/* ==========================================================================
   SMK Web Design — Premium Components
   Editorial luxury × technical precision
   ========================================================================== */

/* ——— GLASSMORPHISM UTILITIES ——— */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

.glass--strong {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
}

.glass--subtle {
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(var(--glass-blur-subtle));
  -webkit-backdrop-filter: blur(var(--glass-blur-subtle));
}

.glass--border {
  border-color: var(--glass-border-strong);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-2xl);
  transition:
    border-color var(--duration-normal) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo),
    transform var(--duration-normal) var(--ease-out-expo);
}

.glass-card:hover {
  border-color: var(--glass-border-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ——— BUTTONS ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  border-radius: var(--radius-full);
  transition:
    transform var(--duration-fast) var(--ease-out-expo),
    background var(--duration-fast) var(--ease-out-expo),
    border-color var(--duration-fast) var(--ease-out-expo),
    box-shadow var(--duration-fast) var(--ease-out-expo),
    color var(--duration-fast) var(--ease-out-expo);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  user-select: none;
}

.btn > * {
  position: relative;
  z-index: 2;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.22) 50%,
    transparent 60%
  );
  transform: translateX(-120%);
  transition: transform 0.7s var(--ease-out-expo);
  pointer-events: none;
  z-index: 1;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled,
.btn.is-disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* Button variants */
.btn--primary {
  background: var(--text-base);
  color: var(--ink-950);
}

.btn--primary:hover {
  background: #fff;
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(245, 245, 240, 0.15);
  transform: translateY(-2px);
}

.btn--accent {
  background: var(--signal);
  color: var(--ink-950);
  font-weight: 700;
}

.btn--accent:hover {
  background: var(--accent-light);
  box-shadow: var(--shadow-signal), 0 0 0 1px var(--signal-strong);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-base);
  border-color: var(--border-strong);
}

.btn--ghost:hover {
  border-color: rgba(245, 245, 240, 0.28);
  background: rgba(245, 245, 240, 0.03);
  transform: translateY(-2px);
}

.btn--glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-color: var(--glass-border);
  color: var(--text-base);
}

.btn--glass:hover {
  background: var(--glass-bg-strong);
  border-color: var(--glass-border-strong);
  box-shadow: var(--glass-shadow);
  transform: translateY(-2px);
}

/* Button sizes */
.btn--sm {
  padding: 8px 16px;
  font-size: var(--text-xs);
}

.btn--lg {
  padding: 14px 28px;
  font-size: var(--text-body);
}

/* Button icon support */
.btn__icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.btn--lg .btn__icon {
  width: 18px;
  height: 18px;
}

.btn__arrow {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

.btn--accent .btn__arrow {
  color: var(--ink-950);
}

/* Button loading state */
.btn.is-loading {
  pointer-events: none;
}

.btn.is-loading .btn__label {
  opacity: 0;
}

.btn.is-loading .btn__spinner {
  display: block;
}

.btn__spinner {
  display: none;
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(10, 10, 11, 0.2);
  border-top-color: var(--ink-950);
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
}

.btn--ghost .btn__spinner,
.btn--glass .btn__spinner {
  border-color: rgba(245, 245, 240, 0.15);
  border-top-color: var(--text-base);
}

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

/* Button group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ——— BADGE ——— */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(245, 245, 240, 0.03);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.badge--signal {
  border-color: var(--signal-dim);
  color: var(--signal);
}

.badge--calm {
  border-color: var(--calm-dim);
  color: var(--calm);
}

.badge__dot {
  width: 6px;
  height: 6px;
  background: var(--calm);
  border-radius: 50%;
  box-shadow: var(--shadow-calm);
  animation: badge-pulse 2.2s ease-in-out infinite;
}

@keyframes badge-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

/* ——— TECH PILL ——— */
.tech-pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  background: rgba(245, 245, 240, 0.03);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition:
    border-color var(--duration-fast) var(--ease-out-expo),
    background var(--duration-fast) var(--ease-out-expo),
    color var(--duration-fast) var(--ease-out-expo);
  white-space: nowrap;
}

