/* =====================================================
   SOPHISTICATED ACADEMIC DESIGN SYSTEM
   For OJS Setup & Academic Services Platform
   Dark, Professional, Trustworthy
===================================================== */
:root {
  /* Primary Palette - Deep Academic Navy & Slate */
  --primary: #1e293b;              /* Rich Slate - professional & authoritative */
  --primary-dark: #0f172a;         /* Deep Navy - serious & trustworthy */
  --primary-light: #334155;        /* Medium Slate */
  
  /* Secondary Palette - Sophisticated Blues */
  --secondary: #1e40af;            /* Academic Blue - traditional yet modern */
  --secondary-dark: #1e3a8a;       /* Deep Royal Blue */
  --secondary-light: #3b82f6;      /* Bright Blue untuk accents */
  
  /* Accent Colors - Subtle & Professional */
  --accent-emerald: #059669;       /* Deep Emerald - growth & success */
  --accent-amber: #d97706;         /* Warm Amber - highlight & CTA */
  --accent-teal: #0d9488;          /* Professional Teal */
  
  /* Neutral Palette - Rich & Layered */
  --dark: #0f172a;                 /* Deep Navy Black */
  --dark-slate: #1e293b;           /* Dark Slate */
  --medium-slate: #334155;         /* Medium Slate */
  --gray: #64748b;                 /* Neutral Gray */
  --light-gray: #94a3b8;           /* Light Gray untuk text */
  --lighter-gray: #cbd5e1;         /* Very light gray */
  --off-white: #f1f5f9;            /* Off White background */
  --white: #ffffff;                /* Pure white */
  
  /* Background Shades - Layered Depth */
  --bg-primary: #0f172a;           /* Dark primary background */
  --bg-secondary: #1e293b;         /* Dark secondary */
  --bg-tertiary: #334155;          /* Medium layer */
  --bg-light: #f8fafc;             /* Light sections */
  --bg-accent: #f1f5f9;            /* Very light accent */
  
  /* Gradients - Sophisticated & Subtle */
  --gradient-primary: linear-gradient(135deg, #1e293b 0%, #1e40af 100%);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  --gradient-blue: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
  --gradient-accent: linear-gradient(135deg, #059669 0%, #0d9488 100%);
  --gradient-warm: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
  
  /* Shadows - Deep & Realistic */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2), 0 4px 6px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.3), 0 10px 20px rgba(0, 0, 0, 0.18);
  --shadow-glow: 0 0 20px rgba(30, 64, 175, 0.15);
  
  /* Spacing System */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Typography Scale */
  --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: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* =====================================================
   GLOBAL STYLES
===================================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--light-gray);
  background: var(--bg-primary);
  overflow-x: hidden;
  font-size: var(--font-size-base);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--white);
}

p {
  line-height: 1.75;
}

a, button, input, textarea, select {
  outline: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--secondary-light);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

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

section {
  padding: var(--space-3xl) var(--space-xl);
  max-width: 1400px;
  margin: auto;
}

/* =====================================================
   HEADER & NAVIGATION
===================================================== */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

header.scrolled {
  background: rgba(15, 23, 42, 0.95);
  box-shadow: var(--shadow-lg);
  border-bottom-color: transparent;
}

nav {
  max-width: 1400px;
  margin: auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 900;
  font-size: var(--font-size-2xl);
  color: var(--white);
  letter-spacing: -0.025em;
  transition: all var(--transition-base);
  position: relative;
}

.logo::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 40%;
  height: 3px;
  background: var(--gradient-blue);
  border-radius: var(--radius-full);
}

.logo:hover {
  color: var(--secondary-light);
  transform: translateX(2px);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-links a {
  color: var(--light-gray);
  font-weight: 500;
  font-size: var(--font-size-sm);
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-base);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--secondary-light);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: var(--space-sm) var(--space-lg);
  background: var(--gradient-blue);
  color: var(--white) !important;
  border-radius: var(--radius-full);
  font-weight: 600;
  box-shadow: var(--shadow-md), var(--shadow-glow);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.nav-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nav-cta:hover::before {
  opacity: 1;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.nav-cta:active {
  transform: translateY(0);
}

