/* ===================================================
   PORTFOLIO — STYLE.CSS
   Sai Vyshnavi Kalluri
   =================================================== */

/* ——— CSS VARIABLES ——— */
:root {
  /* Colors - Light Mode (Charcoal + Blue-Violet) */
  --bg:            #e8e9f0;
  --bg-alt:        #dddee8;
  --surface:       #f2f3f8;
  --surface-2:     #e2e4ed;
  --border:        rgba(80,70,140,0.12);
  --text:          #16141f;
  --text-2:        #3d3a52;
  --text-3:        #7a778f;
  --accent:        #6c5ce7;
  --accent-2:      #a29bfe;
  --accent-light:  rgba(108,92,231,0.12);
  --accent-2-light:rgba(162,155,254,0.12);
  --shadow-sm:     0 2px 8px rgba(60,50,120,0.08);
  --shadow-md:     0 8px 28px rgba(60,50,120,0.14);
  --shadow-lg:     0 20px 60px rgba(60,50,120,0.18);
  --radius-sm:     8px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --transition:    0.3s cubic-bezier(0.4,0,0.2,1);
  --font-display:  'Cormorant Garamond', serif;
  --font-body:     'Outfit', sans-serif;
  --font-mono:     'DM Mono', monospace;
}

[data-theme="dark"] {
  --bg:            #0d0c14;
  --bg-alt:        #12101c;
  --surface:       #1a1826;
  --surface-2:     #211f30;
  --border:        rgba(162,155,254,0.10);
  --text:          #eeedf5;
  --text-2:        #b0adc8;
  --text-3:        #6e6b85;
  --accent:        #a29bfe;
  --accent-2:      #6c5ce7;
  --accent-light:  rgba(162,155,254,0.13);
  --accent-2-light:rgba(108,92,231,0.13);
  --shadow-sm:     0 2px 8px rgba(0,0,0,0.40);
  --shadow-md:     0 8px 28px rgba(0,0,0,0.50);
  --shadow-lg:     0 20px 60px rgba(0,0,0,0.60);
}

/* ——— 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);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  cursor: none;
}

@media (max-width: 768px) { body { cursor: auto; } }

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: none; font-family: var(--font-body); border: none; background: none; }
@media (max-width: 768px) { button { cursor: pointer; } }

strong { font-weight: 600; color: var(--accent); }

section {
  padding: 100px 0;
}

.section-container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ——— SCROLL PROGRESS ——— */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ——— CUSTOM CURSOR ——— */
#cursor {
  position: fixed;
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: width 0.2s, height 0.2s, background 0.2s, border-color 0.2s;
  mix-blend-mode: normal;
}

#cursor-dot {
  position: fixed;
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  transition: transform 0.05s;
}

/* ——— SECTION HEADER ——— */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  padding: 4px 12px;
  background: var(--accent-light);
  border-radius: 100px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
}

.section-title em {
  font-style: italic;
  color: var(--accent);
}

/* ——— NAVBAR ——— */
#navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 48px;
  z-index: 1000;
  transition: background var(--transition), padding var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

#navbar.scrolled {
  background: rgba(var(--bg-rgb, 248,247,244), 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 14px 48px;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border);
}

[data-theme="dark"] #navbar.scrolled {
  background: rgba(13,12,20,0.90);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  transition: color var(--transition);
}

.logo-dot {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-2);
  position: relative;
  transition: color var(--transition);
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1.5px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

#theme-toggle {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition), transform var(--transition);
  border: 1px solid var(--border);
  cursor: pointer !important;
}

#theme-toggle:hover {
  background: var(--accent-light);
  color: var(--accent);
  transform: rotate(20deg);
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer !important;
  background: none;
  border: none;
}

.nav-burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ——— HERO ——— */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 48px;
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.6;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.25;
}

.hero-glow-1 {
  width: 600px; height: 600px;
  background: var(--accent);
  top: -100px; left: -200px;
}

.hero-glow-2 {
  width: 400px; height: 400px;
  background: var(--accent-2);
  bottom: -100px; right: -100px;
}

.hero-inner {
  width: 100%;
  max-width: 1160px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 2;
}

/* Hero Reveal Animations */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 0.8s cubic-bezier(0.4,0,0.2,1) forwards;
}

[data-reveal][data-delay="200"] {
  animation-delay: 0.2s;
}

@keyframes heroReveal {
  to { opacity: 1; transform: translateY(0); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid rgba(201,98,42,0.2);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-name-accent {
  font-style: italic;
  color: var(--accent);
}

