/* ============================================================
   oikoskaidomi.gr — Main Stylesheet
   Mobile-first, SEO-friendly, accessible
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --color-primary:       #1e3a5f;
  --color-primary-dark:  #122540;
  --color-primary-light: #2d5282;
  --color-accent:        #e8731a;
  --color-accent-dark:   #c45f10;
  --color-accent-light:  #f59144;
  --color-success:       #27ae60;
  --color-white:         #ffffff;
  --color-bg:            #f7f8fc;
  --color-bg-dark:       #1e3a5f;
  --color-text:          #1a202c;
  --color-text-muted:    #6b7280;
  --color-border:        #e2e8f0;

  --font-main:   'Inter', system-ui, -apple-system, sans-serif;

  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-full: 9999px;

  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:   0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:   0 10px 40px rgba(0,0,0,.14);

  --header-h:    70px;
  --container-w: 1200px;
  --section-gap: 5rem;

  --transition: 0.25s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul[role="list"], ol[role="list"] { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, select, textarea, button { font-family: inherit; }
address { font-style: normal; }

/* ---- Accessibility ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-accent);
  color: var(--color-white);
  padding: .5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }
p { max-width: 68ch; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: .95rem;
  transition: background var(--transition), color var(--transition),
              transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-accent-dark); }

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.15); border-color: var(--color-white); }

.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn-outline-white:hover { background: var(--color-white); color: var(--color-primary); }

.btn-lg { padding: .85rem 2rem; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

/* ---- HEADER / NAV ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-lg); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1rem;
}

/* LOGO */
.logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  font-size: 1.8rem;
  color: var(--color-accent);
  line-height: 1;
}
.logo-text {
  display: flex;
  align-items: baseline;
  gap: .1rem;
  font-size: 1.2rem;
}
.logo-text strong { color: var(--color-primary); letter-spacing: -.03em; }
.logo-text span   { color: var(--color-text-muted); font-weight: 400; font-size: .95rem; }
.logo--white .logo-text strong,
.logo--white .logo-text span   { color: var(--color-white); }
.logo--white .logo-icon        { color: var(--color-accent-light); }

/* NAV LIST */
.nav-list {
  display: none;
  list-style: none;
  gap: .25rem;
  align-items: center;
}
.nav-link {
  display: block;
  padding: .55rem .9rem;
  border-radius: var(--radius-sm);
  font-size: .925rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--color-primary); background: var(--color-bg); }
.nav-link.active { color: var(--color-primary); font-weight: 700; }

.nav-cta {
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: .55rem 1.2rem;
  border-radius: var(--radius-full);
}
.nav-cta:hover   { background: var(--color-accent-dark) !important; }
.nav-cta.active  { background: var(--color-accent-dark); }

/* HAMBURGER */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 2px solid var(--color-border);
  transition: border-color var(--transition);
}
.nav-toggle:hover { border-color: var(--color-primary); }
.burger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}
.nav-toggle[aria-expanded="true"] .burger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .burger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] .burger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* MOBILE NAV OPEN */
.main-nav.open .nav-list {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  padding: 1rem 1.25rem 2rem;
  gap: .25rem;
  animation: slideDown .25s ease;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}
.main-nav.open .nav-link  { padding: .9rem 1rem; font-size: 1rem; border-bottom: 1px solid var(--color-border); }
.main-nav.open .nav-cta   { border-bottom: none; margin-top: .5rem; text-align: center; }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  background: var(--color-primary-dark);
  color: var(--color-white);
  overflow: hidden;
}
.hero-overlay {
  display: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 1.25rem;
  max-width: var(--container-w);
}
.hero-badge {
  display: inline-block;
  background: rgba(232,115,26,.25);
  border: 1px solid rgba(232,115,26,.5);
  color: var(--color-accent-light);
  padding: .35rem 1rem;
  border-radius: var(--radius-full);
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: .03em;
}
.hero h1 {
  color: var(--color-white);
  margin-bottom: 1.25rem;
  max-width: 16ch;
}
.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255,255,255,.85);
  margin-bottom: 2rem;
  max-width: 52ch;
  font-weight: 300;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  border-top: 1px solid rgba(255,255,255,.2);
  padding-top: 2rem;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong { font-size: 2rem; font-weight: 800; color: var(--color-accent-light); line-height: 1; }
.hero-stat span   { font-size: .875rem; color: rgba(255,255,255,.75); margin-top: .25rem; }
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
}
.hero-scroll-hint span {
  display: block; width: 2px; height: 40px;
  background: rgba(255,255,255,.3);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%,100% { opacity: .3; transform: scaleY(1); }
  50%      { opacity: .8; transform: scaleY(1.3); }
}