.nav-cta::after {
  display: none;
}

/* =====================================================
   MOBILE MENU
===================================================== */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.mobile-menu:hover {
  background: var(--bg-secondary);
}

.mobile-menu span {
  width: 24px;
  height: 2.5px;
  background: var(--white);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

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

.mobile-menu.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(20px);
}

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

.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--bg-primary);
  padding: var(--space-3xl) var(--space-lg);
  transition: right var(--transition-slow);
  z-index: var(--z-modal);
  box-shadow: var(--shadow-2xl);
  border-left: 1px solid var(--medium-slate);
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-nav a {
  color: var(--light-gray);
  font-size: var(--font-size-lg);
  font-weight: 600;
  padding: var(--space-sm);
  display: block;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
}

.mobile-nav a:hover {
  background: var(--bg-secondary);
  color: var(--white);
  padding-left: var(--space-md);
  border-left-color: var(--secondary-light);
}

.mobile-cta {
  display: inline-block;
  margin-top: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-full);
  background: var(--gradient-blue);
  color: var(--white) !important;
  text-align: center;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.85);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-modal-backdrop);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

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

/* =====================================================
   HERO SECTION
===================================================== */
.hero {
  width: 100%;
  max-width: none;
  margin: 0;
  padding-top: 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
  padding-bottom: var(--space-3xl);
  position: relative;
  overflow: hidden;
  background: var(--gradient-dark);
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(30, 64, 175, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s infinite ease-in-out;
  will-change: transform;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(5, 150, 105, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s infinite ease-in-out reverse;
  will-change: transform;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(40px, 40px) scale(1.05);
  }
}

.hero-content {
  width: 100%;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(30, 64, 175, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(30, 64, 175, 0.3);
  border-radius: var(--radius-full);
  color: var(--secondary-light);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.hero-badge:hover {
  transform: scale(1.03);
  background: rgba(30, 64, 175, 0.2);
  border-color: var(--secondary-light);
}

.hero h1 {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
  color: var(--white);
}

.hero h1 span {
  background: var(--gradient-blue);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  display: inline-block;
}

.hero h1 span::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-blue);
  opacity: 0.3;
  border-radius: var(--radius-full);
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--light-gray);
  margin-bottom: var(--space-xl);
  line-height: 1.75;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.hero-visual {
  position: relative;
  margin-top: var(--space-xl);
}

.hero-card {
  background: rgba(30, 41, 59, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(51, 65, 85, 0.5);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-2xl);
  transition: all var(--transition-slow);
}

.hero-card:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--shadow-2xl), var(--shadow-glow);
}

/* =====================================================
   BUTTONS
===================================================== */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-width: 140px;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn:hover::before {
  opacity: 1;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(51, 65, 85, 0.5);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(148, 163, 184, 0.3);
  color: var(--white);
}

.btn-secondary:hover {
  background: rgba(51, 65, 85, 0.7);
  border-color: var(--secondary-light);
  transform: translateY(-3px);
}

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

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn-outline-white {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: var(--white);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-3px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* =====================================================
   SECTION HEADERS
===================================================== */
.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
}

.section-badge {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  background: rgba(30, 64, 175, 0.1);
  border: 1px solid rgba(30, 64, 175, 0.3);
  color: var(--secondary-light);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 700;
  margin-bottom: var(--space-md);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all var(--transition-base);
}

.section-badge:hover {
  transform: scale(1.05);
  border-color: var(--secondary-light);
  background: rgba(30, 64, 175, 0.15);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--white);
}

.section-desc {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--light-gray);
  line-height: 1.75;
  max-width: 650px;
  margin: 0 auto;
}

/* =====================================================
   SERVICES - Professional Cards
===================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--bg-secondary);
  border: 1px solid var(--medium-slate);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--secondary-light);
  background: rgba(30, 41, 59, 0.8);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 72px;
  height: 72px;
  background: rgba(30, 64, 175, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--space-lg);
  position: relative;
  border: 1px solid rgba(30, 64, 175, 0.3);
  transition: all var(--transition-slow);
  color: var(--secondary-light);
}

.service-card:hover .service-icon {
  background: var(--gradient-blue);
  border-color: transparent;
  transform: scale(1.08);
  color: var(--white);
  box-shadow: var(--shadow-glow);
}

