/* =========================================================
   COMPONENTS.CSS — Reusable UI building blocks
========================================================= */

/* ---------------------------------------------
   Scroll progress bar
--------------------------------------------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-brand);
  z-index: calc(var(--z-navbar) + 1);
  transition: width 80ms linear;
}

/* ---------------------------------------------
   Navbar
--------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-navbar);
  padding-block: var(--space-md);
  transition: background-color var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              padding var(--duration-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.navbar.is-scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom-color: var(--border-color);
  padding-block: 0.65rem;
}

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

.navbar__logo-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.navbar__logo-dot {
  color: var(--accent-secondary);
}

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

.navbar__link {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding-block: 4px;
  transition: color var(--duration-fast) var(--ease-out);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gradient-brand);
  transition: width var(--duration-base) var(--ease-out);
}

.navbar__link:hover,
.navbar__link.is-active {
  color: var(--text-primary);
}

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

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

.navbar__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}

.navbar__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-fast);
}

.navbar__burger[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__burger[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
}
.navbar__burger[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------------------------------------------
   Theme toggle
--------------------------------------------- */
.theme-toggle {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  position: relative;
  transition: border-color var(--duration-fast), color var(--duration-fast);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-color-strong);
}

.theme-toggle__icon {
  position: absolute;
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}

.theme-toggle__icon--moon { opacity: 1; transform: scale(1) rotate(0); }
.theme-toggle__icon--sun { opacity: 0; transform: scale(0.5) rotate(-90deg); }

[data-theme='light'] .theme-toggle__icon--moon { opacity: 0; transform: scale(0.5) rotate(90deg); }
[data-theme='light'] .theme-toggle__icon--sun { opacity: 1; transform: scale(1) rotate(0); }

/* ---------------------------------------------
   Buttons
--------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-sm);
  border-radius: var(--radius-full);
  padding: 0.75rem 1.4rem;
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  position: relative;
  isolation: isolate;
}

.btn--primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn--ghost {
  color: var(--text-primary);
  border: 1px solid var(--border-color-strong);
}

.btn--ghost:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.btn--outline {
  border: 1px solid var(--border-color-strong);
  color: var(--text-primary);
  background: transparent;
}

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

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--fs-xs);
}

.btn--lg {
  padding: 0.9rem 1.75rem;
  font-size: var(--fs-base);
}

.btn--full {
  width: 100%;
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
}

.btn.is-loading .btn__label { opacity: 0.6; }
.btn.is-loading .btn__spinner { display: inline-block; animation: spin 0.7s linear infinite; }

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

/* ---------------------------------------------
   Glass card base
--------------------------------------------- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--radius-lg);
}

/* ---------------------------------------------
   Service cards
--------------------------------------------- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: transform var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-strong);
  box-shadow: var(--shadow-lg);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--gradient-brand-soft);
  color: var(--accent-secondary);
  margin-bottom: var(--space-lg);
}

.service-card__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-sm);
}

.service-card__text {
  font-size: var(--fs-sm);
}

/* ---------------------------------------------
   Stat cards
--------------------------------------------- */
.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: left;
}

.stat-card__num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-card__label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

/* ---------------------------------------------
   Skill bars
--------------------------------------------- */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.skills__category {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.skills__category-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-md);
  margin-bottom: var(--space-lg);
}

.skills__category-icon {
  color: var(--accent-secondary);
  display: grid;
  place-items: center;
}

.skill-bar { margin-bottom: var(--space-md); }
.skill-bar:last-child { margin-bottom: 0; }

.skill-bar__head {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-sm);
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.skill-bar__pct {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: var(--fs-xs);
}

.skill-bar__track {
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--bg-elevated-2);
  overflow: hidden;
}

.skill-bar__fill {
  height: 100%;
  width: 0%;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  transition: width 1.1s var(--ease-out);
}

/* ---------------------------------------------
   Portfolio filters + project cards
--------------------------------------------- */
.portfolio__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--duration-fast) var(--ease-out);
}

.filter-btn:hover {
  border-color: var(--border-color-strong);
  color: var(--text-primary);
}

.filter-btn.is-active {
  background: var(--gradient-brand);
  border-color: transparent;
  color: #fff;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
  transform-style: preserve-3d;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.project-card.is-hidden {
  display: none;
}

.project-card__thumb {
  height: 180px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.project-card__thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.9;
}