/* ---- PAGE HERO (inner pages) ---- */
.page-hero {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: 3rem 0;
}
.page-hero h1 { color: var(--color-white); margin-top: .75rem; }
.page-hero-subtitle {
  color: rgba(255,255,255,.8);
  margin-top: 1rem;
  font-size: 1.1rem;
  max-width: 55ch;
}

/* Breadcrumb */
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  gap: .35rem;
  font-size: .875rem;
  align-items: center;
}
.breadcrumb li { display: flex; align-items: center; gap: .35rem; }
.breadcrumb li:not(:last-child)::after { content: '›'; opacity: .6; }
.breadcrumb a  { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: var(--color-white); }
.breadcrumb [aria-current="page"] { color: var(--color-accent-light); font-weight: 600; }

/* ---- SECTIONS ---- */
.section { padding: var(--section-gap) 0; }
.section--light { background: var(--color-bg); }

.section-header { text-align: center; margin-bottom: 3rem; }
.section-header p { margin: .75rem auto 0; color: var(--color-text-muted); }

.section-header--dark h2 { color: var(--color-white); }
.section-header--dark p  { color: rgba(255,255,255,.75); }

.section-badge {
  display: inline-block;
  background: rgba(232,115,26,.12);
  color: var(--color-accent);
  padding: .3rem .9rem;
  border-radius: var(--radius-full);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: .75rem;
}
.section-badge--light {
  background: rgba(255,255,255,.15);
  color: var(--color-accent-light);
}
.section-cta { text-align: center; margin-top: 2.5rem; }

/* ---- FEATURES GRID ---- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.features-grid--3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.feature-icon { font-size: 2.25rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: .5rem; font-size: 1.1rem; }
.feature-card p  { color: var(--color-text-muted); font-size: .9rem; }

/* ---- SERVICES GRID ---- */
.services-overview { background: var(--color-primary); }
.services-overview .section-header--dark { color: var(--color-white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.service-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), border-color var(--transition), color var(--transition);
}
.service-card:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-4px);
  color: var(--color-white);
}
.service-card-icon { font-size: 2rem; margin-bottom: 1rem; }
.service-card h3   { font-size: 1.1rem; margin-bottom: .5rem; color: inherit; }
.service-card p    { font-size: .875rem; color: var(--color-text-muted); flex: 1; transition: color var(--transition); }
.service-card:hover p { color: rgba(255,255,255,.85); }
.service-card-link { margin-top: 1.25rem; color: var(--color-accent); font-weight: 600; font-size: .875rem; transition: color var(--transition); }
.service-card:hover .service-card-link { color: var(--color-accent-light); }
@media (hover: none) {
  .service-card:hover {
    background: var(--color-white);
    border-color: var(--color-border);
    transform: none;
    color: var(--color-text);
  }
  .service-card:hover p { color: var(--color-text-muted); }
  .service-card:hover .service-card-link { color: var(--color-accent); }
}

/* ---- STATS BAND ---- */
.stats-band {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 2.5rem 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 2rem;
  text-align: center;
}
.stat-number { display: block; font-size: 2.5rem; font-weight: 800; line-height: 1; }
.stat-label  { display: block; font-size: .875rem; opacity: .85; margin-top: .35rem; }