.service-card h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
  font-weight: 700;
  color: var(--white);
}

.service-card p {
  color: var(--light-gray);
  line-height: 1.75;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.service-features {
  list-style: none;
  margin-top: var(--space-md);
}

.service-features li {
  padding: var(--space-sm) 0;
  color: var(--light-gray);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.service-features li::before {
  content: '✓';
  color: var(--accent-emerald);
  font-weight: 700;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 2px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--secondary-light);
  font-weight: 600;
  margin-top: var(--space-md);
  transition: gap var(--transition-base);
  font-size: var(--font-size-sm);
}

.service-link:hover {
  gap: var(--space-sm);
  color: var(--white);
}

.service-link::after {
  content: '→';
  transition: transform var(--transition-base);
}

.service-link:hover::after {
  transform: translateX(4px);
}

/* =====================================================
   LIGHT SECTIONS - Contrast for Content
===================================================== */
.section-light {
  background: var(--bg-light);
}

.section-light .section-title,
.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4 {
  color: var(--primary-dark);
}

.section-light .section-desc,
.section-light p {
  color: var(--gray);
}

.section-light .section-badge {
  background: rgba(30, 64, 175, 0.08);
  border-color: rgba(30, 64, 175, 0.2);
  color: var(--secondary);
}

.section-light .service-card {
  background: var(--white);
  border-color: var(--lighter-gray);
}

.section-light .service-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-xl);
}

.section-light .service-card h3 {
  color: var(--primary-dark);
}

.section-light .service-card p {
  color: var(--gray);
}

.section-light .service-features li {
  color: var(--gray);
}

/* =====================================================
   PORTFOLIO
===================================================== */
#portfolio {
  background: var(--bg-secondary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--space-xl);
}

.portfolio-item {
  border: 1px solid var(--medium-slate);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  background: var(--bg-primary);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--secondary-light);
}

.portfolio-image {
  background: var(--gradient-dark);
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
  opacity: 0.9;
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.05);
  opacity: 1;
}

.portfolio-content {
  padding: var(--space-lg);
}

.portfolio-content h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
  color: var(--white);
}

.portfolio-content p {
  color: var(--light-gray);
  font-size: var(--font-size-sm);
}

/* =====================================================
   PROCESS
===================================================== */
#process {
  background: var(--bg-primary);
  position: relative;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--space-xl);
  position: relative;
  z-index: 1;
}

.process-step {
  text-align: center;
  position: relative;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--medium-slate);
  transition: all var(--transition-base);
}

.process-step:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--secondary-light);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.process-number {
  width: 72px;
  height: 72px;
  background: var(--gradient-blue);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  margin: 0 auto var(--space-md);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transition: all var(--transition-base);
}

.process-step:hover .process-number {
  transform: scale(1.1) rotate(360deg);
}

.process-step h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  font-weight: 700;
  color: var(--white);
}

.process-step p {
  color: var(--light-gray);
  line-height: 1.75;
  font-size: var(--font-size-sm);
}

/* =====================================================
   TESTIMONIALS
===================================================== */
#testimonials {
  background: var(--bg-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--space-xl);
}

.testimonial-card {
  border: 1px solid var(--lighter-gray);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  background: var(--white);
  transition: all var(--transition-base);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  font-size: 4rem;
  color: var(--secondary);
  opacity: 0.1;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: var(--secondary-light);
}

.stars {
  color: var(--accent-amber);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

.testimonial-text {
  font-style: italic;
  line-height: 1.75;
  color: var(--gray);
  margin-bottom: var(--space-md);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-blue);
  border: 2px solid var(--secondary-light);
}

.author-info h4 {
  font-size: var(--font-size-base);
  margin-bottom: 2px;
  color: var(--primary-dark);
}

.author-info p {
  font-size: var(--font-size-sm);
  color: var(--gray);
}

/* =====================================================
   METRICS
===================================================== */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: var(--space-lg);
}

.metric-item {
  background: var(--bg-secondary);
  border: 1px solid var(--medium-slate);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.metric-item:hover {
  background: rgba(30, 41, 59, 0.8);
  border-color: var(--secondary-light);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.metric-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--white);
  margin-bottom: var(--space-xs);
  line-height: 1;
}