.project-card__thumb--1::before { background: linear-gradient(135deg, #6366f1, #22d3ee); }
.project-card__thumb--2::before { background: linear-gradient(135deg, #a855f7, #6366f1); }
.project-card__thumb--3::before { background: linear-gradient(135deg, #22d3ee, #34d399); }
.project-card__thumb--4::before { background: linear-gradient(135deg, #f87171, #a855f7); }
.project-card__thumb--5::before { background: linear-gradient(135deg, #6366f1, #a855f7); }
.project-card__thumb--6::before { background: linear-gradient(135deg, #22d3ee, #6366f1); }

.project-card__tag-icon {
  position: relative;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-2xl);
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.05em;
}

.project-card__body {
  padding: var(--space-lg);
}

.project-card__tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  background: var(--bg-elevated-2);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.project-card__title {
  font-size: var(--fs-md);
  margin-bottom: var(--space-xs);
}

.project-card__text {
  font-size: var(--fs-sm);
  margin-bottom: var(--space-md);
}

.project-card__links {
  display: flex;
  gap: var(--space-md);
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--accent-secondary);
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
  padding: 0;
}

.project-card__link:hover {
  text-decoration: underline;
}

/* ---------------------------------------------
   Timeline (Experience)
--------------------------------------------- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline__line {
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--border-color);
}

.timeline__line-fill {
  width: 100%;
  height: 0%;
  background: var(--gradient-brand);
  transition: height 1s var(--ease-out);
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-2xl);
}

.timeline__item:last-child { margin-bottom: 0; }

.timeline__dot {
  position: absolute;
  left: -40px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-primary);
}

.timeline__card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-xl);
}

.timeline__date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--accent-secondary);
}

.timeline__title {
  font-size: var(--fs-lg);
  margin-block: 4px;
}

.timeline__org {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.timeline__text {
  font-size: var(--fs-sm);
}

/* ---------------------------------------------
   Education cards
--------------------------------------------- */
.education__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.edu-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: border-color var(--duration-base), transform var(--duration-base);
}

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

.edu-card__icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--gradient-brand-soft);
  color: var(--accent-tertiary);
  margin-bottom: var(--space-md);
}

.edu-card__date {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.edu-card__title {
  font-size: var(--fs-base);
  margin-block: 6px 4px;
}

.edu-card__org {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* ---------------------------------------------
   Testimonial carousel
--------------------------------------------- */
.testimonial-carousel {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

/* .testimonial-track {
  position: relative;
  min-height: 220px;
} */

.testimonial-track {
  position: relative;
  /* min-height: 220px; */
  /* transition: height 0.4s var(--ease-out);
  overflow: hidden; */
}

/* .testimonial-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}

.testimonial-slide.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
} */

.testimonial-slide {
  display: none;
}

.testimonial-slide.is-active {
  display: block;
  animation: testimonial-fade-in 0.4s var(--ease-out);
}

@keyframes testimonial-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.testimonial-slide__quote {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 500;
  line-height: var(--lh-relaxed);
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
}

.testimonial-slide__author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: var(--fs-sm);
  text-align: left;
}

.avatar-initials {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--gradient-brand);
  color: #fff;
  font-weight: 700;
  font-size: var(--fs-sm);
  flex-shrink: 0;
}

.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.testimonial-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.testimonial-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.testimonial-dots {
  display: flex;
  gap: 8px;
}

.testimonial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-color-strong);
  transition: background var(--duration-fast), transform var(--duration-fast);
}

.testimonial-dot.is-active {
  background: var(--gradient-brand);
  transform: scale(1.3);
}

/* ---------------------------------------------
   Process steps
--------------------------------------------- */
.process__steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-lg);
  counter-reset: step;
}

.process__step {
  position: relative;
  padding-top: var(--space-lg);
  border-top: 2px solid var(--border-color);
  transition: border-color var(--duration-base);
}

.process__step:hover {
  border-color: var(--accent-primary);
}

.process__step-num {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--accent-secondary);
  display: block;
  margin-bottom: var(--space-sm);
}