.tech-pill:hover {
  border-color: var(--border-strong);
  background: rgba(245, 245, 240, 0.05);
  color: var(--text-base);
}

.tech-pill-sep {
  color: var(--text-subtle);
  font-size: var(--text-sm);
  user-select: none;
}

/* ——— SECTION INTRO ——— */
.section-intro {
  margin-bottom: var(--space-9);
  max-width: 640px;
}

.section-intro--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-intro .overline {
  display: block;
  margin-bottom: var(--space-4);
}

.section-intro__title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  color: var(--text-base);
  margin-bottom: var(--space-5);
}

.section-intro__desc {
  font-size: var(--text-lead);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

/* Legacy section title support */
.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--text-base);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.section-title svg {
  color: var(--signal);
  flex-shrink: 0;
}

.section-card {
  background: var(--surface-raised);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2xl);
  padding: clamp(var(--space-6), 4vw, var(--space-9));
  transition:
    border-color var(--duration-normal) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo);
}

.section-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.section-card__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

/* ——— PAGE HERO (inner pages) ——— */
.page-hero {
  margin-bottom: var(--space-9);
}

.page-hero__overline {
  display: block;
  margin-bottom: var(--space-4);
}

.page-hero__title {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  color: var(--text-base);
  margin-bottom: var(--space-5);
}

.page-hero__desc {
  font-size: var(--text-lead);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
  max-width: 52ch;
}

/* ——— WHATSAPP FLOAT ——— */
.whatsapp-float {
  position: fixed;
  bottom: 100px;
  right: var(--space-5);
  width: 52px;
  height: 52px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-fixed);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.35);
  transition:
    transform var(--duration-normal) var(--ease-spring),
    box-shadow var(--duration-normal) var(--ease-out-expo);
  animation: wa-breathe 3s ease-in-out infinite;
}

.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.45);
  animation: wa-ring 2.4s ease-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.08) translateY(-2px);
}

.whatsapp-float svg {
  width: 26px;
  height: 26px;
  fill: white;
}

@keyframes wa-breathe {
  0%, 100% { box-shadow: 0 8px 28px rgba(37, 211, 102, 0.35); }
  50% { box-shadow: 0 8px 36px rgba(37, 211, 102, 0.55); }
}

@keyframes wa-ring {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.45); opacity: 0; }
}

/* ——— TOAST ——— */
.toast {
  position: fixed;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: var(--space-3) var(--space-6);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-full);
  z-index: var(--z-toast);
  opacity: 0;
  transition: all var(--duration-normal) var(--ease-out-expo);
  box-shadow: var(--shadow-lg), var(--glass-shadow);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.toast.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.toast--success {
  border-color: var(--calm-dim);
}

.toast--success .toast__icon {
  color: var(--calm);
}

.toast--error {
  border-color: var(--horizon-dim);
}

.toast--error .toast__icon {
  color: var(--horizon);
}

.toast__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.toast__message {
  font-size: var(--text-sm);
  color: var(--text-base);
  white-space: nowrap;
  max-width: 75vw;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ——— FLOATING NAV ——— */
.floating-nav {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-fixed);
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius-full);
  padding: 6px 8px;
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
  box-shadow: var(--shadow-xl), var(--glass-shadow);
  transition:
    transform var(--duration-slow) var(--ease-out-expo),
    opacity var(--duration-normal) var(--ease-out-expo);
}

.floating-nav.is-hidden {
  transform: translateX(-50%) translateY(120%);
  opacity: 0;
  pointer-events: none;
}

.floating-nav__item {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-subtle);
  transition:
    transform var(--duration-normal) var(--ease-spring),
    background var(--duration-fast) var(--ease-out-expo),
    color var(--duration-fast) var(--ease-out-expo);
  position: relative;
  text-decoration: none;
}

.floating-nav__item:hover {
  color: var(--text-base);
  background: rgba(245, 245, 240, 0.06);
  transform: translateY(-3px) scale(1.08);
}

.floating-nav__item--active {
  color: var(--ink-950);
  background: var(--signal);
}

.floating-nav__item--active:hover {
  color: var(--ink-950);
  background: var(--accent-light);
  transform: translateY(-3px) scale(1.08);
}