.metric-label {
  color: var(--light-gray);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

/* =====================================================
   CTA SECTION
===================================================== */
#cta {
  width: 100%;
  max-width: none;
  margin: 0;
  background: var(--gradient-dark);
  color: var(--white);
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--medium-slate);
  border-bottom: 1px solid var(--medium-slate);
}

#cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(30, 64, 175, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  max-width: 800px;
  margin: auto;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.cta-content p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--light-gray);
  margin-bottom: var(--space-xl);
  line-height: 1.75;
}

.cta-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* =====================================================
   FOOTER
===================================================== */
footer {
  background: var(--bg-primary);
  color: var(--light-gray);
  padding: var(--space-3xl) var(--space-lg) var(--space-lg);
  border-top: 1px solid var(--medium-slate);
}

.footer-content {
  width: 100%;
  max-width: 1400px;
  margin: auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-xl);
}

.footer-brand {
  max-width: 350px;
}

.footer-logo {
  font-weight: 800;
  font-size: var(--font-size-2xl);
  color: var(--white);
  margin-bottom: var(--space-md);
  display: inline-block;
  position: relative;
}

.footer-logo::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 40%;
  height: 3px;
  background: var(--gradient-blue);
  border-radius: var(--radius-full);
}

.footer-brand p {
  line-height: 1.75;
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
}

.social-links {
  display: flex;
  gap: var(--space-sm);
}

.social-links a {
  width: 44px;
  height: 44px;
  background: var(--bg-secondary);
  border: 1px solid var(--medium-slate);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  font-size: var(--font-size-lg);
  color: var(--light-gray);
}

.social-links a:hover {
  background: var(--gradient-blue);
  border-color: transparent;
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  transition: all var(--transition-base);
  font-size: var(--font-size-sm);
  display: inline-block;
  color: var(--light-gray);
}

.footer-links a:hover {
  color: var(--white);
  padding-left: var(--space-xs);
}

.footer-bottom {
  max-width: 1400px;
  margin: auto;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--medium-slate);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--gray);
}

/* =====================================================
   RESPONSIVE DESIGN
===================================================== */
@media (max-width: 1024px) {
  :root {
    --space-3xl: 4rem;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 3rem;
    --space-xl: 2rem;
  }

  nav {
    padding: var(--space-sm) var(--space-md);
  }

  .nav-links {
    display: none;
  }

  .mobile-menu {
    display: flex;
  }

  section {
    padding: var(--space-3xl) var(--space-md);
  }

  .hero {
    padding: var(--space-md);
    padding-top: 100px;
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .btn {
    width: 100%;
  }

  .hero-buttons,
  .cta-buttons {
    flex-direction: column;
  }

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

@media (max-width: 480px) {
  .metrics {
    grid-template-columns: 1fr;
  }
}

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

@media (prefers-contrast: high) {
  :root {
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.7);
  }
}

@media print {
  header,
  .mobile-menu,
  .mobile-nav,
  .mobile-overlay,
  #cta,
  footer {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}
/* =====================================================
   SERVICE CARDS - FIXED SPACING CONSISTENCY
===================================================== */

/* Service Grid Container */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 350px), 1fr));
  gap: var(--space-xl); /* 3rem - Konsisten antar cards */
  align-items: stretch; /* Semua card sama tinggi */
}

/* Service Card - Controlled Layout */
.service-card {
  background: var(--bg-secondary);
  border: 1px solid var(--medium-slate);
  border-radius: var(--radius-lg);
  padding: var(--space-xl); /* 3rem - Padding sama semua sisi */
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
  
  /* PENTING: Flexbox untuk kontrol spacing */
  display: flex;
  flex-direction: column;
  gap: 0; /* Kita kontrol manual pakai margin */
  height: 100%; /* Full height untuk alignment */
}

/* Top Border Accent */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--secondary-light);
  background: rgba(30, 41, 59, 0.8);
}

.service-card:hover::before {
  transform: scaleX(1);
}

/* =====================================================
   SPACING SYSTEM - KONSISTEN & TERUKUR
===================================================== */

