         10px;
  border-radius:  50%;
  background:     var(--bg-border);
  border:         none;
  cursor:         pointer;
  transition:     background var(--transition), transform var(--transition);
  padding:        0;
}

.dot.active,
.dot:hover {
  background:  var(--accent);
  transform:   scale(1.3);
}


/* ================================================================
   14 – CTA BAND
   ================================================================ */
.cta-band {
  position:   relative;
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 50%, #075985 100%);
  overflow:   hidden;
  padding-block: 5rem;
}

.cta-band-inner {
  display:         flex;
  align-items:     center;
  justify-content: space-between;
  gap:             2rem;
  position:        relative;
  z-index:         2;
  flex-wrap:       wrap;
}

.cta-band-title {
  font-size:   clamp(1.5rem, 3vw, 2.2rem);
  color:       #fff;
  margin-bottom: 0.5rem;
}

.cta-band-sub {
  color: rgba(255,255,255,0.75);
  font-size: 1rem;
}

.orb-cta {
  width:      500px;
  height:     500px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  right:      -10%;
  top:        -50%;
}


/* ================================================================
   15 – CONTACT SECTION
   ================================================================ */
.contact { background: var(--bg-surface); }

.contact-inner {
  display:       grid;
  grid-template-columns: 1fr 1.4fr;
  gap:           5rem;
  align-items:   start;
}

/* --- Left: info panel --- */
.contact-info-title {
  font-size:   1.5rem;
  font-weight: 700;
  color:       var(--text-primary);
  margin-bottom: 2rem;
}

.info-item {
  display:       flex;
  align-items:   flex-start;
  gap:           1rem;
  margin-bottom: 1.5rem;
}

.info-icon {
  width:         42px;
  height:        42px;
  border-radius: var(--radius-sm);
  background:    var(--accent-glow);
  border:        1px solid rgba(14,165,233,0.2);
  display:       grid;
  place-items:   center;
  color:         var(--accent);
  flex-shrink:   0;
}

.info-label {
  font-size:   0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color:       var(--text-muted);
  margin-bottom: 0.2rem;
}

.info-value {
  font-size:   0.95rem;
  color:       var(--text-secondary);
  font-weight: 500;
  transition:  color var(--transition);
}

a.info-value:hover { color: var(--accent); }

/* WhatsApp Button */
.whatsapp-btn {
  display:       inline-flex;
  align-items:   center;
  gap:           0.65rem;
  background:    var(--whatsapp);
  color:         #fff;
  padding:       0.85rem 1.75rem;
  border-radius: var(--radius-pill);
  font-size:     0.95rem;
  font-weight:   700;
  margin-top:    1.5rem;
  letter-spacing: 0.01em;
  transition:    background var(--transition), transform var(--transition),
                 box-shadow var(--transition);
  width: fit-content;
}

.whatsapp-btn:hover {
  background:  var(--whatsapp-dark);
  transform:   translateY(-3px);
  box-shadow:  0 12px 30px rgba(37,211,102,0.3);
}

.whatsapp-icon { flex-shrink: 0; width: 22px; height: 22px; }

/* --- Right: form --- */
.contact-form {
  display:        flex;
  flex-direction: column;
  gap:            1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap:     1.25rem;
}

.form-group {
  display:        flex;
  flex-direction: column;
  gap:            0.45rem;
}

.form-label {
  font-size:   0.82rem;
  font-weight: 600;
  color:       var(--text-secondary);
  letter-spacing: 0.03em;
}

/* Shared input / textarea / select base */
.form-input {
  background:    var(--bg-elevated);
  border:        1.5px solid var(--bg-border);
  border-radius: var(--radius-md);
  padding:       0.85rem 1rem;
  font-family:   var(--font-sans);
  font-size:     0.95rem;
  color:         var(--text-primary);
  outline:       none;
  width:         100%;
  transition:    border-color var(--transition), box-shadow var(--transition),
                 background var(--transition);
  appearance:    none;
  -webkit-appearance: none;
}

.form-input::placeholder { color: var(--text-muted); }

.form-input:focus {
  border-color: var(--accent);
  box-shadow:   0 0 0 3px var(--accent-glow);
  background:   var(--bg-base);
}

/* Error state */
.form-input.error { border-color: var(--red); box-shadow: 0 0 0 3px rgba(244,63,94,0.15); }

.form-select {
  cursor: pointer;
  /* Custom arrow */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:   no-repeat;
  background-position: right 1rem center;
  padding-right:       2.5rem;
}

.form-select option { background: var(--bg-elevated); color: var(--text-primary); }

.form-textarea {
  resize:     vertical;
  min-height: 140px;
  line-height: 1.7;
}

.form-error {
  font-size: 0.78rem;
  color:     var(--red);
  min-height: 1rem;
}

/* Submit button states */
#submitBtn { position: relative; overflow: hidden; }

.btn-spinner {
  display:       none;
  width:         18px;
  height:        18px;
  border:        2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation:     spin 0.7s linear infinite;
}

#submitBtn.loading .btn-text    { opacity: 0; }
#submitBtn.loading .btn-spinner { display: block; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Form feedback message */
.form-feedback {
  padding:       0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-size:     0.9rem;
  font-weight:   500;
  display:       none;
}

.form-feedback.success {
  display:    block;
  background: rgba(34,197,94,0.12);
  border:     1px solid rgba(34,197,94,0.3);
  color:      var(--green);
}

.form-feedback.error-msg {
  display:    block;
  background: rgba(244,63,94,0.12);
  border:     1px solid rgba(244,63,94,0.3);
  color:      var(--red);
}


/* ================================================================
   16 – FOOTER
   ================================================================ */
.footer {
  background:    var(--bg-surface);
  border-top:    1px solid var(--bg-border);
  padding-block: 4rem 2rem;
}

