/* DentalPro Lab Solutions — one-page static site */

:root {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-text: #212C3F;
  --color-text-muted: #555D6A;
  --color-accent: #007BC0;
  --color-accent-light: #00BBF8;
  --color-accent-hover: #00619e;
  --color-accent-soft: rgba(0, 123, 192, 0.08);
  --color-accent-gradient: linear-gradient(90deg, #00BBF8 0%, #007BC0 100%);
    --color-border: #e2e4e8;
  --color-border-subtle: #D2D2D2;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-display: "DM Sans", system-ui, sans-serif;
  --letter-spacing-tagline: 0.12em;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --header-h: 4rem;
  --container: min(100% - 2rem, 70rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--color-text);
}

.logo-icon {
  height: 2.5rem;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.logo-name {
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.2;
  color: var(--color-text);
}

.logo-slogan {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: var(--letter-spacing-tagline);
  color: var(--color-text-muted);
  display: none;
}

@media (min-width: 900px) {
  .logo-slogan {
    display: block;
  }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
}

.nav-toggle span {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.nav {
  display: none;
  gap: var(--space-lg);
}

.nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
}

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

.nav.is-open {
  display: flex;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  flex-direction: column;
  padding: var(--space-md);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav {
    display: flex;
  }
}

/* Hero */
.hero {
  position: relative;
  padding: var(--space-2xl) 0;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-slogan {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: var(--letter-spacing-tagline);
  color: var(--color-accent);
  margin: 0 0 var(--space-sm);
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 var(--space-md);
  color: var(--color-text);
}

.hero-title em {
  font-style: italic;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 36em;
  margin: 0 0 var(--space-xl);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

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

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

.btn-secondary {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.btn-secondary:hover {
  background: rgba(0, 123, 192, 0.15);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(135deg, rgba(0, 187, 248, 0.06) 0%, transparent 50%),
                    radial-gradient(ellipse 80% 60% at 70% 30%, rgba(0, 123, 192, 0.08) 0%, transparent 50%),
                    url("../img/hero-bg.png");
  background-size: auto, auto, cover;
  background-position: 0 0, 0 0, center;
  background-repeat: repeat, repeat, no-repeat;
  pointer-events: none;
}

/* Sections */
.section {
  padding: var(--space-2xl) 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-text);
}

.section-lead {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xl);
  max-width: 40em;
  letter-spacing: var(--letter-spacing-tagline);
  text-transform: uppercase;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Services */
.services {
  background: var(--color-surface);
}

.services-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

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

@media (min-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

.service-icon {
  display: block;
  font-size: 1.5rem;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
  opacity: 0.95;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.service-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Digital Portfolio */
.portfolio {
  background: var(--color-bg);
}

.portfolio-grid {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-2xl);
}

@media (min-width: 900px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.portfolio-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.portfolio-card-visual {
  height: 10rem;
  background: var(--color-accent-gradient);
  opacity: 0.85;
}

.portfolio-card-visual--2 {
  background: linear-gradient(135deg, #007BC0 0%, #005a8c 100%);
}

.portfolio-card-visual--3 {
  background: linear-gradient(135deg, #00BBF8 0%, #007BC0 100%);
}

.portfolio-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.portfolio-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-sm);
  line-height: 1.3;
}

.portfolio-card-intro {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
  line-height: 1.5;
}

.portfolio-list {
  list-style: none;
  margin: 0 0 var(--space-lg);
  padding: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  flex: 1;
}

.portfolio-list > li {
  margin-bottom: var(--space-md);
}

.portfolio-list > li > strong {
  display: block;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.portfolio-list ul {
  list-style: none;
  margin: 0.25rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--color-accent-soft);
}

.portfolio-list ul li {
  margin-bottom: 0.25rem;
  position: relative;
}

.portfolio-list ul li::before {
  content: "·";
  position: absolute;
  left: -0.75rem;
  color: var(--color-accent);
  font-weight: bold;
}

.portfolio-cta {
  margin-top: auto;
  width: 100%;
  text-align: center;
}

.portfolio-specs {
  margin-bottom: var(--space-2xl);
}

.portfolio-specs-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.portfolio-specs-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .portfolio-specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.portfolio-spec-card {
  background: var(--color-surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.portfolio-spec-icon {
  display: block;
  font-size: 1.5rem;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.portfolio-spec-card h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}

.portfolio-spec-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.portfolio-banner {
  background: var(--color-accent-gradient);
  color: #fff;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
}

.portfolio-banner-text {
  margin: 0 0 var(--space-md);
  font-size: 1.125rem;
  font-weight: 500;
}

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

.portfolio-banner .btn:hover {
  background: var(--color-bg);
  color: var(--color-accent);
}

/* About */
.about {
  background: var(--color-bg);
}

.about-inner {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
}

.about-tagline {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 var(--space-md);
  letter-spacing: 0.02em;
}

.about-content p {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.about-advantage-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: var(--space-xl) 0 var(--space-md);
}

.about-advantages {
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--color-text-muted);
}

.about-advantages li {
  margin-bottom: var(--space-md);
  padding-left: 1.5rem;
  position: relative;
}

.about-advantages li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.35rem;
  height: 0.35rem;
  background: var(--color-accent-gradient);
  border-radius: 50%;
}

.about-advantages li strong {
  color: var(--color-text);
  font-weight: 600;
}

.about-visual {
  display: none;
}

@media (min-width: 768px) {
  .about-inner {
    grid-template-columns: 1fr 1fr;
  }

  .about-visual {
    display: block;
  }

  .about-shape {
    aspect-ratio: 1;
    max-width: 280px;
    margin-left: auto;
    background: var(--color-accent-gradient);
    opacity: 0.15;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  }
}

/* Contact */
.contact-block {
  background: var(--color-surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  max-width: 28rem;
}

.contact-block p {
  margin: 0 0 var(--space-sm);
}

.contact-block a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.contact-block a:hover {
  text-decoration: underline;
}

.contact-note {
  margin-top: var(--space-md) !important;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Footer */
.footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}