/* ---- PORTFOLIO PREVIEW ---- */
.portfolio-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.portfolio-card { background: var(--color-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: box-shadow var(--transition), transform var(--transition); }
.portfolio-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.portfolio-card-img {
  height: 200px;
  position: relative;
  display: flex; align-items: flex-end; padding: 1rem;
}
.portfolio-card-img--1 { background: var(--color-primary); }
.portfolio-card-img--2 { background: var(--color-accent); }
.portfolio-card-img--3 { background: var(--color-accent-dark); }
.portfolio-badge {
  background: rgba(0,0,0,.55);
  color: var(--color-white);
  padding: .3rem .75rem;
  border-radius: var(--radius-full);
  font-size: .75rem;
  font-weight: 600;
}
.portfolio-card-body { padding: 1.25rem; }
.portfolio-card-body h3 { font-size: 1.05rem; margin-bottom: .4rem; }
.portfolio-card-body p { font-size: .875rem; color: var(--color-text-muted); }
.portfolio-tag { display: inline-block; margin-top: .75rem; font-size: .775rem; background: var(--color-bg); padding: .25rem .7rem; border-radius: var(--radius-full); color: var(--color-text-muted); }

/* ---- TESTIMONIALS ---- */
.testimonials { background: var(--color-primary); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.5rem;
}
.testimonial-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  color: var(--color-white);
}
.testimonial-card--featured {
  background: rgba(232,115,26,.15);
  border-color: rgba(232,115,26,.35);
}
.testimonial-stars { color: var(--color-accent-light); font-size: 1.1rem; margin-bottom: .75rem; letter-spacing: .15em; }
.testimonial-card p { font-size: .95rem; line-height: 1.7; color: rgba(255,255,255,.85); font-style: italic; }
.testimonial-card footer { margin-top: 1.25rem; display: flex; flex-direction: column; gap: .2rem; }
.testimonial-card cite  { font-style: normal; font-weight: 700; color: var(--color-white); }
.testimonial-card footer span { font-size: .8rem; color: rgba(255,255,255,.6); }

/* ---- CTA BANNER ---- */
.cta-banner {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 4rem 0;
  text-align: center;
}
.cta-content h2 { color: var(--color-white); margin-bottom: .75rem; }
.cta-content p  { color: rgba(255,255,255,.9); margin: 0 auto 2rem; max-width: 55ch; font-size: 1.1rem; }
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* ---- SERVICE DETAIL (Services page) ---- */
.service-detail {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem 2rem;
  padding: 2.5rem 2rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}
.service-detail--reverse { border-left-color: var(--color-primary); }
.service-detail-icon { font-size: 3rem; padding-top: .25rem; }
@media (max-width: 639px) {
  .service-detail { grid-template-columns: 1fr; }
  .service-detail-icon { display: none; }
  .service-detail .btn { display: block; text-align: center; }
}
.service-detail h2 { margin-bottom: .75rem; font-size: 1.5rem; }
.service-detail p  { color: var(--color-text-muted); margin-bottom: 1.25rem; }
.service-list { margin: 0 0 1.5rem 0; list-style: none; display: flex; flex-direction: column; gap: .45rem; }
.service-list li { font-size: .9rem; color: var(--color-text-muted); padding-left: 1.5rem; position: relative; }
.service-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-success); font-weight: 700; }

/* ---- AREAS ---- */
.map-placeholder {
  height: 300px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  text-align: center;
}
.map-placeholder--contact { height: 350px; }
.map-placeholder-inner { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.map-icon { font-size: 3rem; }
.map-placeholder p { color: rgba(255,255,255,.85); font-size: 1.1rem; }

.areas-regions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.area-region-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.area-region-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
  padding-bottom: .75rem;
  border-bottom: 2px solid var(--color-accent);
  display: flex; align-items: center; gap: .5rem;
}
.area-list { list-style: none; display: flex; flex-direction: column; gap: .4rem; }
.area-list li { font-size: .875rem; color: var(--color-text-muted); padding-left: 1rem; position: relative; }
.area-list li::before { content: '•'; position: absolute; left: 0; color: var(--color-accent); }
.area-list a { color: var(--color-accent); font-weight: 600; }
.area-list a:hover { text-decoration: underline; }

/* ---- ABOUT ---- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
.about-intro-text .section-badge { margin-bottom: .75rem; }
.about-intro-text h2 { margin-bottom: 1.25rem; }
.about-intro-text p  { color: var(--color-text-muted); margin-bottom: 1rem; }

