/* ===================================
   KARTANO - Modern Portfolio CSS
   =================================== */

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

:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;
  --color-secondary: #8b5cf6;
  --color-accent: #ec4899;
  
  --color-bg-primary: #0f0f1e;
  --color-bg-secondary: #1a1a2e;
  --color-bg-tertiary: #252538;
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-tertiary: #71717a;
  
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-hover: rgba(255, 255, 255, 0.2);
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  --gradient-accent: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  --gradient-text: linear-gradient(135deg, #6366f1, #ec4899);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.25);
  
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  --shadow-glow-accent: 0 0 40px rgba(236, 72, 153, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', var(--font-primary);
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 4rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;
  
  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-cursor: 500;
}

/* Base Styles */
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

::selection {
  background-color: var(--color-primary);
  color: white;
}

::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

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


/* Loading Screen
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  text-align: center;
}

.loading-logo img {
  width: 200px;
  height: auto;
  margin-bottom: var(--spacing-lg);
  animation: pulse 2s ease-in-out infinite;
}

.loading-bar {
  width: 300px;
  height: 4px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.loading-progress {
  height: 100%;
  background: var(--gradient-primary);
  width: 0;
  animation: loading 2s ease-in-out forwards;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.95); }
}

@keyframes loading {
  0% { width: 0; }
  100% { width: 100%; }
} */

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md) 0;
  background: transparent;
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.nav.scrolled {
  background: rgba(15, 15, 30, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo img {
  height: 40px;
  width: auto;
  transition: transform var(--transition-base);
}

.nav__logo:hover img {
  transform: translateY(-2px);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav__link {
  position: relative;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition-base);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__cta {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.nav__cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

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

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 1rem 2rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
  justify-content: center;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--spacing-3xl) * 2) 0 var(--spacing-3xl);
  overflow: hidden;
}

.hero__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__gradient {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  filter: blur(80px);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(-50%, -50%); }
  50% { transform: translate(-50%, -60%); }
}

.hero__grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

.hero__container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  backdrop-filter: blur(10px);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.hero__title-line {
  display: block;
}

.hero__title-line--gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
}

.hero__actions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  font-family: var(--font-display);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.hero__stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__visual {
  position: relative;
  height: 600px;
}

.hero__card {
  position: absolute;
  width: 280px;
  height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-base);
}

.hero__card:hover {
  transform: translateY(-10px) !important;
}

.hero__card--1 {
  top: 0;
  left: 0;
  z-index: 3;
}

.hero__card--2 {
  top: 50px;
  left: 100px;
  z-index: 2;
}

.hero__card--3 {
  top: 100px;
  left: 200px;
  z-index: 1;
}

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

.card__glow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  mix-blend-mode: overlay;
}

.hero__card:hover .card__glow {
  opacity: 0.3;
}

.hero__scroll {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% { opacity: 0; transform: translateY(-10px); }
  50% { opacity: 1; transform: translateY(10px); }
}

/* Section Styles */
section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section__label {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.section__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Projects Section */
.projects {
  background: var(--color-bg-secondary);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.project__card {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.project__image {
  width: 100%;
  height: 100%;
  position: relative;
}

.project__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project__card:hover .project__image img {
  transform: scale(1.05);
}

.project__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.project__card:hover .project__overlay {
  opacity: 1;
  transform: translateY(0);
}

.project__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: white;
  margin-bottom: var(--spacing-xs);
}

.project__category {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.project__link {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  color: var(--color-bg-primary);
  border-radius: 50%;
  font-size: var(--font-size-lg);
  transition: transform var(--transition-base);
}

.project__card:hover .project__link {
  transform: rotate(45deg);
}

.project__card--next {
  background: rgba(99, 102, 241, 0.05);
  border: 2px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.project__next-content {
  text-align: center;
  padding: var(--spacing-xl);
}

.project__next-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: 50%;
  font-size: var(--font-size-3xl);
  color: white;
}

.project__next-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.project__next-text {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* Pricing Section */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.pricing__card {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.pricing__card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.pricing__card--popular {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
  border: 2px solid var(--color-primary);
  transform: scale(1.05);
}

.pricing__card--popular:hover {
  transform: translateY(-8px) scale(1.05);
}

.pricing__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--gradient-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
}

.pricing__header {
  margin-bottom: var(--spacing-lg);
}

.pricing__name {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.pricing__subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.pricing__price {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.pricing__setup {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.pricing__setup-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.pricing__setup-value {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-primary);
}

.pricing__monthly {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-xs);
}

.pricing__monthly-currency {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.pricing__monthly-value {
  font-family: var(--font-display);
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1;
}