.floating-nav__item svg {
  width: 18px;
  height: 18px;
}

/* ——— FORM ——— */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-5);
}

.form-label {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  background: var(--surface-raised);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  color: var(--text-base);
  font-size: var(--text-body);
  transition:
    border-color var(--duration-fast) var(--ease-out-expo),
    box-shadow var(--duration-fast) var(--ease-out-expo);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-subtle);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--signal-strong);
  box-shadow: 0 0 0 3px var(--signal-dim);
  animation: input-glow 0.5s var(--ease-out-expo);
}

@keyframes input-glow {
  0% { box-shadow: 0 0 0 0 rgba(200, 255, 0, 0); }
  50% { box-shadow: 0 0 0 6px rgba(200, 255, 0, 0.12); }
  100% { box-shadow: 0 0 0 3px var(--signal-dim); }
}

.form-input.is-error,
.form-textarea.is-error,
.form-select.is-error {
  border-color: var(--horizon);
  box-shadow: 0 0 0 3px var(--horizon-dim);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: var(--surface-base);
}

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

/* File input refinement */
.form-input[type="file"] {
  padding: 10px 16px;
  cursor: pointer;
}

.form-input[type="file"]::file-selector-button {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 6px 14px;
  margin-right: var(--space-3);
  background: var(--text-base);
  color: var(--ink-950);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: opacity var(--duration-fast);
}

.form-input[type="file"]::file-selector-button:hover {
  opacity: 0.85;
}

/* Form hint text */
.form-hint {
  font-size: var(--text-xs);
  color: var(--text-subtle);
  margin-top: 4px;
}

.form-hint--error {
  color: var(--horizon);
}

/* Select arrow */
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23A09E98' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-select option {
  background: var(--surface-raised);
  color: var(--text-base);
}

/* Form layout */
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .form-row--2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* ——— PAGE TRANSITION OVERLAY ——— */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  background: var(--ink-950);
  pointer-events: none;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.6s var(--ease-out-expo);
}

.page-transition.is-active {
  transform: scaleY(1);
  transform-origin: top;
}

.page-transition.is-exiting {
  transform: scaleY(0);
  transform-origin: bottom;
}

/* ——— NAV ——— */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-sticky);
  padding: var(--space-5) 0;
  transition:
    padding var(--duration-normal) var(--ease-out-expo),
    background var(--duration-normal) var(--ease-out-expo),
    border-color var(--duration-normal) var(--ease-out-expo),
    box-shadow var(--duration-normal) var(--ease-out-expo);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  padding: var(--space-3) 0;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
  border-bottom-color: var(--glass-border-strong);
  box-shadow: var(--shadow-md), var(--glass-shadow);
}

.nav--static {
  padding: var(--space-3) 0;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
  border-bottom-color: var(--glass-border-strong);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.nav__profile {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  position: relative;
}

.nav__avatar {
  width: 40px;
  height: 40px;
  background: linear-gradient(145deg, var(--surface-raised), var(--ink-950));
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--signal);
  flex-shrink: 0;
  transition:
    border-color var(--duration-fast) var(--ease-out-expo),
    box-shadow var(--duration-fast) var(--ease-out-expo),
    transform var(--duration-fast) var(--ease-out-expo);
}

.nav__profile:hover .nav__avatar {
  border-color: var(--signal);
  box-shadow: var(--shadow-signal);
  transform: scale(1.04);
}

.nav__identity {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nav__name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-base);
  letter-spacing: var(--tracking-tight);
  transition: color var(--duration-fast);
}

.nav__role {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

@media (min-width: 900px) {
  .nav__links { display: flex; }
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  transition:
    color var(--duration-fast) var(--ease-out-expo),
    background var(--duration-fast) var(--ease-out-expo);
  position: relative;
  text-decoration: none;
  cursor: pointer;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 1.5px;
  background: var(--signal);
  border-radius: 2px;
  transition:
    width var(--duration-normal) var(--ease-out-expo),
    left var(--duration-normal) var(--ease-out-expo);
}

.nav__link:hover {
  color: var(--text-base);
  background: rgba(245, 245, 240, 0.04);
}

