/* ============================================================
   GLASSMORPHISM — iOS Style
   ============================================================ */

/* ── Enhanced Glass Variables ── */
:root {
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.45);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --glass-blur: blur(20px);
  --glass-saturate: saturate(180%);
  --noise: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
}

[data-theme="dark"] {
  --glass-bg: rgba(15, 20, 30, 0.45);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* ── Base Glass Mixin ── */
.glass {
  background: var(--glass-bg) !important;
  backdrop-filter: var(--glass-blur) var(--glass-saturate) !important;
  -webkit-backdrop-filter: var(--glass-blur) var(--glass-saturate) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow),
              inset 0 1px 0 rgba(255,255,255,0.15) !important;
}

/* ── Navbar Glass ── */
.navbar {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(24px) saturate(200%) !important;
  -webkit-backdrop-filter: blur(24px) saturate(200%) !important;
  border-bottom: 1px solid var(--glass-border) !important;
  box-shadow: 0 1px 0 rgba(255,255,255,0.1),
              0 4px 24px rgba(0,0,0,0.06) !important;
}

[data-theme="dark"] .navbar {
  background: rgba(13, 17, 23, 0.7) !important;
  border-bottom: 1px solid rgba(255,255,255,0.06) !important;
}

/* ── Section Backgrounds ── */
section {
  position: relative;
}

section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

section > .container {
  position: relative;
  z-index: 1;
}

/* ── Glass Cards (Enhanced) ── */
.glass-card {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(16px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(16px) saturate(180%) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow),
              inset 0 1px 0 rgba(255,255,255,0.12) !important;
  border-radius: 20px !important;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.glass-card:hover {
  background: var(--glass-bg) !important;
  border-color: var(--border-accent) !important;
  box-shadow: var(--shadow-hover),
              inset 0 1px 0 rgba(255,255,255,0.2),
              0 0 0 1px var(--border-accent) !important;
  transform: translateY(-6px) !important;
}

/* ── Project Cards (iOS Widget Style) ── */
.project-card {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(20px) saturate(200%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(200%) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow),
              inset 0 1px 0 rgba(255,255,255,0.15) !important;
  border-radius: 24px !important;
  overflow: hidden !important;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.project-card:hover {
  transform: translateY(-8px) scale(1.01) !important;
  border-color: var(--border-accent) !important;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15),
              inset 0 1px 0 rgba(255,255,255,0.2),
              0 0 0 1px var(--border-accent) !important;
}

[data-theme="dark"] .project-card:hover {
  box-shadow: 0 20px 60px rgba(139,92,246,0.2),
              inset 0 1px 0 rgba(255,255,255,0.08),
              0 0 0 1px rgba(139,92,246,0.4) !important;
}

/* ── Project Placeholder (iOS Icon Style) ── */
.project-preview-placeholder {
  display: flex !important;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

/* Gradient backgrounds per project */
.project-placeholder-1 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.project-placeholder-2 {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}
.project-placeholder-3 {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.project-preview-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.1) 0%,
    transparent 50%,
    rgba(0,0,0,0.1) 100%
  );
}

.project-preview-placeholder .placeholder-icon {
  font-size: 4rem;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
  position: relative;
  z-index: 1;
  animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.project-preview-placeholder .placeholder-label {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 1;
}

/* ── Skill Tags (Glass Pills) ── */
.tag {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1) !important;
  border-radius: 20px !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
  padding: 6px 16px !important;
}

.tag:hover {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: white !important;
  box-shadow: 0 4px 16px rgba(59,130,246,0.35),
              inset 0 1px 0 rgba(255,255,255,0.2) !important;
  transform: translateY(-2px) !important;
}

/* ── Buttons (Glass Style) ── */
.btn-primary {
  background: var(--accent-gradient) !important;
  box-shadow: 0 4px 20px rgba(59,130,246,0.35),
              inset 0 1px 0 rgba(255,255,255,0.2) !important;
  border-radius: 12px !important;
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(59,130,246,0.5),
              inset 0 1px 0 rgba(255,255,255,0.25) !important;
  transform: translateY(-3px) !important;
}

.btn-secondary {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1) !important;
  border-radius: 12px !important;
}

.btn-secondary:hover {
  border-color: var(--accent) !important;
  background: rgba(37,99,235,0.08) !important;
  box-shadow: 0 4px 16px rgba(37,99,235,0.15),
              inset 0 1px 0 rgba(255,255,255,0.15) !important;
}

