/* ==========================================================================
   doctorcloud.ai — Styles
   Aesthetic: Surgical minimalism — dark navy + electric teal accent
   Fonts: Syne (headings) + Instrument Sans (body)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Palette — light grey editorial */
  --color-bg:         #f5f5f7;
  --color-surface:    #ededf0;
  --color-surface-2:  #e4e4e8;
  --color-border:     rgba(0, 0, 0, 0.07);
  --color-border-mid: rgba(0, 0, 0, 0.13);

  --color-text:       #111118;
  --color-text-muted: #52525e;
  --color-text-faint: #a0a0b0;

  --color-accent:     #00c4a8;    /* teal — deepened for light-bg contrast */
  --color-accent-dim: #009e87;
  --color-accent-bg:  rgba(0, 196, 168, 0.08);

  /* Typography */
  --font-heading: 'Syne', sans-serif;
  --font-body:    'Instrument Sans', sans-serif;

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(1.25rem, 5vw, 2.5rem);

  /* Transitions */
  --ease-out:  cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in:   cubic-bezier(0.55, 0, 1, 0.45);
  --duration:  0.35s;
  --duration-slow: 0.65s;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Header height */
  --header-h: 68px;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
  color: inherit;
}

input, textarea {
  font: inherit;
  color: inherit;
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Scroll padding for anchor links */
[id] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  max-width: 26ch;
}

.section-header {
  margin-bottom: var(--space-16);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease-out);
  white-space: nowrap;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-dim);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0, 196, 168, 0.25);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-mid);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background-color: rgba(245, 245, 247, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out);
}

.site-header.scrolled {
  background-color: rgba(245, 245, 247, 0.97);
  border-color: var(--color-border-mid);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  flex-shrink: 0;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 6px var(--color-accent); }
  50%       { box-shadow: 0 0 14px var(--color-accent), 0 0 28px rgba(0, 196, 168, 0.3); }
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.logo-accent {
  color: var(--color-accent);
}

/* Desktop nav */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-left: auto;
}

.nav-desktop a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--duration) var(--ease-out);
  position: relative;
}

.nav-desktop a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--duration) var(--ease-out);
}

.nav-desktop a:not(.nav-cta):hover {
  color: var(--color-text);
}

.nav-desktop a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--color-accent);
  color: #fff !important;
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  transition: background-color var(--duration) var(--ease-out),
              transform var(--duration) var(--ease-out) !important;
}

.nav-cta:hover {
  background-color: var(--color-accent-dim);
  transform: translateY(-1px);
}

/* Language switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: var(--space-4);
  padding-left: var(--space-4);
  border-left: 1px solid var(--color-border);
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  padding: 0.3rem 0.45rem;
  border-radius: var(--radius-sm);
  transition: color var(--duration) var(--ease-out),
              background-color var(--duration) var(--ease-out);
}

.lang-btn:hover {
  color: var(--color-text);
  background-color: rgba(0, 0, 0, 0.05);
}

.lang-btn.active,
.lang-btn[aria-pressed="true"] {
  color: var(--color-accent);
  background-color: var(--color-accent-bg);
}

.lang-btn .flag {
  font-size: 0.9rem;
  line-height: 1;
}

.lang-code {
  font-family: var(--font-heading);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  margin-left: auto;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: background-color var(--duration) var(--ease-out);
}

.hamburger:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--duration) var(--ease-out),
              opacity var(--duration) var(--ease-out);
  transform-origin: center;
}

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

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

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

/* Mobile nav */
.nav-mobile {
  display: none;
  flex-direction: column;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--container-pad);
  gap: var(--space-1);
  transform-origin: top;
  animation: none;
}

.nav-mobile.open {
  display: flex;
}

.mobile-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--duration) var(--ease-out);
}

.mobile-link:last-of-type {
  border-bottom: none;
}

.mobile-link:hover {
  color: var(--color-text);
}

.mobile-langs {
  display: flex;
  gap: var(--space-2);
  padding-top: var(--space-4);
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