.nav__link:hover::after {
  width: 60%;
  left: 20%;
}

.nav__link--active {
  color: var(--text-base);
}

.nav__link--active::after {
  width: 60%;
  left: 20%;
  background: var(--signal);
}

.nav__link--section-active {
  color: var(--signal);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav__socials {
  display: none;
  align-items: center;
  gap: var(--space-2);
}

@media (min-width: 1100px) {
  .nav__socials { display: flex; }
}

.nav__social-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-out-expo);
  text-decoration: none;
}

.nav__social-icon:hover {
  border-color: var(--border-strong);
  color: var(--text-base);
  background: rgba(245, 245, 240, 0.04);
}

.nav__social-icon svg {
  width: 14px;
  height: 14px;
}

.nav__menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 8px;
  background: none;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  cursor: pointer;
  transition:
    border-color var(--duration-fast) var(--ease-out-expo),
    background var(--duration-fast) var(--ease-out-expo),
    transform var(--duration-fast) var(--ease-out-expo);
}

.nav__menu-btn:hover {
  border-color: var(--border-strong);
  background: rgba(245, 245, 240, 0.03);
}

@media (min-width: 900px) {
  .nav__menu-btn { display: none; }
}

.nav__menu-line {
  width: 100%;
  height: 1.5px;
  background: var(--text-base);
  transition: all var(--duration-normal) var(--ease-out-expo);
  border-radius: 1px;
}

.nav__menu-btn.is-open .nav__menu-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__menu-btn.is-open .nav__menu-line:nth-child(2) {
  opacity: 0;
}

.nav__menu-btn.is-open .nav__menu-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ——— MOBILE MENU ——— */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-sticky) - 1);
  background: rgba(10, 10, 11, 0.95);
  backdrop-filter: blur(var(--glass-blur-strong));
  -webkit-backdrop-filter: blur(var(--glass-blur-strong));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-normal) var(--ease-out-expo),
    visibility var(--duration-normal) var(--ease-out-expo);
}

.mobile-menu::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(200, 255, 0, 0.03), transparent),
    radial-gradient(ellipse 40% 30% at 80% 80%, rgba(74, 222, 128, 0.02), transparent);
  pointer-events: none;
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-expo);
  z-index: 2;
}

@media (max-width: 900px) {
  .mobile-menu__close {
    top: calc(var(--nav-height-mobile) + var(--space-2));
  }
}

.mobile-menu__close:hover {
  border-color: var(--border-strong);
  color: var(--text-base);
  background: rgba(245, 245, 240, 0.04);
  transform: rotate(90deg);
}

.mobile-menu__close svg {
  width: 18px;
  height: 18px;
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  position: relative;
  z-index: 1;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(2rem, 8vw, 3rem);
  color: var(--text-base);
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
  text-decoration: none;
  position: relative;
}

.mobile-menu__link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -4px;
  width: 0;
  height: 1.5px;
  background: var(--signal);
  border-radius: 2px;
  transition:
    width var(--duration-normal) var(--ease-out-expo),
    left var(--duration-normal) var(--ease-out-expo);
}

.mobile-menu__link:hover {
  color: var(--signal);
}

.mobile-menu__link:hover::after {
  width: 80%;
  left: 10%;
}

.mobile-menu.is-open .mobile-menu__link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.is-open .mobile-menu__link:nth-child(1) { transition-delay: 0.08s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(2) { transition-delay: 0.14s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(4) { transition-delay: 0.26s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(5) { transition-delay: 0.32s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(6) { transition-delay: 0.38s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(7) { transition-delay: 0.44s; }
.mobile-menu.is-open .mobile-menu__link:nth-child(8) { transition-delay: 0.5s; }

/* Mobile menu close animation (reverse stagger) */
.mobile-menu:not(.is-open) .mobile-menu__link {
  transition:
    opacity 0.3s var(--ease-out-expo),
    transform 0.3s var(--ease-out-expo);
}

.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(1) { transition-delay: 0s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(2) { transition-delay: 0.02s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(3) { transition-delay: 0.04s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(4) { transition-delay: 0.06s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(5) { transition-delay: 0.08s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(6) { transition-delay: 0.1s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(7) { transition-delay: 0.12s; }
.mobile-menu:not(.is-open) .mobile-menu__link:nth-child(8) { transition-delay: 0.14s; }

