/* ==========================================================
   KOTHA ENTERPRISE (কথা এন্টারপ্রাইজ) - MAIN STYLESHEET
   Design Philosophy: Minimalist Modern, Emerald & Forest Palette,
   Rounded pill aesthetics, 3D breakout visuals, Bengali typography.
   ========================================================== */

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

:root {
  /* Brand Color Tokens */
  --color-primary: #062c24;        /* Deep Forest Teal */
  --color-primary-light: #0d463a;  /* Forest Midtone */
  --color-primary-dark: #031814;   /* Deepest Obsidian Forest */
  --color-accent: #059669;         /* Vibrant Emerald */
  --color-accent-bright: #10b981;  /* High-energy Emerald */
  --color-accent-light: #d1fae5;   /* Soft Emerald Tint */
  --color-accent-subtle: #f0fdf4;  /* Very Light Green Surface */
  --color-accent-glow: rgba(16, 185, 129, 0.28);
  
  /* Neutral Color Tokens */
  --color-bg-body: #eaedea;        /* Soft ambient backdrop canvas */
  --color-bg-card: #ffffff;        /* Pure White Card Canvas */
  --color-bg-subtle: #f7faf8;      /* Light Gray-Green Surface */
  --color-text-title: #0f172a;     /* Deep slate black */
  --color-text-body: #334155;      /* Slate charcoal */
  --color-text-muted: #64748b;     /* Muted secondary text */
  --color-border: #e2e8f0;         /* Card & Tag border */
  --color-border-light: #edf2f7;   /* Subtle divider */
  
  /* Typography */
  --font-bangla: 'Hind Siliguri', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-latin: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Geometry & Elevation */
  --radius-pill: 9999px;
  --radius-xl: 40px;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;
  
  --shadow-sm: 0 2px 8px rgba(6, 44, 36, 0.04);
  --shadow-md: 0 12px 24px -6px rgba(6, 44, 36, 0.08);
  --shadow-lg: 0 25px 50px -12px rgba(6, 44, 36, 0.12), 0 0 0 1px rgba(6, 44, 36, 0.03);
  --shadow-glow: 0 15px 35px -5px rgba(16, 185, 129, 0.35);
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-bangla);
  background-color: var(--color-bg-body);
  color: var(--color-text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 24px 20px 40px;
  min-height: 100vh;
}

/* Main Outer Shell (Mirrors the reference card frame) */
.outer-frame {
  max-width: 1400px;
  margin: 0 auto;
  background-color: var(--color-bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
}

/* Typography Presets */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-title);
  font-weight: 700;
  line-height: 1.25;
}

p {
  color: var(--color-text-body);
  font-size: 1.05rem;
  line-height: 1.7;
}

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

button {
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: var(--transition);
}

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

.num, .latin {
  font-family: var(--font-latin);
}

/* ==========================================================
   NAVIGATION BAR
   ========================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
  padding: 16px 48px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
}

.brand-name-group {
  display: flex;
  flex-direction: column;
}

.brand-name-en {
  font-family: var(--font-latin);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  line-height: 1.1;
}

.brand-name-bn {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-text-body);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.25s ease;
  border-radius: var(--radius-pill);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Reference button style: Black pill button */
.btn-pill-dark {
  background-color: #0d1218;
  color: #ffffff;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.btn-pill-dark:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.22);
  color: #ffffff;
}

/* Mobile Toggle */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  padding: 8px;
  color: var(--color-text-title);
  font-size: 1.5rem;
}

/* ==========================================================
   HERO SECTION (FAITHFUL TO REFERENCE IMAGE)
   ========================================================== */
.hero-section {
  padding: 56px 48px 48px;
  position: relative;
  overflow: visible;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 40px;
  min-height: 580px;
}

.hero-content {
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 580px;
}

.hero-badge {
  font-family: var(--font-latin);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  color: var(--color-text-muted);
  font-weight: 700;
}

.hero-title {
  font-size: 3.6rem;
  font-weight: 800;
  color: #111827;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-title .highlight {
  color: var(--color-accent);
  position: relative;
  display: inline-block;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 500px;
}

/* Green pill CTA button (Reference Match) */
.btn-pill-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  font-size: 1.05rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: var(--shadow-glow);
  width: fit-content;
  transition: var(--transition);
}

.btn-pill-primary:hover {
  background-color: #047857;
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -6px rgba(5, 150, 105, 0.45);
  color: #ffffff;
}

/* Category Pill Chips (Reference Match) */
.hero-tags-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

.tag-pill {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-body);
  border: 1.5px solid #d1d5db;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  background: transparent;
  transition: var(--transition);
  cursor: pointer;
  user-select: none;
}

.tag-pill:hover,
.tag-pill.active {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-accent-subtle);
  transform: translateY(-1px);
}

/* HERO VISUAL CONTAINER (Exact reference architecture) */
.hero-visual-wrapper {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  height: 100%;
}

.hero-shape-backdrop {
  position: relative;
  width: 100%;
  max-width: 480px;
  height: 520px;
  background: linear-gradient(155deg, #09392e 0%, #052720 100%);
  /* Custom organic rounded geometry matching reference */
  border-radius: 60px 48px 60px 140px;
  overflow: hidden;
  box-shadow: 0 30px 70px -15px rgba(6, 44, 36, 0.35);
}