/* 1. ICON - Fixed Size & Spacing */
.service-icon {
  width: 72px;
  height: 72px;
  background: rgba(30, 64, 175, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--space-lg); /* 2rem - FIXED */
  position: relative;
  border: 1px solid rgba(30, 64, 175, 0.3);
  transition: all var(--transition-slow);
  color: var(--secondary-light);
  flex-shrink: 0; /* Jangan mengecil */
}

.service-card:hover .service-icon {
  background: var(--gradient-blue);
  border-color: transparent;
  transform: scale(1.08);
  color: var(--white);
  box-shadow: var(--shadow-glow);
}

/* 2. HEADING - Fixed Spacing */
.service-card h3 {
  font-size: var(--font-size-2xl); /* 1.5rem */
  margin-bottom: var(--space-md); /* 1.5rem - FIXED */
  font-weight: 700;
  color: var(--white);
  line-height: 1.3; /* Konsisten line height */
  flex-shrink: 0; /* Jangan mengecil */
}

/* 3. DESCRIPTION - Controlled Growth */
.service-card p {
  color: var(--light-gray);
  line-height: 1.75;
  margin-bottom: var(--space-lg); /* 2rem - FIXED */
  font-size: var(--font-size-base); /* 1rem */
  flex-grow: 0; /* JANGAN auto-grow */
  flex-shrink: 0; /* JANGAN shrink */
}

/* 4. FEATURES LIST - Fixed Spacing */
.service-features {
  list-style: none;
  margin-top: auto; /* Push ke bawah jika ada space */
  margin-bottom: var(--space-md); /* 1.5rem - FIXED */
  flex-shrink: 0;
}

.service-features li {
  padding: var(--space-xs) 0; /* 0.5rem top/bottom - FIXED */
  color: var(--light-gray);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm); /* 1rem - FIXED */
  font-size: var(--font-size-sm);
  line-height: 1.6;
  margin-bottom: var(--space-xs); /* 0.5rem - FIXED */
}

.service-features li:last-child {
  margin-bottom: 0; /* Hilangkan margin terakhir */
}

.service-features li::before {
  content: '✓';
  color: var(--accent-emerald);
  font-weight: 700;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 2px; /* Align dengan text */
  width: 20px; /* Fixed width untuk alignment */
  text-align: center;
}

/* 5. LINK - Always at Bottom */
.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--secondary-light);
  font-weight: 600;
  margin-top: var(--space-md); /* 1.5rem - FIXED */
  transition: gap var(--transition-base);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.service-link:hover {
  gap: var(--space-sm);
  color: var(--white);
}

.service-link::after {
  content: '→';
  transition: transform var(--transition-base);
}

.service-link:hover::after {
  transform: translateX(4px);
}

/* =====================================================
   ALTERNATIVE: EXACT SAME HEIGHT CARDS
===================================================== */

/* Jika Anda ingin SEMUA card PERSIS sama tinggi: */
.service-card-exact-height {
  min-height: 480px; /* Set minimum height */
  display: flex;
  flex-direction: column;
}

.service-card-exact-height p {
  flex-grow: 1; /* Biarkan description mengisi space */
  margin-bottom: var(--space-lg);
}

.service-card-exact-height .service-features {
  margin-top: auto; /* Push list ke bawah */
}

/* =====================================================
   DEBUGGING - Tampilkan Border untuk Check Spacing
===================================================== */

/* Uncomment untuk debugging spacing issues */
/*
.service-card * {
  outline: 1px solid rgba(255, 0, 0, 0.2);
}

.service-icon { outline-color: rgba(255, 255, 0, 0.3); }
.service-card h3 { outline-color: rgba(0, 255, 0, 0.3); }
.service-card p { outline-color: rgba(0, 255, 255, 0.3); }
.service-features { outline-color: rgba(255, 0, 255, 0.3); }
.service-link { outline-color: rgba(255, 128, 0, 0.3); }
*/

/* =====================================================
   RESPONSIVE - Maintain Consistency
===================================================== */

@media (max-width: 768px) {
  .service-card {
    padding: var(--space-lg); /* Smaller padding di mobile */
  }
  
