/* ========================================
   Portfolio Website - Main Stylesheet
   ======================================== */

/* CSS Custom Properties */
:root {
  --primary: #6c63ff;
  --primary-dark: #3f3d99;
  --primary-light: #a89eff;
  --designer-from: #6c63ff;
  --designer-to: #3f3d99;
  --developer-from: #11998e;
  --developer-to: #38ef7d;
  --mentor-from: #f7971e;
  --mentor-to: #ffd200;
  --text-dark: #1a1a2e;
  --text-medium: #4a4a6a;
  --text-light: #8888aa;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f7ff;
  --bg-hero: #f9f8ff;
  --border-color: #e8e8f0;
  --shadow-sm: 0 2px 8px rgba(108,99,255,0.08);
  --shadow-md: 0 8px 30px rgba(108,99,255,0.12);
  --shadow-lg: 0 20px 60px rgba(108,99,255,0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'Nunito', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Dark mode */
[data-theme="dark"] {
  --text-dark: #f0f0ff;
  --text-medium: #b0b0cc;
  --text-light: #7070a0;
  --bg-primary: #0f0f1a;
  --bg-secondary: #16162a;
  --bg-hero: #12122a;
  --border-color: #2a2a40;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--bg-primary);
  line-height: 1.7;
  transition: background 0.3s, color 0.3s;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-dark);
}

/* Container */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}
[data-theme="dark"] .navbar {
  background: rgba(15,15,26,0.95);
}
.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.navbar-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.navbar-logo span { color: var(--text-dark); }
.navbar-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.navbar-menu a {
  color: var(--text-medium);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.navbar-menu a:hover { color: var(--primary); background: var(--bg-secondary); }
.navbar-menu .btn-nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 10px 22px;
  border-radius: 50px;
}
.navbar-menu .btn-nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.navbar-actions { display: flex; align-items: center; gap: 8px; }
.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-secondary);
  color: var(--text-medium);
  font-size: 1.1rem;
  transition: var(--transition);
  cursor: pointer;
}
.theme-toggle:hover { background: var(--primary); color: white; }
.navbar-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  background: transparent;
}
.navbar-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.navbar-burger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar-burger.active span:nth-child(2) { opacity: 0; }
.navbar-burger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========== HERO ========== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-hero);
  padding: 100px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108,99,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(17,153,142,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}
.hero-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(108,99,255,0.3);
  animation: float 3s ease-in-out infinite;
}
.hero-avatar img { width: 100%; height: 100%; object-fit: cover; }
.hero-avatar .avatar-placeholder {
  font-size: 3rem;
  font-weight: 900;
  color: white;
  font-family: var(--font-heading);
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  color: var(--text-dark);
  margin-bottom: 20px;
  letter-spacing: -1px;
  line-height: 1.15;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--designer-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--text-medium);
  max-width: 560px;
  margin: 0 auto 40px;
  font-style: italic;
  font-weight: 400;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.hero-devices {
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.9;
}
.hero-scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}
.hero-scroll-indicator span {
  display: block;
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--primary), transparent);
  margin: 0 auto;
  border-radius: 2px;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  font-family: var(--font-heading);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  border: none;
}
.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 15px rgba(108,99,255,0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108,99,255,0.4);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(108,99,255,0.3);
}
.btn-white {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  color: var(--primary-dark);
}
.btn-sm { padding: 10px 22px; font-size: 0.875rem; }
.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-icon { width: 48px; height: 48px; padding: 0; border-radius: 50%; }

/* ========== SECTION COMMON ========== */
.section {
  padding: 100px 0;
}
.section-sm { padding: 70px 0; }
.section-bg { background: var(--bg-secondary); }
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.2;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-medium);
  max-width: 700px;
  line-height: 1.8;
}
.section-header { margin-bottom: 60px; }
.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }

/* ========== ABOUT SECTION ========== */
.about-section { background: var(--bg-primary); }
.about-inner { max-width: 820px; margin: 0 auto; text-align: center; }
.about-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 900;
  margin-bottom: 28px;
}
.about-text {
  font-size: 1.15rem;
  color: var(--text-medium);
  line-height: 1.9;
  margin-bottom: 20px;
}
.about-highlights {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.about-stat { text-align: center; }
.about-stat .stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  font-family: var(--font-heading);
  display: block;
  line-height: 1;
}
.about-stat .stat-label {
  font-size: 0.875rem;
  color: var(--text-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
}

