/* ==========================================================================
   Custom stylesheet
   Berisi animasi, override, dan utilitas yang tidak disediakan Tailwind CDN.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Dasar
   -------------------------------------------------------------------------- */
html {
  scroll-behavior: smooth;
  /* offset supaya judul section tidak tertutup navbar sticky */
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  overflow-x: hidden;
}

::selection {
  background-color: #06b6d4;
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   2. Scrollbar
   -------------------------------------------------------------------------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background-color: #cbd5e1;
  border-radius: 9999px;
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #94a3b8;
  background-clip: content-box;
}

.dark ::-webkit-scrollbar-thumb {
  background-color: #334155;
  background-clip: content-box;
}

.dark ::-webkit-scrollbar-thumb:hover {
  background-color: #475569;
  background-clip: content-box;
}

/* --------------------------------------------------------------------------
   3. Teks gradien & aksen
   -------------------------------------------------------------------------- */
.text-gradient {
  background-image: linear-gradient(120deg, #06b6d4 0%, #0ea5e9 45%, #3b82f6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* garis bawah animasi untuk link navigasi */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0.15rem;
  height: 2px;
  width: 0;
  border-radius: 9999px;
  background-image: linear-gradient(90deg, #06b6d4, #3b82f6);
  transition: width 0.3s ease;
}

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

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

.dark .nav-link.is-active {
  color: #67e8f9;
}

/* --------------------------------------------------------------------------
   4. Latar belakang dekoratif (blob)
   -------------------------------------------------------------------------- */
.blob {
  position: absolute;
  border-radius: 9999px;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  will-change: transform;
}

.dark .blob {
  opacity: 0.22;
}

.blob-1 {
  width: 22rem;
  height: 22rem;
  top: -6rem;
  left: -6rem;
  background: radial-gradient(circle at 30% 30%, #06b6d4, #0ea5e9);
  animation: blob-float 14s ease-in-out infinite;
}

.blob-2 {
  width: 20rem;
  height: 20rem;
  bottom: -4rem;
  right: -4rem;
  background: radial-gradient(circle at 60% 40%, #3b82f6, #22d3ee);
  animation: blob-float 18s ease-in-out infinite reverse;
}

@keyframes blob-float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(28px, -32px) scale(1.08);
  }
  66% {
    transform: translate(-24px, 20px) scale(0.94);
  }
}

/* pola grid halus */
.bg-grid {
  background-image: linear-gradient(rgba(100, 116, 139, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100, 116, 139, 0.09) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* --------------------------------------------------------------------------
   5. Scroll reveal
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* kartu proyek muncul berurutan */
.reveal[data-delay='1'] {
  transition-delay: 0.08s;
}
.reveal[data-delay='2'] {
  transition-delay: 0.16s;
}
.reveal[data-delay='3'] {
  transition-delay: 0.24s;
}
.reveal[data-delay='4'] {
  transition-delay: 0.32s;
}
.reveal[data-delay='5'] {
  transition-delay: 0.4s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .blob {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   6. Tombol
   -------------------------------------------------------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background-color 0.25s ease,
    border-color 0.25s ease, color 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary {
  background-image: linear-gradient(120deg, #06b6d4, #0ea5e9 50%, #3b82f6);
  color: #ffffff;
  box-shadow: 0 10px 24px -10px rgba(6, 182, 212, 0.85);
}

.btn-primary:hover {
  box-shadow: 0 16px 34px -10px rgba(14, 165, 233, 0.9);
}

.btn-ghost {
  border: 1px solid rgba(148, 163, 184, 0.45);
  color: inherit;
}

.btn-ghost:hover {
  border-color: #06b6d4;
  color: #0891b2;
}

.dark .btn-ghost:hover {
  border-color: #22d3ee;
  color: #a5f3fc;
}

/* --------------------------------------------------------------------------
   7. Kartu
   -------------------------------------------------------------------------- */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(6, 182, 212, 0.55);
  box-shadow: 0 22px 45px -22px rgba(30, 41, 59, 0.45);
}