.about-intro-visual {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.about-visual-card {
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: .35rem;
}
.about-visual-card strong { font-size: 2.2rem; font-weight: 800; line-height: 1; }
.about-visual-card span   { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 600; }
.about-visual-card--1 { background: var(--color-primary); color: var(--color-white); }
.about-visual-card--2 { background: var(--color-accent);  color: var(--color-white); }
.about-visual-card--3 { background: var(--color-bg); color: var(--color-primary); border: 2px solid var(--color-border); }
.about-visual-card--4 { background: var(--color-success); color: var(--color-white); }

.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.value-card { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius-md); padding: 1.75rem; color: var(--color-white); }
.value-number { font-size: 2.5rem; font-weight: 800; color: rgba(232,115,26,.5); line-height: 1; margin-bottom: .75rem; }
.value-card h3 { margin-bottom: .5rem; }
.value-card p  { font-size: .875rem; color: rgba(255,255,255,.75); }

.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.team-card { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1.75rem; text-align: center; }
.team-avatar {
  width: 70px; height: 70px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 800; color: var(--color-white);
  margin: 0 auto 1rem;
}
.team-avatar--1 { background: var(--color-primary); }
.team-avatar--2 { background: var(--color-accent); }
.team-avatar--3 { background: var(--color-primary-dark); }
.team-avatar--4 { background: var(--color-success); }
.team-card h3 { font-size: 1.05rem; margin-bottom: .25rem; }
.team-role { font-size: .8rem; color: var(--color-accent); font-weight: 600; margin-bottom: .75rem; display: block; }
.team-card p { font-size: .85rem; color: var(--color-text-muted); }

.certs-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; }
.cert-badge {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-md); padding: 1.5rem 2rem;
  color: var(--color-white); text-align: center; font-size: .875rem; font-weight: 600;
}
.cert-icon { font-size: 2rem; }

/* ---- PORTFOLIO PAGE ---- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: .5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: .875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-white);
  border: 2px solid var(--color-border);
  transition: all var(--transition);
}
.filter-btn:hover  { border-color: var(--color-primary); color: var(--color-primary); }
.filter-btn.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}
.portfolio-item { background: var(--color-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: box-shadow var(--transition), transform var(--transition); }
.portfolio-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.portfolio-item.hidden { display: none; }
.pi-img {
  height: 200px; position: relative;
  display: flex; align-items: flex-end; padding: 1rem;
}
.pi-img--1 { background: var(--color-primary); }
.pi-img--2 { background: var(--color-accent); }
.pi-img--3 { background: var(--color-success); }
.pi-img--4 { background: var(--color-primary-light); }
.pi-img--5 { background: var(--color-accent-dark); }
.pi-img--6 { background: var(--color-success); }
.pi-img--7 { background: var(--color-primary-dark); }
.pi-img--8 { background: var(--color-accent); }
.pi-img--9 { background: var(--color-primary-light); }
.pi-label { background: rgba(0,0,0,.5); color: #fff; padding: .3rem .75rem; border-radius: var(--radius-full); font-size: .75rem; font-weight: 600; }
.pi-body { padding: 1.25rem; }
.pi-body h3 { font-size: 1rem; margin-bottom: .25rem; }
.pi-location { font-size: .8rem; color: var(--color-accent); font-weight: 600; margin-bottom: .5rem; }
.pi-body p  { font-size: .85rem; color: var(--color-text-muted); }
.pi-meta { display: flex; gap: 1rem; margin-top: .75rem; font-size: .775rem; color: var(--color-text-muted); }

/* Process steps */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  counter-reset: steps;
}
.process-step { text-align: center; padding: 1.5rem 1rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.process-step-num {
  width: 50px; height: 50px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; font-weight: 800;
  margin: 0 auto 1rem;
}
.process-step h3 { font-size: .95rem; color: var(--color-text); margin-bottom: .5rem; }
.process-step p  { font-size: .85rem; color: var(--color-text-muted); }

