/* ═══════════════════════════════════════════════════════════
   DAIVIK PATEL PORTFOLIO — STYLESHEET
   ═══════════════════════════════════════════════════════════ */

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

:root {
  --bg:          #070810;
  --bg-2:        #0d0e1a;
  --bg-card:     rgba(255,255,255,0.04);
  --border:      rgba(255,255,255,0.07);
  --purple:      #7c3aed;
  --purple-soft: #a855f7;
  --blue:        #3b82f6;
  --blue-neon:   #60a5fa;
  --cyan:        #22d3ee;
  --text:        #f1f5f9;
  --text-muted:  #94a3b8;
  --text-dim:    #475569;
  --font-sans:   'Inter', system-ui, sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --radius:      16px;
  --radius-sm:   8px;
  --transition:  0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--purple); border-radius: 99px; }

/* ─── Selection ─── */
::selection { background: rgba(124,58,237,0.35); color: var(--text); }

/* ─── Custom Cursor ─── */
.cursor {
  position: fixed; width: 10px; height: 10px;
  background: var(--purple-soft); border-radius: 50%;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s, transform 0.1s;
}
.cursor-follower {
  position: fixed; width: 36px; height: 36px;
  border: 1.5px solid rgba(168,85,247,0.4); border-radius: 50%;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.12s ease, opacity 0.3s;
}
.cursor.hovered { transform: translate(-50%,-50%) scale(2.5); background: var(--cyan); }
.cursor-follower.hovered { opacity: 0; }

/* ─── Typography ─── */
.gradient-text {
  background: linear-gradient(135deg, var(--purple-soft), var(--blue-neon));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.highlight {
  color: var(--blue-neon);
  font-family: var(--font-mono);
  font-size: 0.92em;
}

/* ─── Layout ─── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 120px 0; }

/* ─── Section Tags ─── */
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--purple-soft);
  border: 1px solid rgba(168,85,247,0.25);
  background: rgba(124,58,237,0.08);
  padding: 4px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-title.centered { text-align: center; }
.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 64px;
}

/* ─── Navbar ─── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(7,8,16,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.nav-container {
  max-width: 1100px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono); font-size: 1.2rem; font-weight: 700;
  color: var(--text); text-decoration: none;
}
.logo-bracket { color: var(--purple-soft); }
.nav-links {
  display: flex; gap: 36px; list-style: none;
}
.nav-link {
  color: var(--text-muted); text-decoration: none; font-size: 0.9rem;
  font-weight: 500; letter-spacing: 0.01em;
  position: relative; transition: color var(--transition);
}
.nav-link::after {
  content: ''; position: absolute; bottom: -3px; left: 0;
  width: 0; height: 1px; background: var(--purple-soft);
  transition: width var(--transition);
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: none; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}

/* ─── Hero ─── */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none;
}
.hero-grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(124,58,237,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,58,237,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center; max-width: 780px; padding: 0 24px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.82rem; font-weight: 500; color: var(--text-muted);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  padding: 6px 16px; border-radius: 99px;
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}
.badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34,197,94,0.2);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
  50%       { box-shadow: 0 0 0 6px rgba(34,197,94,0.05); }
}
.hero-headline {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800; line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.hero-subtext {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted); line-height: 1.8;
  margin-bottom: 48px;
}
.hero-cta {
  display: flex; gap: 16px; justify-content: center;
  flex-wrap: wrap; margin-bottom: 80px;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-sm);
  font-size: 0.95rem; font-weight: 600;
  text-decoration: none; transition: var(--transition);
  cursor: none; border: none; outline: none;
  position: relative; overflow: hidden;
}
.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--blue));
  color: #fff;
  box-shadow: 0 0 24px rgba(124,58,237,0.3);
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--purple-soft), var(--blue-neon));
  opacity: 0; transition: opacity var(--transition);
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(124,58,237,0.5); }
.btn-primary span, .btn-primary svg { position: relative; z-index: 1; }

.btn-ghost {
  background: transparent; color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--text); border-color: rgba(168,85,247,0.4);
  background: rgba(124,58,237,0.08); transform: translateY(-2px);
}

.hero-scroll-hint {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-dim); font-size: 0.75rem; letter-spacing: 0.1em;
  text-transform: uppercase; font-family: var(--font-mono);
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, transparent, var(--purple-soft));
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; } 50% { opacity: 1; }
}

/* ─── About ─── */
.about { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-desc {
  color: var(--text-muted); font-size: 1.05rem; line-height: 1.85;
  margin-bottom: 16px;
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px; text-align: center;
  backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--purple-soft), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.stat-card:hover { transform: translateY(-4px); border-color: rgba(168,85,247,0.3); }
.stat-card:hover::before { opacity: 1; }
.stat-number {
  display: block; font-size: 2.8rem; font-weight: 800;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--purple-soft), var(--blue-neon));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1;
}
.stat-plus {
  display: inline-block; font-size: 1.5rem; font-weight: 800;
  background: linear-gradient(135deg, var(--purple-soft), var(--blue-neon));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  display: block; font-size: 0.78rem; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: 8px; font-family: var(--font-mono);
}

/* ─── Projects ─── */
.projects { background: var(--bg); }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
/* first card spans 2 columns */
.project-card.featured { grid-column: span 2; }