/* ── Nav Buttons ── */
.nav-btn {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1) !important;
  border-radius: 10px !important;
}

.nav-btn:hover {
  border-color: var(--accent) !important;
  background: rgba(37,99,235,0.1) !important;
}

/* ── Social Links ── */
.social-link {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1) !important;
  border-radius: 12px !important;
}

.social-link:hover {
  background: rgba(37,99,235,0.1) !important;
  border-color: var(--accent) !important;
  box-shadow: 0 4px 16px rgba(37,99,235,0.2),
              inset 0 1px 0 rgba(255,255,255,0.15) !important;
}

/* ── Timeline Cards ── */
.timeline-card {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(16px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(16px) saturate(180%) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow),
              inset 0 1px 0 rgba(255,255,255,0.1) !important;
  border-radius: 20px !important;
}

/* ── Cert Cards ── */
.cert-card {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow),
              inset 0 1px 0 rgba(255,255,255,0.1) !important;
  border-radius: 16px !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.cert-card:hover {
  transform: translateY(-4px) !important;
  border-color: var(--border-accent) !important;
  box-shadow: 0 12px 32px rgba(0,0,0,0.1),
              inset 0 1px 0 rgba(255,255,255,0.15) !important;
}

/* ── Form Inputs ── */
.form-group input,
.form-group textarea {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05) !important;
  border-radius: 12px !important;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent) !important;
  background: var(--glass-bg) !important;
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12),
              inset 0 1px 0 rgba(255,255,255,0.08) !important;
}

/* ── Stat Cards ── */
.stat-card {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(16px) saturate(180%) !important;
  -webkit-backdrop-filter: blur(16px) saturate(180%) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow),
              inset 0 1px 0 rgba(255,255,255,0.12) !important;
  border-radius: 20px !important;
  transition: all 0.3s ease !important;
}

.stat-card:hover {
  transform: translateY(-4px) !important;
  border-color: var(--border-accent) !important;
}

/* ── Mobile Menu ── */
.mobile-menu {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(24px) saturate(200%) !important;
  -webkit-backdrop-filter: blur(24px) saturate(200%) !important;
  border-bottom: 1px solid var(--glass-border) !important;
}

/* ── Qual Tabs ── */
.qual-tab:not(.active) {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid var(--glass-border) !important;
}

/* ── Badge ── */
.available-badge {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(8px) !important;
  -webkit-backdrop-filter: blur(8px) !important;
  border: 1px solid rgba(34,197,94,0.3) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1),
              0 0 20px rgba(34,197,94,0.1) !important;
}

/* ── Hero Photo Ring ── */
.hero-photo-ring::before {
  background: var(--accent-gradient) !important;
  filter: blur(0) !important;
}

/* ── Footer ── */
footer {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border-top: 1px solid var(--glass-border) !important;
}

/* ── Ambient Background Blobs ── */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.07;
}

body::before {
  width: 500px;
  height: 500px;
  background: var(--accent);
  top: -100px;
  left: -100px;
  animation: ambientMove1 12s ease-in-out infinite;
}

body::after {
  width: 400px;
  height: 400px;
  background: var(--accent-2);
  bottom: -100px;
  right: -100px;
  animation: ambientMove2 10s ease-in-out infinite;
}

[data-theme="dark"] body::before { opacity: 0.12; }
[data-theme="dark"] body::after { opacity: 0.1; }

@keyframes ambientMove1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(60px, 40px); }
}

@keyframes ambientMove2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-40px, -60px); }
}

/* ── Scrollbar (iOS Thin) ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-accent);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Selection ── */
::selection {
  background: rgba(59,130,246,0.2);
  color: var(--text-primary);
}

.project-placeholder-4 {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

/* ── iOS-authentic Glass Refinement ── */
:root {
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.6);
}
[data-theme="dark"] {
  --glass-bg: rgba(30, 35, 45, 0.55);
  --glass-border: rgba(255, 255, 255, 0.1);
}
.glass-card, .project-card, .timeline-card, .cert-card, .stat-card, .svc-card {
  backdrop-filter: blur(28px) saturate(220%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(220%) !important;
  border-radius: 22px !important;
}
.link-item {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(24px) saturate(200%) !important;
  -webkit-backdrop-filter: blur(24px) saturate(200%) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: 18px !important;
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.25) !important;
}