.typing-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-2);
  margin-bottom: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  width: fit-content;
}

.mono-prefix {
  color: var(--accent);
  font-weight: 500;
}

.cursor-blink {
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ——— BUTTONS ——— */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(108,92,231,0.28);
}

.btn-primary:hover {
  background: #b3561e;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108,92,231,0.38);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

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

/* ——— HERO PHOTO ——— */
.hero-photo-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-photo-ring {
  width: 340px; height: 340px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  padding: 4px;
  position: relative;
  z-index: 2;
}

.hero-photo-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--bg-alt);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-photo-inner img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.hero-photo-fallback {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--accent-light), var(--accent-2-light));
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--accent);
}

.hero-photo-deco {
  position: absolute;
  inset: -30px;
  pointer-events: none;
}

.deco-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed var(--border);
}

.deco-ring-1 {
  inset: 0;
  animation: rotateSlow 20s linear infinite;
}

.deco-ring-2 {
  inset: -20px;
  animation: rotateSlow 30s linear infinite reverse;
}

@keyframes rotateSlow {
  to { transform: rotate(360deg); }
}

.deco-chip {
  position: absolute;
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent);
  box-shadow: var(--shadow-sm);
  z-index: 3;
}

.deco-chip-1 { top: 20px; right: -10px; }
.deco-chip-2 { bottom: 30px; left: -10px; color: var(--accent-2); }

/* ——— HERO SCROLL HINT ——— */
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-3);
}

.scroll-line {
  width: 1.5px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-3), transparent);
  animation: scrollAnim 1.8s ease-in-out infinite;
}

@keyframes scrollAnim {
  0%,100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.4; }
}

/* ——— REVEAL ANIMATION ——— */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ——— ABOUT ——— */
#about {
  background: var(--bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-text h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text);
}

.about-text p {
  color: var(--text-2);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat-card:hover::before { transform: scaleX(1); }

.stat-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ——— EDUCATION ——— */
#education {
  background: var(--bg);
}

.timeline {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0; bottom: 0;
  width: 1.5px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), transparent);
}

.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  position: relative;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  width: 50px; height: 50px;
  min-width: 50px;
  background: var(--surface);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent);
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 6px var(--accent-light);
}

.timeline-card {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  transition: all var(--transition);
}

.timeline-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.timeline-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.timeline-institution {
  font-size: 0.88rem;
  color: var(--text-2);
  margin-bottom: 10px;
}

.timeline-grade {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ——— SKILLS ——— */
#skills {
  background: var(--bg-alt);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.skill-card:hover::after { transform: scaleX(1); }

.skill-card-icon {
  width: 44px; height: 44px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.skill-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}

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

.skill-tags span {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 5px 13px;
  background: var(--surface-2);
  color: var(--text-2);
  border-radius: 100px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.skill-tags span:hover {
  background: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

/* ——— PROJECTS ——— */
#projects {
  background: var(--bg);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  cursor: default;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.project-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-badge {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
}

.badge-group    { background: var(--accent-2-light); color: var(--accent-2); }
.badge-personal { background: rgba(34,197,94,0.1);   color: #16a34a; }
.badge-hackathon{ background: var(--accent-light);   color: var(--accent); }

[data-theme="dark"] .badge-personal { color: #4ade80; }

.project-links {
  color: var(--text-3);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.project-card:hover .project-links { color: var(--accent); }

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.project-event {
  font-size: 0.8rem;
  color: var(--text-3);
  font-style: italic;
}

.project-card p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.project-tags span {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 10px;
  background: var(--surface-2);
  color: var(--text-3);
  border-radius: 100px;
  border: 1px solid var(--border);
}

/* ——— CERTIFICATIONS ——— */
#certifications {
  background: var(--bg-alt);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.cert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.cert-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.cert-img {
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

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

.cert-icon {
  font-size: 2.2rem;
  color: rgba(255,255,255,0.9);
  position: absolute;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.cert-body {
  padding: 18px 16px;
  flex: 1;
}

.cert-body h4 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 5px;
  line-height: 1.3;
}

.cert-platform {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  font-family: var(--font-mono);
}

/* Cert Modal */
.cert-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.cert-modal.open {
  opacity: 1;
  pointer-events: all;
}

.cert-modal-inner {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 460px;
  width: 100%;
  overflow: hidden;
  transform: scale(0.95) translateY(10px);
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
  position: relative;
}

.cert-modal.open .cert-modal-inner {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(0,0,0,0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer !important;
  transition: all var(--transition);
  z-index: 1;
}