/* Animated grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 196, 168, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 196, 168, 0.10) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  animation: grid-drift 20s ease-in-out infinite alternate;
}

@keyframes grid-drift {
  0%   { transform: translate(0, 0); }
  100% { transform: translate(8px, -8px); }
}

/* Radial glow */
.hero::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(0, 196, 168, 0.09) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: var(--space-24);
}

.hero-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  opacity: 0;
  animation: fade-up 0.6s var(--ease-out) 0.1s forwards;
}

.hero-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: 0.1em;
}

.hero-line {
  display: block;
  opacity: 0;
  animation: fade-up 0.7s var(--ease-out) forwards;
}

.hero-line:nth-child(1) { animation-delay: 0.2s; }
.hero-line:nth-child(2) { animation-delay: 0.35s; }

.hero-line--accent {
  color: var(--color-accent);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--color-text-muted);
  max-width: 48ch;
  line-height: 1.7;
  margin-bottom: var(--space-10);
  opacity: 0;
  animation: fade-up 0.7s var(--ease-out) 0.5s forwards;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
  opacity: 0;
  animation: fade-up 0.7s var(--ease-out) 0.6s forwards;
}

.hero-langs {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-up 0.7s var(--ease-out) 0.75s forwards;
}

.lang-pill {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  transition: color var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out);
}

.lang-pill:hover {
  color: var(--color-text-muted);
  border-color: var(--color-border-mid);
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fade-in 1s var(--ease-out) 1.2s forwards;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  margin-inline: auto;
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.15); }
}

/* --------------------------------------------------------------------------
   Services
   -------------------------------------------------------------------------- */
.services {
  padding-block: var(--space-32);
  background-color: var(--color-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-card {
  background-color: var(--color-bg);
  padding: var(--space-10) var(--space-8);
  position: relative;
  transition: background-color var(--duration) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent-bg);
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
  pointer-events: none;
}

.service-card:hover {
  background-color: var(--color-surface-2);
}

.service-card:hover::after {
  opacity: 1;
}

.service-card-number {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  position: absolute;
  top: var(--space-6);
  right: var(--space-8);
}

.service-card-icon {
  color: var(--color-accent);
  transition: transform var(--duration) var(--ease-out);
}

.service-card:hover .service-card-icon {
  transform: scale(1.1);
}

.service-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

.service-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}

.service-card-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--space-2);
}

.service-card-tags li {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  transition: color var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out);
}

.service-card:hover .service-card-tags li {
  color: var(--color-accent);
  border-color: rgba(0, 196, 168, 0.2);
}

/* CTA card */
.service-card--cta {
  align-items: flex-start;
  justify-content: flex-end;
  background: linear-gradient(135deg, var(--color-surface) 0%, #dde8e5 100%);
  gap: var(--space-6);
  min-height: 200px;
}

.service-cta-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  max-width: 14ch;
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */
.about {
  padding-block: var(--space-32);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-20);
  align-items: start;
}

.about-content {
  max-width: 52ch;
}

.about-content .section-label {
  display: block;
}

.about-body {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-5);
}

.about-content .btn {
  margin-top: var(--space-4);
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  padding-top: var(--space-12);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Contact
   -------------------------------------------------------------------------- */
.contact {
  padding-block: var(--space-32);
  background-color: var(--color-bg);
}

.contact-inner {
  max-width: 680px;
}

.contact-sub {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 44ch;
}

.contact-form {
  margin-top: var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-mid);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
  resize: vertical;
}

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

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 196, 168, 0.15);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: #ff5f6d;
}

.form-lang-group label:first-child {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.radio-group {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-top: var(--space-2);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--duration) var(--ease-out);
}

.radio-label:hover {
  color: var(--color-text);
}

.radio-label input[type="radio"] {
  accent-color: var(--color-accent);
  width: 14px;
  height: 14px;
}

.form-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
  min-height: 1.2em;
}