/* ========== SKILLS / SERVICES ========== */
.skills-section { background: var(--bg-secondary); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.skill-card {
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}
.skill-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.skill-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.skill-card.designer { background: linear-gradient(135deg, #6c63ff 0%, #3f3d99 100%); }
.skill-card.developer { background: linear-gradient(135deg, #11998e 0%, #2ecc87 100%); }
.skill-card.mentor { background: linear-gradient(135deg, #f7971e 0%, #f7ca47 100%); }
.skill-icon {
  width: 70px;
  height: 70px;
  background: rgba(255,255,255,0.2);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 2rem;
}
.skill-title {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 16px;
  color: white;
}
.skill-desc {
  font-size: 0.95rem;
  opacity: 0.9;
  margin-bottom: 28px;
  line-height: 1.7;
}
.skill-subtitle-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: 0.75;
  font-weight: 700;
  margin-bottom: 6px;
}
.skill-subtitle-items {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 28px;
}
.skill-tools-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: 0.7;
  font-weight: 700;
  margin-bottom: 14px;
}
.skill-tools-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.skill-tools-list li {
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* ========== PROJECTS ========== */
.projects-section { background: var(--bg-primary); }
.projects-filter {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 50px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-medium);
  background: var(--bg-secondary);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  position: relative;
  group: true;
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.project-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-secondary), var(--border-color));
}
.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-image img { transform: scale(1.05); }
.project-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(108,99,255,0.9) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 24px;
}
.project-card:hover .project-overlay { opacity: 1; }
.project-overlay-content { color: white; }
.project-overlay-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: white;
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  background: rgba(255,255,255,0.2);
  padding: 8px 16px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.4);
  transition: var(--transition);
}
.project-overlay-link:hover { background: white; color: var(--primary); }
.project-body { padding: 24px; }
.project-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.project-desc {
  font-size: 0.875rem;
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 16px;
}
.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.project-badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  background: rgba(108,99,255,0.1);
  padding: 4px 12px;
  border-radius: 50px;
}
.projects-cta { text-align: center; margin-top: 50px; }

/* ========== COMPANIES ========== */
.companies-section { background: var(--bg-secondary); }
.companies-label { text-align: center; margin-bottom: 40px; }
.companies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 24px;
  align-items: center;
  justify-items: center;
}
.company-item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  padding: 0 16px;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: var(--transition);
  cursor: pointer;
}
.company-item:hover { opacity: 1; filter: grayscale(0%); transform: scale(1.05); }
.company-item img { max-height: 40px; max-width: 120px; object-fit: contain; }
.company-name-text {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-dark);
  font-family: var(--font-heading);
  white-space: nowrap;
}

/* ========== STARTUPS ========== */
.startups-section { background: var(--bg-primary); }
.startups-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.startup-card {
  padding: 32px 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.startup-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.startup-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.startup-card:hover::before { transform: scaleX(1); }
.startup-logo {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}
.startup-logo img { width: 100%; height: 100%; object-fit: cover; }
.startup-logo-placeholder {
  font-size: 1.5rem;
  font-weight: 900;
  color: white;
  font-family: var(--font-heading);
}
.startup-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-dark);
}
.startup-desc {
  font-size: 0.875rem;
  color: var(--text-medium);
  line-height: 1.6;
  flex: 1;
}
.startup-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
}
.startup-status {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
}
.startup-status.active { background: rgba(17,153,142,0.1); color: #11998e; }
.startup-status.on-hold { background: rgba(247,151,30,0.1); color: #f7971e; }
.startup-status.exited { background: rgba(108,99,255,0.1); color: var(--primary); }
.startup-status.acquired { background: rgba(56,239,125,0.1); color: #2ecc87; }
.startup-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}
.startup-link:hover { color: var(--primary-dark); text-decoration: underline; }

/* ========== CTA SECTIONS ========== */
.collab-cta-section {
  padding: 100px 0;
  text-align: center;
  background: var(--bg-secondary);
}
.collab-cta-section .section-title { margin-bottom: 12px; }
.collab-cta-section .section-subtitle { margin: 0 auto 36px; max-width: 550px; }

.project-cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.project-cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}
.project-cta-section .cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: white;
  font-weight: 900;
  margin-bottom: 16px;
}
.project-cta-section .cta-subtitle {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.coffee-note {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  margin-top: 16px;
}

