/* ==========================================================================
   LOGO WALA — PUBLIC DESIGN SYSTEM & STYLESHEET
   Aesthetics: High-End Agency / Dark Luxury / High Contrast / Editorial Typography
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Syne:wght@500;600;700;800&display=swap');

/* --- 1. DESIGN TOKENS & VARIABLES --- */
:root {
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Color Palette */
  --color-bg: #0A0B0E;
  --color-bg-alt: #111319;
  --color-surface: #161822;
  --color-surface-hover: #1E212F;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-accent: rgba(212, 175, 55, 0.3);

  --color-text-main: #F4F5F7;
  --color-text-muted: #9E9EB2;
  --color-text-dim: #636578;

  /* Gold / Amber Luxury Accents */
  --color-primary: #D4AF37;
  --color-primary-hover: #E5C158;
  --color-accent-glow: rgba(212, 175, 55, 0.15);

  --color-white: #FFFFFF;
  --color-black: #000000;

  /* Layout Spacing */
  --container-max: 1280px;
  --header-height: 84px;

  /* Elevation & Shadows */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 30px rgba(212, 175, 55, 0.12);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- 2. CSS RESET & GLOBAL BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text-main);
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  background-color: var(--color-bg);
}

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

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

ul {
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* --- 3. TYPOGRAPHY HIERARCHY --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem); }
h2 { font-size: clamp(2rem, 3.5vw + 1rem, 3.25rem); }
h3 { font-size: clamp(1.4rem, 2vw + 0.5rem, 2rem); }
h4 { font-size: 1.25rem; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.section-tag::before {
  content: '';
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: inline-block;
}

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

/* --- 4. BUTTONS & UI COMPONENTS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.95rem 2rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(212, 175, 55, 0.3);
}

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

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

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
}

.btn-whatsapp:hover {
  background-color: #20BA5A;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.3);
}

/* Floating WhatsApp Button */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 99;
  width: 56px;
  height: 56px;
  background-color: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-normal), background-color var(--transition-fast);
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  background-color: #20BA5A;
}

/* --- 5. HEADER & NAVIGATION --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(10, 11, 14, 0.88);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--color-border);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-white);
}

.brand-logo span {
  color: var(--color-primary);
}

.brand-logo img {
  height: 40px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-white);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.8rem;
  cursor: pointer;
}

/* --- 6. HERO SECTION --- */
.hero-section {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  max-width: 680px;
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-subtext {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
}

.hero-featured-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-featured-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
}

/* --- 7. TRUST / STATS COUNTER SECTION --- */
.stats-section {
  padding: 4rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
}

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

.stat-item {
  padding: 1rem;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- 8. PORTFOLIO SHOWCASE & AJAX FILTER --- */
.portfolio-section {
  padding: 7rem 0;
}

.portfolio-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.category-filter-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 0.6rem 1.4rem;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

/* Editorial Layout Variation for large screens */
@media (min-width: 1024px) {
  .portfolio-grid.editorial-layout .portfolio-card:nth-child(5n + 1) {
    grid-column: span 2;
  }
}

.portfolio-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), border-color var(--transition-fast), box-shadow var(--transition-normal);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.portfolio-thumb-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #050608;
}

.portfolio-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-card:hover .portfolio-thumb {
  transform: scale(1.06);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(10, 11, 14, 0.9) 0%, rgba(10, 11, 14, 0.2) 60%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

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

.portfolio-info {
  padding: 1.5rem;
}

.portfolio-category-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.portfolio-title {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.portfolio-client {
  font-size: 0.88rem;
  color: var(--color-text-dim);
}

/* --- 9. SERVICES DISCIPLINE SECTION --- */
.services-section {
  padding: 7rem 0;
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  border-radius: 8px;
  transition: all var(--transition-normal);
  position: relative;
}

.service-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  background-color: var(--color-surface-hover);
}

.service-icon {
  width: 54px;
  height: 54px;
  background-color: rgba(212, 175, 55, 0.1);
  border: 1px solid var(--color-border-accent);
  color: var(--color-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.service-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- 10. TESTIMONIALS SECTION --- */
.testimonials-section {
  padding: 7rem 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-rating {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.testimonial-text {
  font-size: 1.05rem;
  color: var(--color-text-main);
  font-style: italic;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-primary);
}

.author-name {
  font-weight: 700;
  color: var(--color-white);
  font-size: 0.95rem;
}

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

/* --- 11. FOOTER --- */
.site-footer {
  background-color: #060709;
  border-top: 1px solid var(--color-border);
  padding-top: 5rem;
  padding-bottom: 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  color: var(--color-text-muted);
  margin-top: 1.25rem;
  font-size: 0.95rem;
  max-width: 340px;
}

.footer-heading {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--color-white);
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- 12. RESPONSIVE BREAKPOINTS --- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    display: none;
  }

  .main-nav.active {
    display: flex;
  }

  .mobile-menu-toggle {
    display: block;
  }

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

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

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