.dark .card:hover {
  border-color: rgba(34, 211, 238, 0.5);
  box-shadow: 0 22px 45px -22px rgba(0, 0, 0, 0.85);
}

/* ikon di dalam kartu skill */
.skill-icon {
  transition: transform 0.3s ease;
}

.card:hover .skill-icon {
  transform: scale(1.12) rotate(-4deg);
}

/* --------------------------------------------------------------------------
   8. Pemilih bahasa (ID / EN)
   -------------------------------------------------------------------------- */
.lang-btn {
  padding: 0.3rem 0.55rem;
  border-radius: 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  color: #64748b;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.lang-btn:hover {
  color: #0891b2;
}

.lang-btn[aria-pressed='true'] {
  background-image: linear-gradient(120deg, #06b6d4, #3b82f6);
  color: #ffffff;
  box-shadow: 0 6px 14px -6px rgba(6, 182, 212, 0.9);
}

.dark .lang-btn {
  color: #94a3b8;
}

.dark .lang-btn:hover {
  color: #67e8f9;
}

/* --------------------------------------------------------------------------
   8b. Badge teknologi (pengganti progress bar)
   -------------------------------------------------------------------------- */
.tag {
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.card:hover .tag {
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   9. Hamburger
   -------------------------------------------------------------------------- */
.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 9999px;
  background-color: currentColor;
  transition: transform 0.3s ease, opacity 0.2s ease;
}

.hamburger-line + .hamburger-line {
  margin-top: 5px;
}

.menu-open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.menu-open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* panel menu mobile */
#mobile-menu {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.25s ease;
}

#mobile-menu.menu-open {
  max-height: 26rem;
  opacity: 1;
}

/* --------------------------------------------------------------------------
   10. Avatar
   -------------------------------------------------------------------------- */
.avatar-ring {
  background: conic-gradient(from 140deg, #06b6d4, #0ea5e9, #3b82f6, #06b6d4);
  animation: ring-spin 9s linear infinite;
}

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

@media (prefers-reduced-motion: reduce) {
  .avatar-ring {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   11. Tombol back-to-top
   -------------------------------------------------------------------------- */
#back-to-top {
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}

#back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   12. Status dot (available badge)
   -------------------------------------------------------------------------- */
.status-dot {
  position: relative;
  display: inline-flex;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 9999px;
  background-color: #22c55e;
}

.status-dot::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  background-color: #22c55e;
  animation: pulse-ring 1.8s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(1);
    opacity: 0.75;
  }
  100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

/* --------------------------------------------------------------------------
   13. Form
   -------------------------------------------------------------------------- */
.field {
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.field:focus {
  outline: none;
  border-color: #06b6d4;
  box-shadow: 0 0 0 4px rgba(6, 182, 212, 0.16);
}

.dark .field:focus {
  border-color: #22d3ee;
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.2);
}

/* --------------------------------------------------------------------------
   14. State dinamis yang ditambahkan JavaScript
   Ditulis sebagai class CSS sendiri agar tidak bergantung pada pemindaian
   class oleh Tailwind Play CDN saat runtime.
   -------------------------------------------------------------------------- */

/* navbar mendapat bayangan setelah halaman di-scroll */
#navbar.nav-scrolled {
  box-shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.18);
}

.dark #navbar.nav-scrolled {
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.7);
}

/* kolom form yang tidak valid */
.field.is-invalid,
.field.is-invalid:focus {
  border-color: #f43f5e;
  box-shadow: 0 0 0 4px rgba(244, 63, 94, 0.16);
}

.dark .field.is-invalid,
.dark .field.is-invalid:focus {
  border-color: #fb7185;
  box-shadow: 0 0 0 4px rgba(251, 113, 133, 0.2);
}

/* tombol yang sedang mengirim data */
.btn.is-busy {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
  transform: none;
}

/* --------------------------------------------------------------------------
   15. Utilitas cetak
   -------------------------------------------------------------------------- */
@media print {
  #navbar,
  #back-to-top,
  #mobile-menu,
  .blob {
    display: none !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}