/* ═══════════════════════════════════════════════════════════════
   PROJECTS.CSS  –  Projects Section (Module 5)
   Jeeva Sivan Portfolio | Dark Futuristic Developer Theme
   ═══════════════════════════════════════════════════════════════ */

/* ─── Per-card accent palette ────────────────────────────────── */
/* Card 1 — Blue   | Card 2 — Cyan   | Card 3 — Purple          */

/* ─── Section layout ─────────────────────────────────────────── */
.projects-content {
  padding-block: var(--sp-24);
}

.projects-header {
  margin-bottom: var(--sp-16);
}

.projects-header .section-desc {
  margin-bottom: 0;
  margin-top: var(--sp-4);
}

/* ═══════════════════════════════════════════════════════════════
   PROJECTS GRID — 3 equal columns on desktop
   ═══════════════════════════════════════════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  align-items: stretch;
}

/* ═══════════════════════════════════════════════════════════════
   PROJECT CARD — Glass shell
   ═══════════════════════════════════════════════════════════════ */
.proj-card {
  display: flex;
  flex-direction: column;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: rgba(6, 13, 31, 0.72);
  border: 1px solid rgba(59, 130, 246, 0.12);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  transition:
    transform 0.55s cubic-bezier(0.34, 1.56, 0.64, 1),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  will-change: transform;
}

/* ── Per-card accent hover ── */
.proj-card[data-proj="1"]:hover {
  border-color: rgba(96, 165, 250, 0.38);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(96, 165, 250, 0.08),
    0 0 48px rgba(59, 130, 246, 0.12);
  transform: translateY(-8px);
}
.proj-card[data-proj="2"]:hover {
  border-color: rgba(6, 182, 212, 0.38);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(6, 182, 212, 0.08),
    0 0 48px rgba(6, 182, 212, 0.12);
  transform: translateY(-8px);
}
.proj-card[data-proj="3"]:hover {
  border-color: rgba(167, 139, 250, 0.38);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(139, 92, 246, 0.08),
    0 0 48px rgba(139, 92, 246, 0.12);
  transform: translateY(-8px);
}

/* Top shimmer stripe (visible on hover) */
.proj-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}
.proj-card[data-proj="1"]::after {
  background: linear-gradient(90deg, transparent 0%, rgba(96, 165, 250, 0.9) 50%, transparent 100%);
}
.proj-card[data-proj="2"]::after {
  background: linear-gradient(90deg, transparent 0%, rgba(6, 182, 212, 0.9) 50%, transparent 100%);
}
.proj-card[data-proj="3"]::after {
  background: linear-gradient(90deg, transparent 0%, rgba(167, 139, 250, 0.9) 50%, transparent 100%);
}
.proj-card:hover::after { opacity: 1; }

/* ═══════════════════════════════════════════════════════════════
   ABSTRACT VISUAL PANEL
   ═══════════════════════════════════════════════════════════════ */
.proj-visual {
  position: relative;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}

/* Gradient bg per project */
.proj-visual-1 {
  background: radial-gradient(ellipse at 30% 60%, rgba(29, 78, 216, 0.25) 0%, rgba(10, 22, 40, 0.95) 70%);
}
.proj-visual-2 {
  background: radial-gradient(ellipse at 30% 60%, rgba(6, 182, 212, 0.2) 0%, rgba(5, 18, 32, 0.95) 70%);
}
.proj-visual-3 {
  background: radial-gradient(ellipse at 30% 60%, rgba(139, 92, 246, 0.22) 0%, rgba(12, 8, 28, 0.95) 70%);
}

/* Dot-grid pattern overlay */
.proj-visual-bg {
  position: absolute;
  inset: 0;
  background-size: 22px 22px;
  pointer-events: none;
}
.proj-visual-1 .proj-visual-bg {
  background-image: radial-gradient(rgba(96, 165, 250, 0.2) 1px, transparent 1px);
}
.proj-visual-2 .proj-visual-bg {
  background-image: radial-gradient(rgba(6, 182, 212, 0.2) 1px, transparent 1px);
}
.proj-visual-3 .proj-visual-bg {
  background-image: radial-gradient(rgba(167, 139, 250, 0.2) 1px, transparent 1px);
}

/* Ghost large number (watermark) */
.proj-ghost-num {
  position: absolute;
  right: -6px;
  bottom: -10px;
  font-family: var(--font-mono);
  font-size: 7rem;
  font-weight: var(--fw-black);
  letter-spacing: -0.08em;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  opacity: 0.055;
}
.proj-visual-1 .proj-ghost-num { color: #60a5fa; }
.proj-visual-2 .proj-ghost-num { color: #06b6d4; }
.proj-visual-3 .proj-ghost-num { color: #a78bfa; }

/* ── Glyph wrapper (ring + icon) ── */
.proj-glyph-wrap {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-bounce);
}

