/* =====================================================
   PORTFOLIO — Custom Styles
   Stack: Bootstrap 5.3 dark theme + custom overrides
   ===================================================== */

/* ─── Design Tokens ─────────────────────────────────── */
:root {
  --accent:        #6366f1;       /* indigo-500  */
  --accent-light:  #818cf8;       /* indigo-400  */
  --accent-glow:   rgba(99, 102, 241, 0.25);
  --surface:       #0f1117;       /* page bg     */
  --surface-2:     #161b27;       /* alt section */
  --surface-3:     #1e2436;       /* card bg     */
  --surface-border:#2a3147;
  --text-primary:  #f1f5f9;
  --text-secondary:#8b9cbf;
  --gradient-hero: linear-gradient(135deg, #0f1117 0%, #1a1040 50%, #0f1117 100%);
  --radius-lg:     1rem;
  --radius-xl:     1.5rem;
  --transition:    0.25s ease;
}

/* ─── Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px; /* offset for sticky nav */
}

body {
  background-color: var(--surface);
  color: var(--text-primary);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Utility: extra vertical padding */
.py-6 { padding-top: 5rem !important; padding-bottom: 5rem !important; }

/* ─── Trust Bar ─────────────────────────────────────── */
.trust-bar {
  background-color: var(--surface-2);
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
  padding: 0.875rem 0;
}

.trust-bar__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem 1.5rem;
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.trust-bar__item i {
  color: var(--accent-light);
  font-size: 1rem;
  flex-shrink: 0;
}

.trust-bar__divider {
  width: 1px;
  height: 1.1rem;
  background-color: var(--surface-border);
}

@media (max-width: 575.98px) {
  .trust-bar__divider { display: none; }
  .trust-bar__item { white-space: normal; text-align: center; }
}

/* ─── Scrollbar ──────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--surface-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─── Selection ─────────────────────────────────────── */
::selection { background: var(--accent-glow); color: var(--accent-light); }

/* ═══════════════════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════════════════ */
#mainNav {
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--surface-border);
  transition: background var(--transition), box-shadow var(--transition);
  z-index: 1030;
}

#mainNav.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.navbar-brand {
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

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

.nav-link {
  color: var(--text-secondary) !important;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem !important;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary) !important;
  background: rgba(255, 255, 255, 0.06);
}

/* ═══════════════════════════════════════════════════════
   OFFCANVAS SIDE MENU
═══════════════════════════════════════════════════════ */
#sideMenu {
  width: 300px;
  background: var(--surface-2);
  border-left: 1px solid var(--surface-border);
}

#sideMenu .offcanvas-header {
  padding: 1.25rem 1.5rem;
}

#sideMenu .btn-close {
  filter: invert(1) grayscale(1) brightness(1.5);
  opacity: 0.6;
}
#sideMenu .btn-close:hover { opacity: 1; }

#sideMenu .offcanvas-body {
  padding: 1.5rem;
}

/* Side nav links */
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.side-nav-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--transition);
}

.side-nav-link i {
  font-size: 1.1rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

.side-nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--surface-border);
  transform: translateX(4px);
}

.side-nav-link.active {
  color: var(--accent-light);
  background: rgba(99, 102, 241, 0.1);
  border-color: rgba(99, 102, 241, 0.25);
}

/* Backdrop tint */
.offcanvas-backdrop {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

═══════════════════════════════════════════════════════ */
.hero-section {
  min-height: 100svh;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

/* Subtle grid overlay */
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--surface-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--surface-border) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.15;
  pointer-events: none;
}

/* Glowing orbs */
.hero-section::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
  overflow: hidden;
  flex-shrink: 0;
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent-light), #a78bfa, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hero stats */
.hero-stats { position: relative; z-index: 1; }

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--surface-border);
  align-self: center;
}

/* ═══════════════════════════════════════════════════════
   SECTION SHARED
═══════════════════════════════════════════════════════ */
.section-alt { background: var(--surface-2); }

.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* ═══════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════ */
.about-card {
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
}

.terminal-header { user-select: none; }

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }

.about-code {
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  background: transparent;
  color: var(--text-secondary);
  white-space: pre;
}