.footer-inner {
  display:               grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap:                   3rem;
  margin-bottom:         3rem;
}

/* Brand column */
.footer-logo { margin-bottom: 1rem; }

.footer-tagline {
  font-size:   0.9rem;
  color:       var(--text-muted);
  max-width:   240px;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

/* Social icons */
.social-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.social-link {
  width:         36px;
  height:        36px;
  border-radius: var(--radius-sm);
  background:    var(--bg-elevated);
  border:        1px solid var(--bg-border);
  display:       grid;
  place-items:   center;
  color:         var(--text-muted);
  transition:    color var(--transition), border-color var(--transition),
                 background var(--transition), transform var(--transition);
}

.social-link:hover {
  color:        var(--accent);
  border-color: var(--accent);
  background:   var(--accent-glow);
  transform:    translateY(-2px);
}

/* Footer nav columns */
.footer-nav-title {
  font-size:     0.75rem;
  font-weight:   700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color:         var(--text-muted);
  margin-bottom: 1.25rem;
}

.footer-nav-list {
  display:        flex;
  flex-direction: column;
  gap:            0.7rem;
}

.footer-nav-list a {
  font-size:  0.9rem;
  color:      var(--text-muted);
  transition: color var(--transition);
}

.footer-nav-list a:hover { color: var(--text-primary); }

/* Footer contact column */
.footer-contact p {
  font-size:    0.9rem;
  color:        var(--text-muted);
  margin-bottom: 0.5rem;
}

.footer-whatsapp {
  display:       inline-flex;
  align-items:   center;
  gap:           0.5rem;
  color:         var(--whatsapp);
  font-size:     0.9rem;
  font-weight:   600;
  margin-top:    0.75rem;
  transition:    opacity var(--transition);
}

.footer-whatsapp:hover { opacity: 0.8; }

/* Footer bottom bar */
.footer-bottom {
  border-top:  1px solid var(--bg-border);
  padding-top: 1.5rem;
  display:     flex;
  align-items: center;
  justify-content: space-between;
  gap:         1rem;
  flex-wrap:   wrap;
}

.footer-bottom p,
.footer-bottom-links a {
  font-size: 0.82rem;
  color:     var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap:     1.5rem;
}

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


/* ================================================================
   17 – BACK-TO-TOP BUTTON
   ================================================================ */
.back-to-top {
  position:        fixed;
  bottom:          2rem;
  right:           2rem;
  width:           46px;
  height:          46px;
  border-radius:   50%;
  background:      var(--accent);
  color:           #fff;
  display:         grid;
  place-items:     center;
  box-shadow:      0 8px 24px var(--accent-glow);
  z-index:         900;
  /* Hidden by default */
  opacity:         0;
  transform:       translateY(12px);
  pointer-events:  none;
  transition:      opacity var(--transition), transform var(--transition),
                   background var(--transition);
}

.back-to-top.visible {
  opacity:        1;
  transform:      translateY(0);
  pointer-events: auto;
}

.back-to-top:hover { background: var(--accent-dark); }


/* ================================================================
   18 – RESPONSIVE: TABLET (≤1024px)
   ================================================================ */
@media (max-width: 1024px) {

  /* Hero: shrink gap */
  .hero-inner { gap: 2.5rem; }

  /* Float stat cards reposition */
  .float-stat--tl { top: -0.5rem; left: -0.5rem; }
  .float-stat--br { bottom: 0;    right: -0.5rem; }

  /* About: wider text column */
  .about-inner { gap: 3rem; }

  /* Services: 2-column */
  .services-grid { grid-template-columns: repeat(2, 1fr); }

  /* Portfolio: 2-col */
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-item--wide { grid-column: span 2; }

  /* Testimonials: 2-col */
  .testimonials-track { grid-template-columns: repeat(2, 1fr); }

  /* Footer: 2-col */
  .footer-inner { grid-template-columns: 1fr 1fr; }
}


/* ================================================================
   19 – RESPONSIVE: MOBILE (≤768px)
   ================================================================ */
@media (max-width: 768px) {

  :root { --section-gap: 4.5rem; }

  /* ----- Hero ----- */
  .hero-inner {
    grid-template-columns: 1fr;
    text-align:   center;
    gap:          3rem;
  }

  .hero-text { align-items: center; }

  .hero-sub   { max-width: 100%; }
  .hero-ctas  { justify-content: center; }
  .hero-proof { justify-content: center; }

  .hero-visual { padding: 0 1rem; }

  .float-stat--tl { top: auto; left: 0;    bottom: 3rem; }
  .float-stat--br { right: 0; bottom: -0.5rem; }

  /* ----- About ----- */
  .about-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .about-text { align-items: center; }
  .section-body { max-width: 100%; }

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

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

  /* ----- Portfolio ----- */
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-item--wide { grid-column: span 1; }

  /* ----- Testimonials (activate slider) ----- */
  .testimonials-track {
    grid-template-columns: repeat(4, 100%);  /* 4 cards, each 100% */
    gap:                   0;
    /* JS will translate this */
  }

  .testimonials-track-wrapper { cursor: grab; }
  .testimonials-track-wrapper:active { cursor: grabbing; }

  /* ----- CTA Band ----- */
  .cta-band-inner { flex-direction: column; text-align: center; }

  /* ----- Contact ----- */
  .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row      { grid-template-columns: 1fr; }

  /* ----- Footer ----- */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand { grid-column: span 2; }

  .footer-bottom { flex-direction: column; text-align: center; }
}


/* ================================================================
   20 – RESPONSIVE: SMALL MOBILE (≤480px)
   ================================================================ */
@media (max-width: 480px) {

  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; }

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

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

  .back-to-top { bottom: 1.25rem; right: 1.25rem; }
}