.process__step-title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-xs);
}

.process__step-text {
  font-size: var(--fs-sm);
}

/* ---------------------------------------------
   Tech marquee + grid
--------------------------------------------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--border-color);
  padding-block: var(--space-lg);
  margin-block: var(--space-2xl);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.marquee__track {
  display: flex;
  gap: var(--space-3xl);
  width: max-content;
  animation: marquee-scroll 32s linear infinite;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.marquee__item {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.tech-grid__cat {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.tech-grid__cat h4 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-xs);
  color: var(--accent-secondary);
}

.tech-grid__cat p {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

/* ---------------------------------------------
   FAQ Accordion
--------------------------------------------- */
.accordion__item {
  border-bottom: 1px solid var(--border-color);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
  gap: var(--space-md);
}

.accordion__icon {
  flex-shrink: 0;
  transition: transform var(--duration-base) var(--ease-out);
  color: var(--accent-secondary);
}

.accordion__trigger[aria-expanded='true'] .accordion__icon {
  transform: rotate(180deg);
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-base) var(--ease-out);
}

.accordion__panel p {
  padding-bottom: var(--space-lg);
  font-size: var(--fs-sm);
  max-width: 640px;
}

/* ---------------------------------------------
   Contact form
--------------------------------------------- */
.contact__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-block: var(--space-lg);
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  width: fit-content;
}

.contact__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-block: var(--space-lg);
}

.contact__list-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

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

.contact__list-icon {
  color: var(--accent-primary);
  display: grid;
  place-items: center;
}

.contact__socials {
  display: flex;
  gap: 12px;
  margin-top: var(--space-lg);
}

.social-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.social-icon:hover {
  color: #fff;
  background: var(--gradient-brand);
  border-color: transparent;
  transform: translateY(-3px);
}

.contact__form {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

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

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(var(--accent-primary-rgb), 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group.has-error .form-input {
  border-color: var(--error);
  animation: shake 0.35s;
}

.form-error {
  display: block;
  font-size: var(--fs-xs);
  color: var(--error);
  margin-top: 6px;
  min-height: 1em;
}

.form-success {
  margin-top: var(--space-md);
  font-size: var(--fs-sm);
  color: var(--success);
  text-align: center;
  min-height: 1em;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* ---------------------------------------------
   Footer
--------------------------------------------- */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-3xl);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.footer__brand {
  max-width: 320px;
}

.footer__tagline {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

.footer__links {
  display: flex;
  gap: var(--space-3xl);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col h4 {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  font-weight: 500;
}

.footer__col a {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.footer__col a:hover {
  color: var(--accent-secondary);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  padding-block: var(--space-lg);
  border-top: 1px solid var(--border-color);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ---------------------------------------------
   Floating buttons (WhatsApp / scroll-top)
--------------------------------------------- */
.floating-btn {
  position: fixed;
  right: var(--space-xl);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-floating);
  transition: transform var(--duration-fast) var(--ease-out), opacity var(--duration-fast);
}

.floating-btn:hover {
  transform: translateY(-4px) scale(1.05);
}

.floating-btn--whatsapp {
  bottom: var(--space-xl);
  background: #25d366;
  color: #fff;
}

.floating-btn--scrolltop {
  bottom: calc(var(--space-xl) + 64px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color-strong);
  color: var(--text-primary);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
}

.floating-btn--scrolltop.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------------------------------------------
   AI Chatbot widget
--------------------------------------------- */
.chatbot {
  position: fixed;
  right: var(--space-xl);
  bottom: calc(var(--space-xl) + 128px);
  z-index: var(--z-chatbot);
}

.chatbot__toggle {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-glow);
  position: relative;
  transition: transform var(--duration-fast) var(--ease-out);
}

.chatbot__toggle:hover {
  transform: scale(1.06);
}

.chatbot__toggle-icon {
  position: absolute;
  transition: opacity var(--duration-fast), transform var(--duration-fast);
}

.chatbot__toggle-icon--close { opacity: 0; transform: rotate(-90deg) scale(0.6); }

.chatbot.is-open .chatbot__toggle-icon--open { opacity: 0; transform: rotate(90deg) scale(0.6); }
.chatbot.is-open .chatbot__toggle-icon--close { opacity: 1; transform: rotate(0) scale(1); }

.chatbot__window {
  position: absolute;
  bottom: 74px;
  right: 0;
  width: 340px;
  max-height: 480px;
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.96);
  transform-origin: bottom right;
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out),
              visibility var(--duration-base);
}

.chatbot.is-open .chatbot__window {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.chatbot__header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-elevated-2);
}