.c-brace { color: #7dd3fc; }
.c-key   { color: #86efac; }
.c-str   { color: #fca5a5; }
.c-bool  { color: var(--accent-light); }

.pill-tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  transition: border-color var(--transition), color var(--transition);
}

.pill-tag:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

/* ═══════════════════════════════════════════════════════
   PROJECT / CATEGORY CARDS
═══════════════════════════════════════════════════════ */
.card-project {
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg) !important;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}

.card-project:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--accent-glow);
}

/* ─── Category icon wraps ────────────────────────────── */
.category-icon-wrap {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.category-icon--edu     { background: rgba(99,102,241,0.15); color: var(--accent-light); }
.category-icon--pos     { background: rgba(245,158,11,0.15);  color: #fbbf24; }
.category-icon--booking { background: rgba(16,185,129,0.15);  color: #34d399; }
.category-icon--fintech { background: rgba(52,211,153,0.12);  color: #6ee7b7; }
.category-icon--ecom    { background: rgba(236,72,153,0.15);  color: #f472b6; }
.category-icon--charity  { background: rgba(239,68,68,0.15);   color: #f87171; }
.category-icon--health   { background: rgba(20,184,166,0.15);  color: #2dd4bf; }
.category-icon--marriage { background: rgba(251,113,133,0.15); color: #fb7185; }
.category-icon--book         { background: rgba(139,92,246,0.15);  color: #a78bfa; }
.category-icon--news         { background: rgba(234,179,8,0.15);   color: #facc15; }
.category-icon--professional { background: rgba(14,165,233,0.15);  color: #38bdf8; }
.category-icon--politics     { background: rgba(249,115,22,0.15);  color: #fb923c; }

.card-category .card-title {
  font-size: 1rem;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════════════════ */
.skill-group {
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.skill-group:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.skill-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent-light);
}

/* 5-column skills grid */
.row-skills .col-skill {
  flex: 0 0 auto;
  width: 100%;
}
@media (min-width: 768px)  { .row-skills .col-skill { width: 50%; } }
@media (min-width: 1200px) { .row-skills .col-skill { width: 20%; } }

.skill-icon--mobile { background: rgba(99,102,241,0.15); color: var(--accent-light); }
.skill-icon--web    { background: rgba(16,185,129,0.15);  color: #34d399; }
.skill-icon--tools  { background: rgba(245,158,11,0.15);  color: #fbbf24; }
.skill-icon--ai     { background: rgba(244,114,182,0.15); color: #f472b6; }
.skill-icon--server { background: rgba(34,211,238,0.15);  color: #22d3ee; }

/* Server & Infrastructure highlighted card */
.skill-group--server {
  border-color: rgba(34, 211, 238, 0.35) !important;
  background: linear-gradient(135deg, var(--surface-3), rgba(34,211,238,0.05)) !important;
}
.skill-group--server:hover { border-color: #22d3ee !important; }

.server-skill-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  border-radius: 0.6rem;
  background: rgba(34, 211, 238, 0.07);
  border: 1px solid rgba(34, 211, 238, 0.18);
  color: var(--text-primary);
  height: 100%;
  transition: background var(--transition), border-color var(--transition);
}
.server-skill-item:hover {
  background: rgba(34, 211, 238, 0.14);
  border-color: rgba(34, 211, 238, 0.4);
}
.server-skill-item i {
  font-size: 1.1rem;
  color: #22d3ee;
  flex-shrink: 0;
  margin-top: 0.15rem;
}
.server-skill-title {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.server-skill-desc {
  font-size: 0.775rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* AI card accent border */
.skill-group--ai {
  border-color: rgba(244, 114, 182, 0.3) !important;
  background: linear-gradient(160deg, var(--surface-3), rgba(244,114,182,0.04)) !important;
}
.skill-group--ai:hover { border-color: #f472b6 !important; }

/* AI badge pill */
.ai-new-badge {
  background: rgba(244,114,182,0.15);
  color: #f472b6;
  border: 1px solid rgba(244,114,182,0.3);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* AI progress bar */
.progress-bar.ai-bar  { background: linear-gradient(90deg, #e879f9, #f472b6) !important; }
.ai-bar-label         { color: #f472b6; }