/* Subtle architectural fluted columns inside shape (Reference Match) */
.hero-shape-backdrop::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 36px,
    rgba(255, 255, 255, 0.035) 36px,
    rgba(255, 255, 255, 0.035) 54px
  );
  pointer-events: none;
}

/* Subtle internal green ambient glow */
.hero-shape-backdrop::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

/* 3D Breakout Statue Visual */
.hero-sculpture-img {
  position: absolute;
  bottom: -20px;
  right: 20px;
  width: 530px;
  max-width: none;
  z-index: 10;
  filter: drop-shadow(0 25px 35px rgba(4, 28, 23, 0.45));
  animation: subtleFloat 7s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes subtleFloat {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  100% {
    transform: translateY(-8px) rotate(0.6deg);
  }
}

/* Micro floating badges */
.floating-stat-badge {
  position: absolute;
  z-index: 15;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  box-shadow: 0 16px 32px rgba(6, 44, 36, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}

.floating-stat-badge:hover {
  transform: scale(1.05);
}

.stat-badge-1 {
  bottom: 30px;
  left: -20px;
}

.stat-badge-2 {
  top: 40px;
  right: -10px;
}

.badge-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.badge-text-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-title);
  line-height: 1.1;
}

.badge-text-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ==========================================================
   METRICS / TRUST STRIP
   ========================================================== */
.metrics-strip {
  background-color: #f8fbf9;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: 40px 48px;
}

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

.metric-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-number {
  font-family: var(--font-latin);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.metric-number span {
  color: var(--color-accent);
}

.metric-label {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--color-text-title);
}

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

/* ==========================================================
   SECTION COMMON WRAPPERS
   ========================================================== */
.section {
  padding: 88px 48px;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-latin);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-accent-light);
}

.section-title {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--color-text-title);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

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

.service-card {
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), #34d399);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-light);
  box-shadow: 0 20px 40px -10px rgba(6, 44, 36, 0.1);
}

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

.service-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  transition: var(--transition);
}

.service-card:hover .service-icon-box {
  background: var(--color-accent);
  color: #ffffff;
  transform: rotate(6deg) scale(1.05);
}

.service-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-title);
}

.service-desc {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.service-features-list {
  list-style: none;
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features-list li {
  font-size: 0.9rem;
  color: var(--color-text-body);
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-features-list li svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.service-action-link {
  margin-top: auto;
  padding-top: 14px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.service-action-link:hover {
  gap: 10px;
  color: var(--color-primary);
}

/* ==========================================================
   INTERACTIVE PROJECT COST CALCULATOR
   ========================================================== */
.calculator-section {
  background: linear-gradient(175deg, #f3f7f4 0%, #e9f2ec 100%);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.calc-card-container {
  max-width: 1050px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  overflow: hidden;
}

.calc-form-side {
  padding: 44px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.calc-group-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-title);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.calc-option-btn {
  border: 1.5px solid var(--color-border);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: #ffffff;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-body);
}

.calc-option-btn:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
}

.calc-option-btn.selected {
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.12);
}

.calc-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.calc-checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.92rem;
  font-weight: 500;
}

.calc-checkbox-label:hover {
  background: var(--color-bg-subtle);
}

.calc-checkbox-label input[type="checkbox"] {
  accent-color: var(--color-accent);
  width: 17px;
  height: 17px;
}

.calc-result-side {
  background: linear-gradient(160deg, #09392e 0%, #05261f 100%);
  color: #ffffff;
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.calc-result-side::after {
  content: '';
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25), transparent 70%);
  pointer-events: none;
}

.calc-summary-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-summary-title {
  color: #a7f3d0;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}

.calc-summary-desc {
  color: #94a3b8;
  font-size: 0.9rem;
}

.calc-output-box {
  margin: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-estimate-tag {
  font-size: 0.85rem;
  color: #cbd5e1;
}

.calc-price-display {
  font-family: var(--font-latin);
  font-size: 2.6rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
}

.calc-price-currency {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-accent-bright);
}

.calc-timeline-display {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.92rem;
}

.calc-timeline-display strong {
  color: #34d399;
}

.btn-calc-cta {
  background: var(--color-accent-bright);
  color: #062c24;
  padding: 16px;
  border-radius: var(--radius-pill);
  font-size: 1.05rem;
  font-weight: 700;
  text-align: center;
  width: 100%;
  display: inline-block;
  box-shadow: 0 10px 25px rgba(16, 185, 129, 0.35);
  transition: var(--transition);
}

.btn-calc-cta:hover {
  background: #ffffff;
  color: var(--color-primary);
  transform: translateY(-2px);
}

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

.filter-pill {
  border: 1.5px solid var(--color-border);
  background: #ffffff;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-body);
  transition: var(--transition);
}

.filter-pill:hover,
.filter-pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.portfolio-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1.5px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-light);
  box-shadow: var(--shadow-lg);
}