.chatbot__header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chatbot__avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.chatbot__name {
  font-size: var(--fs-sm);
  font-weight: 600;
}

.chatbot__status {
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

.chatbot__status .status-dot {
  width: 6px;
  height: 6px;
}

.chatbot__messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 180px;
  max-height: 260px;
}

.chatbot__message {
  font-size: var(--fs-sm);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  max-width: 85%;
  line-height: var(--lh-normal);
  animation: chat-in var(--duration-base) var(--ease-out);
}

@keyframes chat-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.chatbot__message--bot {
  background: var(--bg-elevated-2);
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chatbot__message--user {
  background: var(--gradient-brand);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.chatbot__quick-replies {
  display: flex;
  gap: 6px;
  padding: 0 var(--space-md) var(--space-sm);
  flex-wrap: wrap;
}

.chip {
  font-size: 0.7rem;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

.chip:hover {
  border-color: var(--accent-primary);
  color: var(--accent-secondary);
}

.chatbot__input-row {
  display: flex;
  gap: 8px;
  padding: var(--space-sm);
  border-top: 1px solid var(--border-color);
}

.chatbot__input {
  flex: 1;
  background: var(--bg-elevated-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 8px 14px;
  font-size: var(--fs-sm);
  color: var(--text-primary);
}

.chatbot__input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.chatbot__send {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #fff;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform var(--duration-fast);
}

.chatbot__send:hover {
  transform: scale(1.08);
}

/* ---------------------------------------------
   Case Study Modal
--------------------------------------------- */
.case-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-base) var(--ease-out), visibility var(--duration-base);
}

.case-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.case-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

[data-theme='light'] .case-modal__backdrop {
  background: rgba(13, 15, 18, 0.5);
}

.case-modal__panel {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  overflow-y: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  transform: translateY(24px) scale(0.97);
  transition: transform var(--duration-base) var(--ease-out);
}

.case-modal.is-open .case-modal__panel {
  transform: translateY(0) scale(1);
}

.case-modal__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

.case-modal__close:hover {
  color: var(--text-primary);
  border-color: var(--border-color-strong);
  transform: rotate(90deg);
}

.case-modal__tags {
  display: flex;
  gap: 6px;
  margin-bottom: var(--space-md);
  padding-right: 40px;
}

.case-modal__title {
  font-size: var(--fs-xl);
  margin-bottom: 6px;
  padding-right: 40px;
}

.case-modal__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.case-modal__block {
  margin-bottom: var(--space-lg);
}

.case-modal__block h4 {
  font-size: var(--fs-sm);
  color: var(--accent-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  font-weight: 500;
  margin-bottom: 6px;
}

.case-modal__block p {
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
}

.case-modal__links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* ---------------------------------------------
   Pricing
--------------------------------------------- */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
  transition: transform var(--duration-base) var(--ease-out), border-color var(--duration-base);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-strong);
}

.pricing-card--featured {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-glow);
}

.pricing-card--featured:hover {
  transform: translateY(-10px);
}

.pricing-card__badge {
  position: absolute;
  top: -13px;
  left: var(--space-xl);
  background: var(--gradient-brand);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
}

.pricing-card__name {
  font-size: var(--fs-lg);
  margin-bottom: 6px;
}

.pricing-card__desc {
  font-size: var(--fs-sm);
  min-height: 42px;
  margin-bottom: var(--space-lg);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: var(--space-xl);
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.pricing-card__period {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--space-xl);
  flex: 1;
}

.pricing-card__features li {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
}

.pricing-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gradient-brand-soft);
  border: 1px solid var(--accent-primary);
}

.pricing-card__features li::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 9px;
  width: 6px;
  height: 3px;
  border-left: 1.5px solid var(--accent-secondary);
  border-bottom: 1.5px solid var(--accent-secondary);
  transform: rotate(-45deg);
}

.pricing__note {
  text-align: center;
  font-size: var(--fs-sm);
  margin-top: var(--space-2xl);
}

/* ---------------------------------------------
   Cursor glow (desktop only, added via JS)
--------------------------------------------- */
.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, rgba(99, 102, 241, 0) 70%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  will-change: transform;
}

[data-theme='light'] .cursor-glow {
  background: radial-gradient(circle, rgba(79, 70, 229, 0.08) 0%, rgba(79, 70, 229, 0) 70%);
}