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.skill-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.skill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.skill-dot--mobile { background: var(--accent-light); }
.skill-dot--web    { background: #34d399; }
.skill-dot--tools  { background: #fbbf24; }
.skill-dot--ai     { background: #f472b6; }

/* Progress bars */
.progress { background: var(--surface-border); border-radius: 999px; }
.progress-bar { border-radius: 999px; transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1); }

/* ═══════════════════════════════════════════════════════
   FOOTER / CONTACT
═══════════════════════════════════════════════════════ */
.footer-section { border-top: 1px solid var(--surface-border); }

/* ─── Contact info card ─────────────────────────────── */
.contact-info-card {
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
}

.contact-icon-wrap {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent-light);
  flex-shrink: 0;
}

/* ─── Contact form card ─────────────────────────────── */
.contact-form {
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
}

/* Inputs & selects */
.contact-input,
.contact-input:focus {
  background: var(--surface-2);
  border-color: var(--surface-border);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--surface-2);
}

.contact-input::placeholder { color: var(--text-secondary); opacity: 0.6; }

.contact-input-icon {
  background: var(--surface-border);
  border-color: var(--surface-border);
  color: var(--text-secondary);
}

.contact-input.form-select option {
  background: var(--surface-3);
  color: var(--text-primary);
}

/* Textarea resize handle */
.contact-input[rows] { resize: vertical; min-height: 130px; }

/* Char counter */
#cf-char-count { color: var(--text-secondary); font-size: 0.75rem; }

/* Success state */
.cf-success-msg {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.social-link {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition);
}

.social-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px var(--accent-glow);
}

/* ═══════════════════════════════════════════════════════
   SCROLL TO TOP BUTTON
═══════════════════════════════════════════════════════ */
.scroll-top-btn {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 999;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.scroll-top-btn.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════
   BOOTSTRAP OVERRIDES
═══════════════════════════════════════════════════════ */
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--accent-light);
  border-color: var(--accent-light);
  box-shadow: 0 0 0 0.25rem var(--accent-glow);
}

.btn-outline-primary {
  color: var(--accent-light);
  border-color: var(--accent);
}
.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.badge.text-bg-secondary {
  background: rgba(255,255,255,0.08) !important;
  color: var(--text-secondary) !important;
  font-weight: 400;
  font-size: 0.73rem;
}

/* ═══════════════════════════════════════════════════════
   BLOG
═══════════════════════════════════════════════════════ */
.blog-card {
  background: var(--surface-3);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

a.blog-post-link:hover .blog-card {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--accent-glow);
}

a.blog-post-link:hover .blog-thumb {
  transform: scale(1.05);
}

.blog-thumb {
  height: 200px;
  width: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.blog-thumb-placeholder {
  height: 200px;
  background: var(--surface-2);
}

.badge-blog {
  background: rgba(99, 102, 241, 0.15) !important;
  color: var(--accent-light) !important;
  font-size: 0.72rem;
}

.blog-title {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-date { font-size: 0.78rem; }

.blog-read-more {
  color: var(--accent-light);
  white-space: nowrap;
}

/* Skeleton shimmer */
.blog-skeleton {
  background: linear-gradient(
    90deg,
    var(--surface-border) 25%,
    var(--surface-2) 50%,
    var(--surface-border) 75%
  );
  background-size: 200% 100%;
  animation: blogShimmer 1.5s infinite;
  border-radius: 6px;
}

.blog-skeleton--thumb { height: 200px; border-radius: 0; }
.blog-skeleton--badge { height: 20px; width: 72px; }
.blog-skeleton--title { height: 16px; width: 100%; }
.blog-skeleton--text  { height: 13px; width: 100%; }

@keyframes blogShimmer {
  0%   { background-position:  200% 0; }
  100% { background-position: -200% 0; }
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE TWEAKS
═══════════════════════════════════════════════════════ */
@media (max-width: 767.98px) {
  .py-6 { padding-top: 3.5rem !important; padding-bottom: 3.5rem !important; }
  .hero-section { min-height: 100svh; }
  .display-4 { font-size: 2rem; }
  .stat-number { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}