/* ========== TESTIMONIALS ========== */
.testimonials-section { background: var(--bg-primary); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.testimonial-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px;
  position: relative;
  transition: var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.testimonial-quote-icon {
  font-size: 3rem;
  line-height: 1;
  color: var(--primary);
  opacity: 0.3;
  position: absolute;
  top: 24px;
  right: 28px;
  font-family: Georgia, serif;
}
.testimonial-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 20px;
  color: #ffd200;
  font-size: 1rem;
}
.testimonial-quote {
  font-size: 1rem;
  color: var(--text-medium);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 28px;
}
.testimonial-author { display: flex; align-items: center; gap: 16px; }
.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: white;
  font-size: 1.2rem;
}
.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }
.testimonial-name {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--text-dark);
}
.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ========== CONTACT PAGE ========== */
.contact-section { background: var(--bg-primary); padding-top: 120px; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 { font-size: 2rem; margin-bottom: 20px; }
.contact-info p { color: var(--text-medium); line-height: 1.8; margin-bottom: 32px; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}
.contact-detail-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(108,99,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-detail-text strong { display: block; font-size: 0.875rem; font-weight: 700; color: var(--text-dark); }
.contact-detail-text span { font-size: 0.875rem; color: var(--text-medium); }

/* ========== FORMS ========== */
.form-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.form-group { margin-bottom: 24px; }
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-dark);
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(108,99,255,0.1); }
.form-control::placeholder { color: var(--text-light); }
textarea.form-control { resize: vertical; min-height: 140px; }
select.form-control { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-error { color: #e74c3c; font-size: 0.8rem; margin-top: 4px; }
.form-success {
  background: rgba(17,153,142,0.1);
  border: 1px solid rgba(17,153,142,0.3);
  color: #11998e;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-bottom: 24px;
}
.form-error-banner {
  background: rgba(231,76,60,0.1);
  border: 1px solid rgba(231,76,60,0.3);
  color: #e74c3c;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

/* ========== MENTORSHIP PAGE ========== */
.mentorship-hero {
  padding: 140px 0 100px;
  background: linear-gradient(135deg, #f8f7ff 0%, #fff5e6 100%);
  text-align: center;
}
.mentorship-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 60px 0;
}
.mentorship-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.mentorship-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.mentorship-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.mentorship-stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary);
  display: block;
}
.mentorship-stat-label {
  font-size: 0.875rem;
  color: var(--text-medium);
  font-weight: 600;
}
.mentor-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--text-dark);
  padding: 60px 0 40px;
  text-align: center;
}
[data-theme="dark"] .footer {
  background: #08080f;
}
.footer-logo {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 900;
  color: white;
  margin-bottom: 12px;
}
.footer-tagline {
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
  margin-bottom: 32px;
}
.footer-social {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.footer-social a {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-3px);
}
.footer-nav {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.footer-nav a {
  color: rgba(255,255,255,0.6);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}
.footer-nav a:hover { color: white; }
.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin: 32px 0;
}
.footer-bottom {
  color: rgba(255,255,255,0.4);
  font-size: 0.8rem;
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: white; }

/* ========== NOTIFICATION TOAST ========== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.toast {
  background: var(--text-dark);
  color: white;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  animation: slideInRight 0.3s ease;
  max-width: 320px;
}
.toast.success { background: #11998e; }
.toast.error { background: #e74c3c; }
@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ========== BACK TO TOP ========== */
.back-to-top {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  box-shadow: var(--shadow-sm);
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); background: var(--primary-dark); }

/* ========== SCROLL ANIMATIONS ========== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in-left.visible { opacity: 1; transform: translateX(0); }
.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in-right.visible { opacity: 1; transform: translateX(0); }
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }

/* ========== MOBILE RESPONSIVE ========== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 24px;
  z-index: 999;
  box-shadow: var(--shadow-md);
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  color: var(--text-medium);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition);
}
.mobile-menu a:hover { background: var(--bg-secondary); color: var(--primary); }
.mobile-menu .btn { text-align: center; margin-top: 8px; }

/* ========== PAGE LOADER ========== */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s, visibility 0.5s;
}
.page-loader.hidden { opacity: 0; visibility: hidden; }
.loader-inner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ========== UTILITIES ========== */
.text-primary { color: var(--primary) !important; }
.text-medium { color: var(--text-medium) !important; }
.text-light { color: var(--text-light) !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.w-full { width: 100%; }
.position-relative { position: relative; }
.overflow-hidden { overflow: hidden; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .skills-grid, .projects-grid, .startups-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .mentor-stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .navbar-menu { display: none; }
  .navbar-burger { display: flex; }
  .section { padding: 70px 0; }
  .skills-grid, .projects-grid, .startups-grid, .testimonials-grid, .mentorship-grid, .mentor-stats-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .about-highlights { gap: 32px; }
  .skill-card { padding: 36px 24px; }
  .form-card { padding: 28px 24px; }
  .footer-social { gap: 8px; }
  .companies-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .companies-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ========== PRINT ========== */
@media print {
  .navbar, .footer-social, .back-to-top, .theme-toggle { display: none; }
  .section { padding: 40px 0; }
  * { box-shadow: none !important; }
}