/* ============================================
   SHREE NANDI VENTURES - PREMIUM CSS
   Dark Theme | Responsive | Animations
   ============================================ */

/* CSS Variables */
:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #0D0D0D;
  --bg-card: #141414;
  --bg-card-hover: #1A1A1A;
  --border-color: #2A2A2A;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255,255,255,0.7);
  --text-muted: rgba(255,255,255,0.5);
  --accent: #C4956A;
  --accent-light: #D4A87A;
  --accent-dark: #A67B52;
  --charcoal: #1A1A1A;
  --whatsapp: #25D366;
  --shadow: 0 8px 40px rgba(0,0,0,0.3);
  --transition: all 0.3s ease;
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-label: 'Space Grotesk', sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

/* Section Labels & Headers */
.section-label {
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header .section-label,
.section-header .section-title,
.section-header .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-transform: none;
}

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

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(196,149,106,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(196,149,106,0.1);
}

.btn-full {
  width: 100%;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 120px;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  z-index: 1001;
}

.logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-img {
  height: 96px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

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

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

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10,10,10,0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.4) 50%, rgba(10,10,10,0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 140px 24px 0;
  animation: fadeInUp 1s ease-out;
}

.hero-label {
  font-family: var(--font-label);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 20px;
  text-shadow: 0 2px 30px rgba(0,0,0,0.5);
}

.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-indicators {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 10px;
}

.indicator {
  width: 40px;
  height: 3px;
  background: rgba(255,255,255,0.3);
  border-radius: 2px;
  cursor: pointer;
  transition: var(--transition);
}

.indicator.active {
  background: var(--accent);
  width: 60px;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: rgba(255,255,255,0.5);
  font-size: 20px;
  animation: bounceSlow 1.5s ease-in-out infinite;
}

/* ============================================
   STATISTICS SECTION
   ============================================ */
.stats-section {
  background: var(--bg-secondary);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number,
.stat-suffix {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  background: var(--bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.about-text {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.about-features {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-primary);
}

.about-features li i {
  color: var(--accent);
  font-size: 18px;
}

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

.about-image {
  border-radius: 12px;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-image:hover img {
  transform: scale(1.03);
}

.experience-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--accent);
  padding: 24px 28px;
  border-radius: 12px;
  color: var(--charcoal);
}

.exp-number {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  display: block;
}

.exp-text {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-section {
  background: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 40px 32px;
  transition: var(--transition);
}

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

.service-icon {
  width: 56px;
  height: 56px;
  background: rgba(196,149,106,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.service-icon i {
  font-size: 24px;
  color: var(--accent);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects-section {
  background: var(--bg-primary);
}

.project-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 30px;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

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

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.project-card {
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.project-card.hidden {
  display: none;
}

.project-image {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

.project-image img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, rgba(10,10,10,0.3) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px;
  transition: var(--transition);
}

.project-tag {
  display: inline-block;
  background: var(--accent);
  color: var(--charcoal);
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  width: fit-content;
}

.project-overlay h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 4px;
}

.project-overlay p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.project-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project-link:hover {
  color: var(--accent-light);
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process-section {
  background: var(--bg-secondary);
}

.process-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: translateX(-50%);
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 50px;
  position: relative;
}

.process-step:nth-child(even) {
  flex-direction: row-reverse;
  text-align: right;
}

.process-step:nth-child(even) .step-content {
  text-align: right;
}

.step-number {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: var(--accent);
  color: var(--charcoal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  position: relative;
  z-index: 2;
}

.step-content {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent);
  padding: 28px;
  border-radius: 0 12px 12px 0;
}

.process-step:nth-child(even) .step-content {
  border-left: none;
  border-right: 3px solid var(--accent);
  border-radius: 12px 0 0 12px;
}

.step-content h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   CALCULATOR SECTION
   ============================================ */
.calculator-section {
  background: var(--bg-primary);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.calculator-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 16px 0 24px;
}

.calculator-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.calculator-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-primary);
}

.calculator-features li i {
  color: var(--accent);
}

.calculator-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
}

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

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

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group select {
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
}

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

.form-group input[type="range"] {
  padding: 0;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--border-color);
  border-radius: 3px;
  outline: none;
}

.form-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
}

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

.radio-group {
  display: flex;
  gap: 8px;
}

.radio-label {
  flex: 1;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
}

.radio-label input {
  display: none;
}

.radio-label.active,
.radio-label:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--charcoal);
}

.calculator-result {
  display: none;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  animation: fadeInUp 0.5s ease;
}

.calculator-result.show {
  display: block;
}

.result-header {
  text-align: center;
  margin-bottom: 20px;
}

.result-header h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.result-amount {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
}

.result-details {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.result-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}

.result-item span:first-child {
  color: var(--text-secondary);
}

.result-item span:last-child {
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials-section {
  background: var(--bg-secondary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 32px;
  transition: var(--transition);
}