/* Spinning outer ring */
.proj-glyph-ring {
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 1px dashed;
  opacity: 0.25;
  animation: proj-ring-spin 18s linear infinite;
}
.proj-visual-1 .proj-glyph-ring { border-color: rgba(96, 165, 250, 0.8); }
.proj-visual-2 .proj-glyph-ring { border-color: rgba(6, 182, 212, 0.8); }
.proj-visual-3 .proj-glyph-ring { border-color: rgba(167, 139, 250, 0.8); }

@keyframes proj-ring-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* Center icon */
.proj-glyph {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  transition: transform var(--transition-bounce), box-shadow var(--transition-base);
}
.proj-visual-1 .proj-glyph { color: rgba(96, 165, 250, 0.85); }
.proj-visual-2 .proj-glyph { color: rgba(6, 182, 212, 0.85); }
.proj-visual-3 .proj-glyph { color: rgba(167, 139, 250, 0.85); }

.proj-card:hover .proj-glyph-wrap {
  transform: scale(1.08) translateY(-4px);
}
.proj-card[data-proj="1"]:hover .proj-glyph {
  box-shadow: 0 0 28px rgba(59, 130, 246, 0.35);
}
.proj-card[data-proj="2"]:hover .proj-glyph {
  box-shadow: 0 0 28px rgba(6, 182, 212, 0.35);
}
.proj-card[data-proj="3"]:hover .proj-glyph {
  box-shadow: 0 0 28px rgba(139, 92, 246, 0.35);
}

/* ── Floating orbs ── */
.proj-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
}
.proj-orb-a {
  width: 60px;
  height: 60px;
  top: 12px;
  left: 18px;
  animation: proj-orb-float-a 6s ease-in-out infinite;
}
.proj-orb-b {
  width: 38px;
  height: 38px;
  bottom: 14px;
  right: 22px;
  animation: proj-orb-float-b 8s ease-in-out infinite;
  animation-delay: -3s;
}
.proj-visual-1 .proj-orb-a { background: radial-gradient(circle, rgba(96, 165, 250, 0.3), transparent 70%); }
.proj-visual-1 .proj-orb-b { background: radial-gradient(circle, rgba(59, 130, 246, 0.25), transparent 70%); }
.proj-visual-2 .proj-orb-a { background: radial-gradient(circle, rgba(6, 182, 212, 0.3), transparent 70%); }
.proj-visual-2 .proj-orb-b { background: radial-gradient(circle, rgba(34, 211, 238, 0.25), transparent 70%); }
.proj-visual-3 .proj-orb-a { background: radial-gradient(circle, rgba(167, 139, 250, 0.3), transparent 70%); }
.proj-visual-3 .proj-orb-b { background: radial-gradient(circle, rgba(139, 92, 246, 0.25), transparent 70%); }

.proj-card:hover .proj-orb { opacity: 1; }

@keyframes proj-orb-float-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%       { transform: translate(6px, -8px) scale(1.06); }
}
@keyframes proj-orb-float-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%       { transform: translate(-5px, 7px) scale(1.08); }
}

/* ── Scan line ── */
.proj-scanline {
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  top: 0;
  pointer-events: none;
  animation: proj-scan 4s ease-in-out infinite;
}
.proj-visual-1 .proj-scanline {
  background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.7), transparent);
}
.proj-visual-2 .proj-scanline {
  background: linear-gradient(90deg, transparent, rgba(6, 182, 212, 0.7), transparent);
  animation-delay: -1.4s;
}
.proj-visual-3 .proj-scanline {
  background: linear-gradient(90deg, transparent, rgba(167, 139, 250, 0.7), transparent);
  animation-delay: -2.7s;
}

@keyframes proj-scan {
  0%   { top: -2px; opacity: 0; }
  8%   { opacity: 1; }
  92%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

/* ── Top accent bar (always visible) ── */
.proj-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  pointer-events: none;
}
.proj-visual-1 .proj-top-bar {
  background: linear-gradient(90deg, rgba(29, 78, 216, 0.6) 0%, rgba(96, 165, 250, 0.9) 50%, rgba(29, 78, 216, 0.6) 100%);
}
.proj-visual-2 .proj-top-bar {
  background: linear-gradient(90deg, rgba(5, 100, 130, 0.6) 0%, rgba(6, 182, 212, 0.9) 50%, rgba(5, 100, 130, 0.6) 100%);
}
.proj-visual-3 .proj-top-bar {
  background: linear-gradient(90deg, rgba(76, 29, 149, 0.6) 0%, rgba(167, 139, 250, 0.9) 50%, rgba(76, 29, 149, 0.6) 100%);
}

/* ═══════════════════════════════════════════════════════════════
   CARD BODY
   ═══════════════════════════════════════════════════════════════ */
.proj-body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-6);
  flex: 1;
}