.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: none;
}
.card-glow {
  position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,0.15), transparent 70%);
  pointer-events: none;
  transition: opacity var(--transition);
  opacity: 0;
}
.card-glow.glow-purple { background: radial-gradient(circle, rgba(168,85,247,0.2), transparent 70%); }
.card-glow.glow-cyan   { background: radial-gradient(circle, rgba(34,211,238,0.15), transparent 70%); }

.project-card:hover { transform: translateY(-6px); border-color: rgba(168,85,247,0.3); }
.project-card:hover .card-glow { opacity: 1; }

.card-inner { padding: 28px; }
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.card-icon { font-size: 1.8rem; }
.card-badge {
  font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 4px 10px; border-radius: 99px;
  background: rgba(124,58,237,0.15); color: var(--purple-soft);
  border: 1px solid rgba(124,58,237,0.2);
  font-family: var(--font-mono);
}
.ai-badge  { background: rgba(168,85,247,0.15); color: #c084fc; border-color: rgba(168,85,247,0.25); }
.wip-badge { background: rgba(251,191,36,0.1);  color: #fbbf24;  border-color: rgba(251,191,36,0.2); }

.card-title {
  font-size: 1.1rem; font-weight: 700; margin-bottom: 12px;
  line-height: 1.4; letter-spacing: -0.01em;
}
.card-desc {
  color: var(--text-muted); font-size: 0.9rem;
  line-height: 1.75; margin-bottom: 20px;
}
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 0.75rem; font-family: var(--font-mono);
  color: var(--blue-neon); background: rgba(96,165,250,0.08);
  border: 1px solid rgba(96,165,250,0.15);
  padding: 3px 10px; border-radius: 99px;
}

/* ─── Skills ─── */
.skills { background: var(--bg-2); }
.skills-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 24px; margin-bottom: 48px;
}
.skill-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: var(--transition);
}
.skill-item:hover { border-color: rgba(168,85,247,0.3); transform: translateX(4px); }
.skill-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 12px;
}
.skill-icon { font-size: 1.1rem; }
.skill-name { font-weight: 600; font-size: 0.95rem; flex: 1; }
.skill-pct {
  font-family: var(--font-mono); font-size: 0.8rem;
  color: var(--purple-soft);
}
.skill-bar {
  height: 4px; background: rgba(255,255,255,0.06);
  border-radius: 99px; overflow: hidden;
}
.skill-fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--purple), var(--blue-neon));
  border-radius: 99px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px rgba(124,58,237,0.4);
}

.tech-badges {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}
.tech-badge {
  font-family: var(--font-mono); font-size: 0.8rem;
  color: var(--text-muted); background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 16px; border-radius: 99px;
  transition: var(--transition);
}
.tech-badge:hover {
  color: var(--cyan); border-color: rgba(34,211,238,0.3);
  background: rgba(34,211,238,0.05); transform: translateY(-2px);
}

/* ─── Approach ─── */
.approach { background: var(--bg); }
.approach-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px; margin-top: 56px;
}
.approach-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  overflow: hidden;
  transition: var(--transition);
}
.approach-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(124,58,237,0.06), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.approach-card:hover { transform: translateY(-6px); border-color: rgba(168,85,247,0.3); }
.approach-card:hover::before { opacity: 1; }
.approach-num {
  font-family: var(--font-mono); font-size: 3rem; font-weight: 800;
  color: rgba(124,58,237,0.12);
  position: absolute; top: 16px; right: 20px;
  line-height: 1; pointer-events: none;
}
.approach-icon { font-size: 2rem; margin-bottom: 20px; display: block; }
.approach-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 12px; }
.approach-desc { color: var(--text-muted); font-size: 0.9rem; line-height: 1.75; }

/* ─── Contact ─── */
.contact {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.contact-inner {
  text-align: center; max-width: 640px; margin: 0 auto;
}
.contact-sub {
  color: var(--text-muted); font-size: 1.05rem; margin-bottom: 48px;
}
.contact-links {
  display: flex; flex-direction: column; gap: 16px;
  align-items: center;
}
.contact-btn {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 28px; width: 100%;
  color: var(--text-muted); text-decoration: none;
  font-size: 0.95rem; font-weight: 500;
  transition: var(--transition);
  cursor: none;
}
.contact-btn:hover {
  color: var(--text); border-color: rgba(168,85,247,0.4);
  background: rgba(124,58,237,0.08); transform: translateX(6px);
}
.contact-btn-icon {
  font-size: 1.1rem; display: flex; align-items: center;
}

/* ─── Footer ─── */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0; text-align: center;
  font-size: 0.85rem; color: var(--text-dim);
}

/* ─── Scroll Animations ─── */
.reveal-up, .reveal-left, .reveal-right {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX( 40px); }

.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1; transform: none;
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .project-card.featured { grid-column: span 2; }
  .approach-grid { grid-template-columns: 1fr 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
}

@media (max-width: 650px) {
  .section { padding: 80px 0; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.featured { grid-column: span 1; }
  .approach-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 24px;
    position: fixed; inset: 0; background: rgba(7,8,16,0.97);
    backdrop-filter: blur(24px); align-items: center;
    justify-content: center; z-index: 99;
  }
  .nav-link { font-size: 1.4rem; }
  .nav-toggle { display: flex; z-index: 100; }
  .hero-cta { flex-direction: column; align-items: center; }
  .cursor, .cursor-follower { display: none; }
  body { cursor: auto; }
  .btn, .contact-btn, .project-card, .skill-item,
  .stat-card, .approach-card, .tech-badge { cursor: pointer; }
}