.portfolio-img-container {
  position: relative;
  overflow: hidden;
  height: 280px;
  background: #0f172a;
}

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

.portfolio-card:hover .portfolio-img {
  transform: scale(1.05);
}

.portfolio-badge-pill {
  position: absolute;
  top: 18px;
  left: 18px;
  background: rgba(6, 44, 36, 0.85);
  backdrop-filter: blur(10px);
  color: #a7f3d0;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

.portfolio-info {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.portfolio-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-title);
}

.portfolio-desc {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.portfolio-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-accent-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
}

/* ==========================================================
   DEVELOPMENT METHODOLOGY / PROCESS
   ========================================================== */
.process-section {
  background: #ffffff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  background: #fafcfb;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: var(--transition);
}

.process-card:hover {
  background: #ffffff;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.process-step-num {
  font-family: var(--font-latin);
  font-size: 2rem;
  font-weight: 800;
  color: #cbd5e1;
  line-height: 1;
  transition: var(--transition);
}

.process-card:hover .process-step-num {
  color: var(--color-accent);
}

.process-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-title);
}

.process-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================
   TESTIMONIALS
   ========================================================== */
.testimonials-section {
  background: #f8faf9;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

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

.testimonial-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
}

.testimonial-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  letter-spacing: 2px;
}

.testimonial-quote {
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--color-text-body);
  font-style: italic;
}

.testimonial-author-group {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--color-border-light);
  padding-top: 16px;
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.author-info h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-title);
}

.author-info p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ==========================================================
   CONTACT SECTION & LOCATION
   ========================================================== */
.contact-section {
  padding: 88px 48px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1.5px solid var(--color-border);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.contact-details-side {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-heading-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-item-content h5 {
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-item-content p, 
.contact-item-content a {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-title);
}

.contact-item-content a:hover {
  color: var(--color-accent);
}

/* Form Styling */
.contact-form-side {
  background: #fafcfb;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-title);
}

.form-control {
  font-family: inherit;
  font-size: 0.98rem;
  padding: 13px 18px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: #ffffff;
  color: var(--color-text-title);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-glow);
}

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

.form-alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  display: none;
}

.form-alert.success {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

/* ==========================================================
   FOOTER
   ========================================================== */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #94a3b8;
  padding: 64px 48px 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 320px;
}

.footer-logo {
  filter: brightness(0) invert(1);
  height: 42px;
  width: fit-content;
}

.footer-desc {
  font-size: 0.95rem;
  line-height: 1.65;
  color: #94a3b8;
}

.footer-col-title {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #34d399;
  transform: translateX(4px);
}

.footer-newsletter-form {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.footer-input {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  color: #ffffff;
  font-size: 0.9rem;
  flex: 1;
  outline: none;
}

.footer-input:focus {
  border-color: var(--color-accent-bright);
}

.footer-btn {
  background: var(--color-accent-bright);
  color: var(--color-primary-dark);
  font-weight: 700;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  font-size: 0.88rem;
}

/* ==========================================================
   CONSULTATION MODAL
   ========================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 44, 36, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  padding: 40px;
  position: relative;
  box-shadow: 0 35px 70px rgba(0,0,0,0.3);
  transform: translateY(20px) scale(0.96);
  transition: var(--transition);
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #f1f5f9;
  color: var(--color-text-title);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  transition: var(--transition);
}

.modal-close-btn:hover {
  background: #e2e8f0;
  color: #ef4444;
}

/* ==========================================================
   FLOATING ACTION BUTTONS
   ========================================================== */
.floating-actions {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
  transition: var(--transition);
}

.btn-back-to-top {
  background: #ffffff;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
}

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

.btn-whatsapp-float {
  background: #25d366;
  color: #ffffff;
  font-size: 1.4rem;
}

.float-btn:hover {
  transform: scale(1.1);
}

/* ==========================================================
   RESPONSIVE DESIGN (TABLETS & MOBILE)
   ========================================================== */
@media (max-width: 1200px) {
  .hero-layout {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .hero-title {
    font-size: 3rem;
  }
  .hero-sculpture-img {
    width: 450px;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  body {
    padding: 12px 10px 24px;
  }
  .site-header {
    padding: 16px 24px;
  }
  .nav-menu {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--color-border);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path 0.35s ease;
  }
  .nav-menu.open {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }
  .mobile-nav-toggle {
    display: block;
  }
  .hero-section {
    padding: 40px 24px;
  }
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero-visual-wrapper {
    justify-content: center;
    margin-top: 20px;
  }
  .hero-shape-backdrop {
    height: 440px;
    max-width: 420px;
  }
  .hero-sculpture-img {
    width: 420px;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .calc-card-container {
    grid-template-columns: 1fr;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .contact-layout {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .hero-shape-backdrop {
    height: 380px;
    max-width: 330px;
    border-radius: 40px 30px 40px 90px;
  }
  .hero-sculpture-img {
    width: 350px;
    right: 0px;
    bottom: -15px;
  }
  .stat-badge-1 {
    bottom: 10px;
    left: 0;
  }
  .stat-badge-2 {
    top: 15px;
    right: 0;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .calc-options-grid,
  .calc-features-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}