  .service-icon {
    width: 64px;
    height: 64px;
    font-size: 1.75rem;
    margin-bottom: var(--space-md); /* Consistent spacing */
  }
  
  .service-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
  }
  
  .service-card p {
    margin-bottom: var(--space-md);
  }
  
  .service-features {
    margin-bottom: var(--space-sm);
  }
  
  .service-link {
    margin-top: var(--space-sm);
  }
}
/* Tambahan */
.service-card {
  background: rgba(255, 255, 255, 0.02); /* Lebih transparan */
  border: 1px solid rgba(255, 255, 255, 0.08); /* Border tipis elegan */
  padding: var(--space-xl); /* Spacing lebih lega */
  border-radius: 4px; /* Sudut lebih tajam (lebih serius/akademis) */
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  position: relative;
  overflow: hidden;
}

/* Efek Hover yang "Mahal" tanpa Ikon */
.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--secondary-light); /* Border menyala saat hover */
  background: rgba(30, 64, 175, 0.05); /* Tint biru sangat halus */
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

/* Mempercantik Judul karena tidak ada Ikon */
.service-card h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--light);
  letter-spacing: -0.02em; /* Membuat headline lebih padat & modern */
  border-left: 3px solid var(--secondary); /* Aksen garis di kiri judul */
  padding-left: 1rem;
}
:root {
  /* Tambahkan variabel border radius agar mudah diatur satu pintu */
  --radius-lg: 16px; 
  --radius-md: 12px;
  --radius-sm: 8px;
}

/* Update pada Service Card */
.service-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-xl);
  
  /* MENGGANTI SUDUT TAJAM */
  border-radius: var(--radius-lg); 
  
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Update pada Tombol (CTA) agar senada */
.nav-cta, .btn {
  border-radius: var(--radius-sm); /* Tombol biasanya lebih manis dengan radius lebih kecil sedikit */
  padding: 12px 24px;
}

/* Update pada Mobile Nav agar terlihat seperti card yang melayang */
@media (max-width: 768px) {
  #mobileNav {
    border-radius: 0 0 0 var(--radius-lg); /* Tumpul hanya di pojok kiri bawah */
  }
}
:root {
  /* Border Radius: Rahasia agar tidak kaku */
  --radius-md: 12px;
  --radius-sm: 8px;
  
  /* Palette yang sedikit lebih 'soft' */
  --primary-light: #334155;
  --secondary: #2563eb; /* Biru yang lebih modern & aktif */
}

/* Service Card yang lebih 'Approachable' */
.service-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08); /* Border sangat tipis */
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--secondary-light);
  transform: translateY(-4px); /* Efek melayang yang halus */
}

/* Tombol yang mengundang klik */
.btn.primary, .nav-cta {
  background: var(--secondary);
  color: white;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-weight: 500;
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.3); /* Glow halus agar terlihat modern */
}

.btn.primary:hover, .nav-cta:hover {
  background: var(--secondary-light);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* Typography perbaikan kontras */
p {
  color: #94a3b8; /* Slate gray agar tidak terlalu putih tajam */
  line-height: 1.6;
}

h1, h2, h3 {
  letter-spacing: -0.01em; /* Membuat teks terlihat lebih premium & rapi */
}
/* =====================================================
   TIPS PENGGUNAAN HTML
===================================================== */

/*
STRUKTUR HTML YANG BENAR:

<div class="services-grid">
  <div class="service-card">
    <div class="service-icon">🎨</div>
    <h3>Judul Service</h3>
    <p>Deskripsi service yang panjangnya bisa berbeda-beda tapi spacing tetap konsisten karena kita sudah set fixed margin.</p>
    <ul class="service-features">
      <li>Fitur pertama</li>
      <li>Fitur kedua</li>
      <li>Fitur ketiga</li>
    </ul>
    <a href="#" class="service-link">Learn More</a>
  </div>
  
  <div class="service-card">
    <!-- Sama seperti di atas -->
  </div>
</div>

PENTING:
1. Jangan tambah wrapper div di dalam .service-card
2. Urutan elemen harus sama persis
3. Jangan pakai margin tambahan di elemen lain
4. Pakai class yang sudah disediakan
*/