.modal-close:hover { background: rgba(0,0,0,0.4); transform: rotate(90deg); }

.modal-img-area {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

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

.modal-info {
  padding: 28px 28px 32px;
}

.modal-info h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.modal-platform {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 14px;
}

.modal-desc {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}
.view-cert-btn {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.view-cert-btn:hover {
  border-color: var(--accent);
}

/* ——— HACKATHONS / EVENTS ——— */
#hackathons {
  background: var(--bg);
}

.events-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.event-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 40px;
  transition: all var(--transition);
}

.event-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.event-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 16px;
}

.event-icon {
  width: 50px; height: 50px;
  min-width: 50px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.event-header h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.event-meta {
  font-size: 0.8rem;
  color: var(--text-3);
  font-family: var(--font-mono);
}

.event-card > p {
  color: var(--text-2);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 24px;
  max-width: 680px;
}

.exp-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.gallery-img {
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--border);
  position: relative;
}

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

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

.gallery-img.img-placeholder img { display: none; }

.placeholder-icon {
  display: none;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  font-size: 1.5rem;
  color: var(--border);
}

.gallery-img.img-placeholder .placeholder-icon { display: block; }

/* ——— CONTACT ——— */
#contact {
  background: var(--bg-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info-col h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 14px;
}

.contact-desc {
  color: var(--text-2);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  color: var(--text);
}

a.contact-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.contact-item-icon {
  width: 38px; height: 38px;
  min-width: 38px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.contact-item-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  font-family: var(--font-mono);
  display: block;
  margin-bottom: 3px;
}

.contact-item p {
  font-size: 0.88rem;
  color: var(--text-2);
  word-break: break-all;
}

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

.social-links a {
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-2);
  transition: all var(--transition);
}

.social-links a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(108,92,231,0.30);
}

/* Contact Form */
.contact-form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-2);
}

.form-group label span {
  color: var(--accent);
}

.form-group input,
.form-group textarea {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-3);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-status {
  font-size: 0.85rem;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  display: none;
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(201,98,42,0.2);
}

/* ——— FOOTER ——— */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 48px 0;
  text-align: center;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
}

.footer-logo {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

footer p {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 4px;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-3);
}

/* ——— RESPONSIVE ——— */

/* Tablet */
@media (max-width: 1024px) {
  #navbar { padding: 18px 32px; }
  #navbar.scrolled { padding: 12px 32px; }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
    padding-top: 100px;
    padding-bottom: 100px;
  }

  .hero-text { display: flex; flex-direction: column; align-items: center; }
  .hero-desc { max-width: 560px; }

  .hero-photo-ring { width: 260px; height: 260px; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-stats-grid { grid-template-columns: repeat(4,1fr); }

  .skills-grid { grid-template-columns: repeat(2,1fr); }
  .projects-grid { grid-template-columns: repeat(2,1fr); }
  .certs-grid { grid-template-columns: repeat(3,1fr); }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .section-container { padding: 0 32px; }
}

/* Mobile */
@media (max-width: 768px) {
  section { padding: 80px 0; }

  #navbar { padding: 16px 24px; }
  #navbar.scrolled { padding: 12px 24px; }

  .nav-links {
    position: fixed;
    top: 0; right: 0;
    width: 100%; height: 100vh;
    background: var(--surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
    z-index: 900;
  }

  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.1rem; }

  .nav-burger { display: flex; z-index: 1001; }
  .nav-actions { gap: 8px; }

  #hero { padding: 0 24px; }
  .hero-inner { padding-top: 90px; gap: 36px; }
  .hero-name { font-size: 2.8rem; }
  .hero-photo-ring { width: 220px; height: 220px; }
  .hero-cta { justify-content: center; }

  .about-stats-grid { grid-template-columns: repeat(2,1fr); }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .certs-grid { grid-template-columns: repeat(2,1fr); }

  .timeline::before { left: 20px; }
  .timeline-dot { width: 42px; height: 42px; min-width: 42px; }
  .timeline-card { padding: 20px; }

  .event-card { padding: 24px; }
  .exp-gallery { grid-template-columns: repeat(2,1fr); }

  .contact-form-card { padding: 24px; }
  .section-container { padding: 0 24px; }
  .section-header { margin-bottom: 44px; }
}

@media (max-width: 480px) {
  .certs-grid { grid-template-columns: 1fr 1fr; }
  .hero-name { font-size: 2.3rem; }
  .about-stats-grid { grid-template-columns: 1fr 1fr; }
}