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

.testimonial-stars {
  color: var(--accent);
  font-size: 14px;
  margin-bottom: 16px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--accent);
  color: var(--charcoal);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
}

.author-info h4 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
}

.author-info span {
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq-section {
  background: var(--bg-primary);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--accent);
}

.faq-question i {
  transition: transform 0.3s ease;
  color: var(--accent);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
}

.contact-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 16px 0 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

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

.contact-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: rgba(196,149,106,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon i {
  font-size: 20px;
  color: var(--accent);
}

.contact-text h4 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-text p,
.contact-text a {
  font-size: 14px;
  color: var(--text-secondary);
}

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

.social-links {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.social-links a {
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--accent);
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--accent);
  color: var(--charcoal);
  border-color: var(--accent);
}

.map-container {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
}

.contact-form h3 {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 24px;
}

.contact-form .form-group textarea {
  resize: vertical;
  min-height: 100px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-body);
}

/* Custom Image CAPTCHA Styling */
.captcha-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.captcha-box {
  display: flex;
  align-items: center;
  gap: 10px;
}

.captcha-image {
  height: 60px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  background: var(--bg-secondary);
}

.captcha-refresh {
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--accent);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.captcha-refresh:hover {
  background: var(--accent);
  color: var(--charcoal);
  border-color: var(--accent);
}

.captcha-refresh i {
  transition: transform 0.3s ease;
}

.captcha-refresh:hover i {
  transform: rotate(180deg);
}

.captcha-note {
  font-size: 12px;
  color: var(--text-muted);
}

/* PHP Message Alerts */
.php-alert {
  padding: 16px 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: fadeInUp 0.4s ease;
}

.php-alert-success {
  background: rgba(37, 211, 102, 0.15);
  border: 1px solid rgba(37, 211, 102, 0.3);
  color: #25D366;
}

.php-alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #EF4444;
}

.php-alert i {
  font-size: 18px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}

.form-success.show {
  display: block;
  animation: fadeInUp 0.5s ease;
}

.success-icon {
  font-size: 56px;
  color: var(--accent);
  margin-bottom: 16px;
}

.form-success h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success p {
  color: var(--text-secondary);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #050505;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 0;
}

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

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.footer-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo-img {
  height: 120px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.footer-social a {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--charcoal);
  border-color: var(--accent);
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-contact li i {
  color: var(--accent);
  margin-top: 4px;
  min-width: 16px;
}

.footer-contact a {
  color: var(--text-muted);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 14px;
  color: var(--text-muted);
}

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

.footer-legal a {
  font-size: 14px;
  color: var(--text-muted);
}

.footer-legal a:hover {
  color: var(--accent);
}

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.floating-buttons {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.fab:hover {
  transform: scale(1.1);
}

.fab-whatsapp {
  background: var(--whatsapp);
}

.fab-call {
  background: var(--accent);
}

.fab-top {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

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

.fab-top:hover {
  background: rgba(255,255,255,0.2);
}

/* ============================================
   MOBILE STICKY BAR
   ============================================ */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 998;
  display: none;
  height: 56px;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border-color);
}

.sticky-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--charcoal);
}

.sticky-call {
  background: var(--accent);
}

.sticky-whatsapp {
  background: var(--whatsapp);
  color: #fff;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounceSlow {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(8px);
  }
}

@keyframes pulseSoft {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Scroll Animation Classes */
[data-aos] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-right"] {
  transform: translateX(-40px);
}

[data-aos="fade-right"].aos-animate {
  transform: translateX(0);
}

[data-aos="fade-left"] {
  transform: translateX(40px);
}

[data-aos="fade-left"].aos-animate {
  transform: translateX(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .about-grid,
  .calculator-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-image-wrapper {
    order: -1;
  }
  
  .experience-card {
    left: 20px;
    bottom: 20px;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .nav-actions .btn {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .section-padding {
    padding: 60px 0;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .stat-number,
  .stat-suffix {
    font-size: 28px;
  }
  
  .services-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-line {
    left: 30px;
  }
  
  .process-step,
  .process-step:nth-child(even) {
    flex-direction: row;
    text-align: left;
    padding-left: 0;
  }
  
  .process-step:nth-child(even) .step-content {
    text-align: left;
    border-left: 3px solid var(--accent);
    border-right: none;
    border-radius: 0 12px 12px 0;
  }
  
  .step-number {
    width: 50px;
    height: 50px;
    min-width: 50px;
    font-size: 16px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .floating-buttons {
    bottom: 70px;
    right: 16px;
  }
  
  .fab {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }
  
  .mobile-sticky-bar {
    display: flex;
  }
  
  body {
    padding-bottom: 56px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .stats-grid {
    gap: 16px;
  }
  
  .project-filters {
    gap: 8px;
  }
  
  .filter-btn {
    padding: 8px 16px;
    font-size: 13px;
  }
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}