/* ── Title row (number chip + title) ── */
.proj-title-row {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
}

/* Number chip */
.proj-num-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 36px;
  height: 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: var(--fw-bold);
  letter-spacing: 0.05em;
  margin-top: 3px;
}
.proj-card[data-proj="1"] .proj-num-chip {
  color: var(--clr-blue-bright);
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
}
.proj-card[data-proj="2"] .proj-num-chip {
  color: var(--clr-cyan-bright);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
}
.proj-card[data-proj="3"] .proj-num-chip {
  color: var(--clr-purple-bright);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.25);
}

/* Title */
.proj-title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--clr-text-primary);
  line-height: var(--lh-snug);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  flex: 1;
}

/* Subtitle tag line */
.proj-subtitle {
  font-size: var(--fs-xs);
  font-weight: var(--fw-normal);
  color: var(--clr-text-muted);
  letter-spacing: 0.01em;
  line-height: var(--lh-relaxed);
}

/* Description */
.proj-desc {
  font-size: var(--fs-sm);
  color: rgba(148, 163, 184, 0.88);
  line-height: var(--lh-relaxed);
  flex: 1;
}

/* ── Tech badge row ── */
.proj-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.proj-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  padding: 3px 10px;
  white-space: nowrap;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

/* Per-card badge accent */
.proj-card[data-proj="1"] .proj-badge {
  color: var(--clr-blue-bright);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
}
.proj-card[data-proj="2"] .proj-badge {
  color: var(--clr-cyan-bright);
  background: rgba(6, 182, 212, 0.07);
  border: 1px solid rgba(6, 182, 212, 0.22);
}
.proj-card[data-proj="3"] .proj-badge {
  color: var(--clr-purple-bright);
  background: rgba(139, 92, 246, 0.07);
  border: 1px solid rgba(139, 92, 246, 0.22);
}

.proj-card[data-proj="1"] .proj-badge:hover {
  background: rgba(37, 99, 235, 0.18);
  border-color: rgba(96, 165, 250, 0.5);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}
.proj-card[data-proj="2"] .proj-badge:hover {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.5);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}
.proj-card[data-proj="3"] .proj-badge:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: rgba(167, 139, 250, 0.5);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
}

/* ── Links row ── */
.proj-links {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-top: var(--sp-4);
  border-top: 1px solid rgba(59, 130, 246, 0.07);
  margin-top: auto;
}

.proj-card[data-proj="2"] .proj-links { border-top-color: rgba(6, 182, 212, 0.07); }
.proj-card[data-proj="3"] .proj-links { border-top-color: rgba(139, 92, 246, 0.07); }

/* Real link button (injected by projects.js when URL is available) */
.proj-link-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  padding: 6px 16px;
  text-decoration: none;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-bounce),
    box-shadow var(--transition-fast);
}

/* Default GitHub button style (blue) */
.proj-link-btn {
  color: var(--clr-blue-bright);
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
}
.proj-link-btn:hover {
  color: #fff;
  background: rgba(37, 99, 235, 0.2);
  border-color: rgba(96, 165, 250, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.2);
}

/* Live demo button variant */
.proj-link-btn.live {
  color: var(--clr-cyan-bright);
  background: rgba(6, 182, 212, 0.07);
  border-color: rgba(6, 182, 212, 0.25);
}
.proj-link-btn.live:hover {
  color: #fff;
  background: rgba(6, 182, 212, 0.16);
  border-color: rgba(6, 182, 212, 0.5);
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.2);
}

/* Placeholder "coming soon" notice */
.proj-no-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
  opacity: 0.55;
  cursor: default;
  user-select: none;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

/* ── Tablet (≤ 1100px): 2-col + last card centred ── */
@media (max-width: 1100px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proj-card:last-child {
    grid-column: 1 / -1;
    max-width: 520px;
    justify-self: center;
    width: 100%;
  }
}

/* ── Small tablet (≤ 768px): 1-col ── */
@media (max-width: 768px) {
  .projects-content { padding-block: var(--sp-16); }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-5);
  }

  .proj-card:last-child {
    grid-column: 1;
    max-width: 100%;
    justify-self: auto;
  }

  .proj-visual { height: 155px; }
}

/* ── Mobile (≤ 480px) ── */
@media (max-width: 480px) {
  .proj-visual   { height: 130px; }
  .proj-ghost-num { font-size: 5rem; }
  .proj-body     { padding: var(--sp-5); gap: var(--sp-3); }
  .proj-title    { font-size: var(--fs-base); }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .proj-card,
  .proj-glyph-wrap,
  .proj-glyph,
  .proj-orb,
  .proj-scanline,
  .proj-glyph-ring {
    animation: none !important;
    transition: none !important;
  }
}