/**
 * ============================================================
 * STYLESHEET PORTOFOLIO - IZZAN NUHA ZAMRONI
 * ============================================================
 * Struktur:
 * 1. Base & Reset
 * 2. Navbar & Links
 * 3. Hero & Glow Effects
 * 4. Buttons
 * 5. Statistics
 * 6. Section Titles
 * 7. Cards & Badges
 * 8. Experience Timeline
 * 9. Certificate Filter & Cards
 * 10. Contact Form
 * 11. Modal Dialog
 * 12. Animations & Accessibility
 */

/* ============================================================
   1. BASE & RESET
   ============================================================ */
html {
  scroll-padding-top: 5rem;
}

::selection {
  background: #22d3ee;
  color: #0a192f;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-thumb {
  background: #1d3557;
  border-radius: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

/* ============================================================
   2. NAVBAR & LINKS
   ============================================================ */
#navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.08);
}

.dark #navbar.scrolled {
  background: rgba(6, 16, 33, 0.85);
  box-shadow: 0 1px 0 rgba(34, 211, 238, 0.12);
}

.nav-link {
  position: relative;
  padding: 0.25rem 0;
  color: inherit;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: #22d3ee;
  transition: width 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #0891b2;
}

.dark .nav-link:hover,
.dark .nav-link.active {
  color: #22d3ee;
}

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

.mobile-link {
  display: block;
  padding: 0.75rem 0.5rem;
  border-radius: 0.5rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-link:hover {
  background: rgba(34, 211, 238, 0.12);
  color: #0891b2;
}

.dark .mobile-link:hover {
  color: #22d3ee;
}

/* ============================================================
   3. HERO & GLOW EFFECTS
   ============================================================ */
.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(600px circle at 15% 20%, rgba(34, 211, 238, 0.18), transparent 60%),
    radial-gradient(500px circle at 85% 10%, rgba(29, 53, 87, 0.25), transparent 60%);
}

.dark .hero-glow {
  background:
    radial-gradient(600px circle at 15% 20%, rgba(34, 211, 238, 0.14), transparent 60%),
    radial-gradient(500px circle at 85% 10%, rgba(29, 53, 87, 0.7), transparent 60%);
}

/* Foto Profil Hero */
.profile-wrapper {
  position: relative;
  max-width: 340px;
  margin: 0 auto;
}

.profile-frame {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 1.75rem;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(29, 53, 87, 0.3));
  border: 2px solid rgba(34, 211, 238, 0.4);
  box-shadow: 0 20px 40px -15px rgba(8, 145, 178, 0.3);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.dark .profile-frame {
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.6);
}

.profile-frame:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: #22d3ee;
  box-shadow: 0 25px 50px -12px rgba(34, 211, 238, 0.5);
}

.profile-glow {
  position: absolute;
  inset: -15px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.28) 0%, transparent 70%);
  filter: blur(25px);
  z-index: -1;
  pointer-events: none;
}

.profile-badge {
  position: absolute;
  bottom: -10px;
  right: -8px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(34, 211, 238, 0.4);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12);
  font-size: 0.8rem;
  font-weight: 700;
  color: #0a192f;
}

.dark .profile-badge {
  background: rgba(17, 34, 64, 0.95);
  border-color: rgba(34, 211, 238, 0.35);
  color: #ffffff;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

/* ============================================================
   4. BUTTONS
   ============================================================ */
.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 0.6rem;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: #22d3ee;
  color: #0a192f;
  box-shadow: 0 6px 20px -6px rgba(34, 211, 238, 0.6);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -6px rgba(34, 211, 238, 0.75);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  border: 1.5px solid #0891b2;
  color: #0891b2;
}

.btn-outline:hover {
  background: rgba(34, 211, 238, 0.12);
  transform: translateY(-2px);
}

.dark .btn-outline {
  border-color: #22d3ee;
  color: #22d3ee;
}

/* ============================================================
   5. STATISTICS
   ============================================================ */
.stat-card {
  padding: 1rem;
  text-align: center;
  border-radius: 0.9rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.dark .stat-card {
  background: #112240;
  border-color: #1d3557;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: #22d3ee;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: #0a192f;
}

.dark .stat-value {
  color: #22d3ee;
}

.stat-label {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: #64748b;
}

.dark .stat-label {
  color: #94a3b8;
}

@media (min-width: 640px) {
  .stat-value {
    font-size: 2.5rem;
  }
  .stat-label {
    font-size: 0.85rem;
  }
}

/* ============================================================
   6. SECTION TITLES
   ============================================================ */
.section-title {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #0a192f;
}

.dark .section-title {
  color: #ffffff;
}

.section-title::after {
  content: "";
  display: block;
  width: 3.5rem;
  height: 4px;
  margin-top: 0.6rem;
  border-radius: 4px;
  background: #22d3ee;
}