.form-note.success {
  color: var(--color-accent);
}

.form-note.error {
  color: #ff5f6d;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding-block: var(--space-12);
  flex-wrap: wrap;
}

.footer-tagline {
  font-size: 0.8125rem;
  color: var(--color-text-faint);
  margin-top: var(--space-2);
}

.footer-nav {
  display: flex;
  gap: var(--space-8);
}

.footer-nav a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: color var(--duration) var(--ease-out);
}

.footer-nav a:hover {
  color: var(--color-text);
}

.footer-langs {
  display: flex;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-4);
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy,
.footer-made,
.footer-legal {
  font-size: 0.78rem;
  color: var(--color-text-faint);
}

.footer-made {
  color: var(--color-text-muted);
}

.footer-boost-row {
  display: flex;
  justify-content: center;
  padding-top: var(--space-3);
  padding-bottom: var(--space-2);
}

.footer-boost {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.footer-boost a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity var(--duration) var(--ease-out);
}

.footer-boost a:hover {
  opacity: 0.8;
}

/* --------------------------------------------------------------------------
   Reveal animations (scroll-triggered)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Staggered reveal for service/product cards */
.services-grid .reveal:nth-child(1),
.products-grid .reveal:nth-child(1) { transition-delay: 0s; }
.services-grid .reveal:nth-child(2),
.products-grid .reveal:nth-child(2) { transition-delay: 0.08s; }
.services-grid .reveal:nth-child(3),
.products-grid .reveal:nth-child(3) { transition-delay: 0.16s; }
.services-grid .reveal:nth-child(4),
.products-grid .reveal:nth-child(4) { transition-delay: 0.24s; }
.services-grid .reveal:nth-child(5) { transition-delay: 0.32s; }
.services-grid .reveal:nth-child(6) { transition-delay: 0.40s; }

/* --------------------------------------------------------------------------
   Products
   -------------------------------------------------------------------------- */
.products {
  padding-block: var(--space-32);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.product-card {
  background-color: var(--color-surface);
  padding: var(--space-10) var(--space-8);
  position: relative;
  transition: background-color var(--duration) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.product-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent-bg);
  opacity: 0;
  transition: opacity var(--duration) var(--ease-out);
  pointer-events: none;
}

.product-card:hover {
  background-color: var(--color-surface-2);
}

.product-card:hover::after {
  opacity: 1;
}

.product-card-number {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  position: absolute;
  top: var(--space-6);
  right: var(--space-8);
}

.product-card-icon {
  color: var(--color-accent);
  transition: transform var(--duration) var(--ease-out);
}

.product-card:hover .product-card-icon {
  transform: scale(1.1);
}

.product-card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
}

.product-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}

.product-card-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--space-2);
}

.product-card-tags li {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  transition: color var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out);
}

.product-card:hover .product-card-tags li {
  color: var(--color-accent);
  border-color: rgba(0, 196, 168, 0.2);
}

/* --------------------------------------------------------------------------
   Keyframes
   -------------------------------------------------------------------------- */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Responsive — Tablet (≤768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .lang-switcher {
    display: none;
  }

  .hamburger {
    display: flex;
    margin-left: auto;
  }

  .nav-mobile.open {
    display: flex;
  }

  .hero-heading {
    font-size: clamp(2.2rem, 10vw, 3.5rem);
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }

  .about-stats {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-8);
    padding-top: 0;
  }

  .stat-item {
    min-width: 100px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .footer-nav {
    gap: var(--space-5);
  }
}

/* --------------------------------------------------------------------------
   Responsive — Mobile (≤480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  :root {
    --space-32: 5rem;
    --space-24: 4rem;
    --space-20: 3.5rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .radio-group {
    gap: var(--space-4);
  }

  .footer-inner {
    padding-block: var(--space-8);
  }

  .footer-bottom .container {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .hero-label,
  .hero-line,
  .hero-sub,
  .hero-actions,
  .hero-langs,
  .hero-scroll-indicator {
    opacity: 1;
    transform: none;
    animation: none;
  }

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