.mobile-menu__actions {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-4);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
  transition-delay: 0.35s;
  position: relative;
  z-index: 1;
}

.mobile-menu.is-open .mobile-menu__actions {
  opacity: 1;
  transform: translateY(0);
}

/* ——— PRELOADER ——— */
.preloader {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  background: var(--ink-950);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1.5rem;
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    visibility var(--duration-slow) var(--ease-out-expo);
}

.preloader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader__mark {
  width: 56px;
  height: 56px;
  background: var(--signal);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--ink-950);
  animation: preloader-pulse 1.1s var(--ease-out-expo) infinite;
  box-shadow: var(--shadow-signal);
}

.preloader__bar {
  width: 120px;
  height: 2px;
  background: rgba(245, 245, 240, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.preloader__bar-fill {
  height: 100%;
  width: 0%;
  background: var(--signal);
  border-radius: 2px;
  transition: width var(--duration-normal) var(--ease-out-expo);
  box-shadow: 0 0 10px var(--signal);
}

.preloader__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

@keyframes preloader-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.06); }
}

/* ——— DIVIDER ——— */
.divider {
  height: 1px;
  background: var(--border-default);
  border: none;
  margin: 0;
}

.divider--signal {
  background: var(--signal-dim);
}

/* ——— Skeleton loading ——— */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--surface-raised) 25%,
    var(--surface-hover) 50%,
    var(--surface-raised) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

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

/* ——— Avatar ——— */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--signal), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xs);
  color: var(--ink-950);
  flex-shrink: 0;
}

.avatar--sm {
  width: 32px;
  height: 32px;
  font-size: var(--text-micro);
}

.avatar--lg {
  width: 56px;
  height: 56px;
  font-size: var(--text-body);
}

/* ——— Tag / Label (small inline) ——— */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  background: rgba(245, 245, 240, 0.03);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--text-subtle);
  white-space: nowrap;
}

.tag--signal {
  color: var(--signal);
  border-color: var(--signal-dim);
}

/* ==========================================================================
   MOBILE FIXES
   ========================================================================== */

/* Toast safe-area + avoid floating nav overlap */
@media (max-width: 768px) {
  .toast {
    bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  }
  .toast.is-visible {
    bottom: calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  }
}

/* Floating nav safe-area */
.floating-nav {
  bottom: calc(24px + env(safe-area-inset-bottom, 0px));
}

/* WhatsApp float safe-area */
.whatsapp-float {
  bottom: calc(100px + env(safe-area-inset-bottom, 0px));
}

/* btn--sm touch target */
.btn--sm {
  padding: 10px 16px;
  min-height: 44px;
}

/* Service card hover reset on touch */
@media (hover: none) {
  .service-card:hover {
    transform: none;
    border-color: var(--glass-border);
    box-shadow: var(--glass-shadow);
  }
  .service-card:hover::after {
    opacity: 0;
  }
  .service-card:hover .service-card__icon-ring {
    transform: none;
    opacity: 0;
  }
  .service-card:hover .service-card__icon svg {
    transform: none;
  }
  .service-card:hover .service-card__tag {
    color: var(--text-subtle);
  }
  .service-card:hover .service-card__shine {
    opacity: 0;
    transform: translateX(-100%) skewX(-20deg);
  }
  .service-card:hover .service-card__accent-line {
    right: 60%;
    opacity: 0.4;
  }
}

/* Project card hover reset on touch */
@media (hover: none) {
  .project-card:hover {
    transform: none;
    border-color: var(--border-default);
    box-shadow: none;
  }
  .project-card:hover .project-card__img-wrap::after {
    opacity: 0.7;
  }
  .project-card:hover .project-card__img {
    transform: none;
  }
  .project-card:hover .project-card__tag {
    border-color: var(--border-subtle);
    color: var(--text-subtle);
  }
  .project-card:hover::after {
    opacity: 0;
  }
  .project-card__meta {
    opacity: 0.7;
    transform: none;
  }
}