.section-sub {
  margin-top: 0.9rem;
  max-width: 40rem;
  color: #64748b;
}

.dark .section-sub {
  color: #94a3b8;
}

.group-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #0891b2;
}

.dark .group-title {
  color: #22d3ee;
}

/* ============================================================
   7. CARDS & BADGES
   ============================================================ */
.card {
  padding: 1.5rem;
  border-radius: 1rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.dark .card {
  background: #112240;
  border-color: #1d3557;
}

.card:hover {
  transform: translateY(-4px);
  border-color: #22d3ee;
  box-shadow: 0 14px 30px -14px rgba(8, 145, 178, 0.45);
}

.card-title {
  margin-top: 0.25rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: #0a192f;
}

.dark .card-title {
  color: #ffffff;
}

.card-text {
  margin-top: 0.5rem;
  font-size: 0.925rem;
  line-height: 1.65;
}

.icon-box {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 0.75rem;
  background: rgba(34, 211, 238, 0.12);
  color: #0891b2;
}

.dark .icon-box {
  color: #22d3ee;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.12);
  color: #0e7490;
}

.dark .tag {
  color: #67e8f9;
}

/* ============================================================
   8. EXPERIENCE TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 1.75rem;
  border-left: 2px solid #cbd5e1;
}

.dark .timeline {
  border-color: #1d3557;
}

.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
}

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

.timeline-dot {
  position: absolute;
  left: calc(-1.75rem - 7px);
  top: 1.6rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.25);
}

/* ============ Foto Dokumentasi Pengalaman ============ */
.photo-slot {
  position: relative;
  overflow: hidden;
  border-radius: 0.65rem;
  aspect-ratio: 4 / 3;
  background: #f1f5f9;
  border: 1px dashed #cbd5e1;
  cursor: pointer;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.dark .photo-slot {
  background: #0a192f;
  border-color: #1d3557;
}

.photo-slot:hover {
  border-color: #22d3ee;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -6px rgba(34, 211, 238, 0.25);
}

.photo-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.photo-slot:hover img {
  transform: scale(1.06);
}

.photo-slot .placeholder-box {
  display: none;
  position: absolute;
  inset: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  text-align: center;
}

.photo-slot.has-placeholder .placeholder-box {
  display: flex;
}

.photo-slot.has-placeholder img {
  display: none;
}

.photo-slot.has-placeholder .zoom-overlay {
  display: none;
}

.photo-slot .zoom-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 16, 33, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.photo-slot:hover .zoom-overlay {
  opacity: 1;
}

/* ============ Lightbox Modal ============ */
#image-lightbox.open {
  display: flex;
}

#image-lightbox.open #lightbox-dialog {
  animation: modalIn 0.3s ease both;
}

/* ============================================================
   9. CERTIFICATE FILTER & CARDS
   ============================================================ */
.filter-btn {
  padding: 0.5rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1.5px solid #cbd5e1;
  color: #475569;
  transition: all 0.2s ease;
}

.dark .filter-btn {
  border-color: #1d3557;
  color: #94a3b8;
}

.filter-btn:hover {
  border-color: #22d3ee;
  color: #0891b2;
}

.filter-btn.active {
  background: #22d3ee;
  border-color: #22d3ee;
  color: #0a192f;
}

.cert-card {
  text-align: left;
  width: 100%;
  cursor: pointer;
  animation: certIn 0.4s ease both;
}

.cert-card:focus-visible {
  outline: 3px solid #22d3ee;
  outline-offset: 3px;
}

@keyframes certIn {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   10. CONTACT FORM
   ============================================================ */
.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 0.9rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.dark .contact-item {
  background: #112240;
  border-color: #1d3557;
}

a.contact-item:hover {
  transform: translateX(4px);
  border-color: #22d3ee;
}

.form-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #0a192f;
}

.dark .form-label {
  color: #e2e8f0;
}

.form-input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: 0.6rem;
  border: 1.5px solid #cbd5e1;
  background: #f8fafc;
  color: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.dark .form-input {
  background: #0a192f;
  border-color: #1d3557;
}

.form-input:focus {
  outline: none;
  border-color: #22d3ee;
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.25);
}

.form-input.invalid {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-input.valid {
  border-color: #10b981;
}

.form-error {
  min-height: 1.1rem;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: #ef4444;
}

/* ============================================================
   11. MODAL DIALOG
   ============================================================ */
#cert-modal.open {
  display: flex;
}

#cert-modal.open #modal-panel {
  animation: modalIn 0.3s ease both;
}

#cert-modal.open #modal-backdrop {
  animation: fadeIn 0.3s ease both;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ============================================================
   12. ANIMATIONS & ACCESSIBILITY
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Pengurangan gerak untuk pengguna dengan prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}