/* ═══════════════════════════════════════════════════════
   COMPONENTS — Nav, Cards, Buttons, Modal, Form
   ═══════════════════════════════════════════════════════ */

/* ══════════════ NAVIGATION ══════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  padding: var(--space-md) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--duration-normal) var(--ease-out-quart),
              backdrop-filter var(--duration-normal) var(--ease-out-quart);
}

.navbar.scrolled {
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-nav);
  letter-spacing: var(--ls-wide);
  color: var(--color-text);
}

.nav-brand span {
  color: var(--color-accent);
}

.nav-email {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}
.nav-email:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

/* Text slide-up hover effect (moncy.dev signature) */
.nav-link {
  position: relative;
  font-family: var(--font-body);
  font-size: var(--fs-nav);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  overflow: hidden;
  display: inline-flex;
  flex-direction: column;
  height: 1.2em;
  transition: color var(--duration-fast);
}

.nav-link span {
  display: block;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav-link:hover span,
.nav-link.active span {
  transform: translateY(-100%);
}

.nav-link .nav-link-dup {
  color: var(--color-accent);
}

.nav-link.active {
  color: var(--color-accent);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: calc(var(--z-nav) + 10);
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--duration-normal) var(--ease-out-expo),
              opacity var(--duration-fast);
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile overlay */
.nav-mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(5, 5, 5, 0.95);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: var(--z-nav);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.nav-mobile-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile-overlay a {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

.nav-mobile-overlay a:hover {
  color: var(--color-accent);
}

/* ══════════════ LEFT SIDEBAR ══════════════ */

.sidebar {
  position: fixed;
  left: var(--container-padding);
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--z-sidebar);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.sidebar a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: color var(--duration-fast), transform var(--duration-fast);
}

.sidebar a:hover {
  color: var(--color-accent);
  transform: scale(1.2);
}

.sidebar svg {
  width: 18px;
  height: 18px;
}

/* ══════════════ BENTO CARDS ══════════════ */

.bento-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: border-color var(--duration-normal) var(--ease-out-quart),
              transform var(--duration-normal) var(--ease-out-quart),
              box-shadow var(--duration-normal) var(--ease-out-quart);
}

.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    var(--color-accent-glow),
    transparent 40%
  );
  opacity: 0;
  transition: opacity var(--duration-normal);
  pointer-events: none;
  z-index: 0;
}

.bento-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(184, 169, 232, 0.06);
}

.bento-card:hover::before {
  opacity: 1;
}

.bento-card > * {
  position: relative;
  z-index: 1;
}

.bento-card .card-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.bento-card .card-title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-xs);
}

.bento-card .card-desc {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  line-height: var(--lh-normal);
}

.bento-card.header-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.bento-card.header-card .card-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}

/* ══════════════ PROJECT CARDS ══════════════ */

.project-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--duration-normal) var(--ease-out-quart),
              transform var(--duration-normal) var(--ease-out-quart);
}

.project-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.project-card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-card);
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.project-card:hover .project-card-image img {
  transform: scale(1.05);
}

.project-card-body {
  padding: var(--space-md) var(--space-lg);
}

.project-number {
  font-family: var(--font-display);
  font-size: var(--fs-project-num);
  font-weight: var(--fw-extrabold);
  color: var(--color-text-dim);
  line-height: 1;
  letter-spacing: var(--ls-tight);
}

.project-card-info {
  margin-top: var(--space-xs);
}

.project-card-title {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: 4px;
}

.project-card-category {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tag {
  font-size: var(--fs-tag);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-dim);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* ══════════════ MODAL ══════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: var(--color-bg-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out-expo);
  padding: var(--space-lg);
  overflow-y: auto;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-xl);
  position: relative;
  transform: translateY(40px) scale(0.95);
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.modal-overlay.open .modal-content {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  transition: color var(--duration-fast), transform var(--duration-fast);
  z-index: 10;
}

.modal-close:hover {
  color: var(--color-accent);
  transform: rotate(90deg);
}

.modal-image {
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-bg-card);
}

.modal-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: var(--fw-extrabold);
  margin-bottom: var(--space-xs);
}

.modal-category {
  font-size: var(--fs-small);
  color: var(--color-accent);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.modal-desc {
  color: var(--color-text-muted);
  line-height: var(--lh-normal);
  margin-bottom: var(--space-lg);
}

.modal-links {
  display: flex;
  gap: var(--space-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-out-quart);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-primary:hover {
  background: #c9bdf0;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(184, 169, 232, 0.3);
}

.btn-outline {
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ══════════════ CONTACT FORM ══════════════ */

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--fs-body);
  transition: border-color var(--duration-fast),
              box-shadow var(--duration-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

/* ══════════════ SOCIAL LINK ══════════════ */

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-body);
  color: var(--color-text);
  position: relative;
  padding-bottom: 2px;
}

.social-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out-expo);
}

.social-link:hover::after {
  width: 100%;
}

.social-link:hover {
  color: var(--color-accent);
}

.social-link .arrow {
  font-size: 0.8em;
  transition: transform var(--duration-fast);
}

.social-link:hover .arrow {
  transform: translate(2px, -2px);
}