.pricing__monthly-period {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.pricing__features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.pricing__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
}

.pricing__feature i {
  color: var(--color-success);
  margin-top: 4px;
  flex-shrink: 0;
}

/* Testimonials Section */
.testimonials {
  background: var(--color-bg-secondary);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.testimonial__card {
  padding: var(--spacing-xl);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.testimonial__card:hover {
  transform: translateY(-8px);
  border-color: var(--color-primary);
}

.testimonial__rating {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.testimonial__rating i {
  color: #fbbf24;
  font-size: var(--font-size-lg);
}

.testimonial__text {
  font-size: var(--font-size-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.testimonial__name {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: 4px;
}

.testimonial__role {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.testimonial__badge {
  margin-left: auto;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: var(--font-size-lg);
}

.testimonial__badge--whatsapp {
  background: #25d366;
  color: white;
}

.testimonial__badge--linkedin {
  background: #0077b5;
  color: white;
}

/* FAQ Section */
.faq__grid {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.faq__item {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq__item:hover {
  border-color: var(--color-primary);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-base);
}

.faq__question:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq__question-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
}

.faq__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.faq__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.4;
}

.faq__toggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.faq__item.active .faq__toggle {
  background: var(--color-primary);
  color: white;
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq__item.active .faq__answer {
  max-height: 500px;
}

.faq__answer p {
  padding: 0 var(--spacing-lg) var(--spacing-lg) calc(var(--spacing-lg) + 48px + var(--spacing-md));
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Footer */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__logo {
  height: 40px;
  width: auto;
  margin-bottom: var(--spacing-md);
}

.footer__tagline {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 400px;
  line-height: 1.7;
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  border-radius: 50%;
  border: 1px solid var(--color-border);
  text-decoration: none;
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
}

.footer__social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.footer__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.footer__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__list a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

.footer__list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.footer__list i {
  color: var(--color-primary);
  width: 20px;
}

.footer__bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

.footer__bottom i {
  color: var(--color-error);
}

/* Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: white;
  border-radius: 50%;
  text-decoration: none;
  font-size: var(--font-size-2xl);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
  animation: pulse-float 2s ease-in-out infinite;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
}

@keyframes pulse-float {
  0%, 100% {
    box-shadow: var(--shadow-lg);
  }
  50% {
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
  }
}

.floating-whatsapp__text {
  position: absolute;
  right: 70px;
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid var(--color-border);
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-base);
  pointer-events: none;
}

.floating-whatsapp:hover .floating-whatsapp__text {
  opacity: 1;
  transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .hero__visual {
    height: 400px;
    display: none;
  }

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

  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .pricing__card--popular {
    transform: scale(1);
  }

  .pricing__card--popular:hover {
    transform: translateY(-8px) scale(1);
  }

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-3xl: 4rem;
  }

  .nav__menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(15, 15, 30, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-2xl);
    border-top: 1px solid var(--color-border);
    transition: left var(--transition-base);
  }

  .nav__menu.active {
    left: 0;
  }

  .nav__toggle {
    display: flex;
  }

  .hero {
    padding: calc(var(--spacing-3xl) + var(--spacing-xl)) 0 var(--spacing-2xl);
  }

  .hero__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
  }

  .hero__stat-number {
    font-size: var(--font-size-2xl);
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .section__title {
    font-size: var(--font-size-3xl);
  }

  .faq__question-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .faq__icon {
    order: -1;
  }

  .faq__answer p {
    padding-left: var(--spacing-lg);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .hero__description {
    font-size: var(--font-size-base);
  }

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

  .section__title {
    font-size: var(--font-size-2xl);
  }

  .project__card {
    aspect-ratio: 3/4;
  }

  .pricing__card {
    padding: var(--spacing-lg);
  }

  .testimonial__card {
    padding: var(--spacing-lg);
  }

  .faq__question {
    padding: var(--spacing-md);
  }

  .faq__title {
    font-size: var(--font-size-base);
  }

  .floating-whatsapp {
    width: 56px;
    height: 56px;
    font-size: var(--font-size-xl);
  }

  .floating-whatsapp__text {
    display: none;
  }
}

/* Utility Classes */
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blur-effect {
  backdrop-filter: blur(20px);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Animation Classes */
.animate-fadeIn {
  animation: fadeIn 0.6s ease-out;
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out;
}

.animate-fadeInDown {
  animation: fadeInDown 0.8s ease-out;
}

.animate-slideInLeft {
  animation: slideInLeft 0.8s ease-out;
}

.animate-slideInRight {
  animation: slideInRight 0.8s ease-out;
}

.animate-scaleIn {
  animation: scaleIn 0.6s ease-out;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
 
}