/* ---- SERVICES TABS ---- */
.services-tabs-nav {
  background: var(--color-white);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 64px;
  z-index: 90;
}
.tab-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .4rem;
  padding: .6rem 0;
}
@media (min-width: 640px) {
  .tab-nav {
    display: flex;
    gap: .25rem;
    padding: .5rem 0;
  }
}
.tab-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .65rem .75rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  transition: all var(--transition);
}
@media (min-width: 640px) {
  .tab-btn {
    border-radius: var(--radius-full);
    font-size: .95rem;
    padding: .6rem 1.4rem;
    background: transparent;
    border-color: transparent;
  }
}
.tab-btn:hover { color: var(--color-primary); background: rgba(var(--color-primary-rgb, 26,86,219),.06); }
.tab-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.tab-panel { display: block; }
.tab-panel.hidden { display: none; }

.services-room-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 640px) {
  .services-room-grid { grid-template-columns: repeat(2, 1fr); }
}
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.service-card-icon { font-size: 2.5rem; line-height: 1; }
.service-card-body { display: flex; flex-direction: column; gap: .75rem; }
.service-card-body h2 { font-size: 1.2rem; margin: 0; }
.service-card-body p  { color: var(--color-text-muted); font-size: .95rem; margin: 0; }

/* ---- CONTACT PAGE ---- */
.success-banner {
  display: flex; align-items: flex-start; gap: 1rem;
  background: #d4edda; border: 1px solid #c3e6cb;
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-size: .95rem; color: #155724;
}
.success-banner span { font-size: 1.5rem; }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.contact-form-wrap h2,
.contact-info-wrap h2 { margin-bottom: .75rem; }
.contact-form-wrap p  { color: var(--color-text-muted); margin-bottom: 2rem; }

.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-size: .875rem; font-weight: 600; color: var(--color-text); }
.form-group label span { color: var(--color-accent); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--color-primary); outline: none; }
.form-group input.error,
.form-group select.error,
.form-group textarea.error { border-color: #e53e3e; }
.form-error { font-size: .8rem; color: #e53e3e; min-height: 1em; }
.form-group textarea { resize: vertical; min-height: 120px; }

.form-gdpr { display: flex; flex-direction: column; gap: .4rem; }
.checkbox-label { display: flex; align-items: flex-start; gap: .65rem; font-size: .85rem; color: var(--color-text-muted); cursor: pointer; }
.checkbox-label input { margin-top: .2rem; flex-shrink: 0; width: 16px; height: 16px; accent-color: var(--color-accent); }
.checkbox-label a { color: var(--color-accent); text-decoration: underline; }

.contact-details { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 1rem; }
.contact-detail-item { display: flex; align-items: flex-start; gap: .9rem; }
.contact-detail-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: .1rem; }
.contact-detail-item > div { display: flex; flex-direction: column; gap: .2rem; }
.contact-detail-item strong { font-size: .875rem; text-transform: uppercase; letter-spacing: .05em; color: var(--color-text-muted); }
.contact-detail-item a { font-size: 1.05rem; font-weight: 600; color: var(--color-primary); }
.contact-detail-item a:hover { color: var(--color-accent); }
.contact-note { font-size: .8rem; color: var(--color-text-muted); }

.contact-info-hours { margin-top: 2rem; }
.contact-info-hours h3 { font-size: 1rem; margin-bottom: .75rem; }
.hours-table { width: 100%; font-size: .875rem; border-collapse: collapse; }
.hours-table td { padding: .45rem .25rem; border-bottom: 1px solid var(--color-border); color: var(--color-text-muted); }
.hours-table td:last-child { text-align: right; font-weight: 600; color: var(--color-text); }

.contact-info-promise { margin-top: 2rem; }
.contact-info-promise h3 { font-size: 1rem; margin-bottom: .75rem; }
.promise-list { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.promise-list li { font-size: .9rem; color: var(--color-text-muted); padding-left: .25rem; }

/* ---- FAB CALL BUTTON ---- */
.fab-call {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 80;
  width: 52px; height: 52px;
  background: var(--color-success);
  color: var(--color-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(39,174,96,.4);
  transition: transform var(--transition), box-shadow var(--transition);
}
.fab-call:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(39,174,96,.5); }
.fab-call svg { width: 22px; height: 22px; }

/* ---- FOOTER ---- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,.8);
  padding: 4rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-tagline { font-size: .875rem; color: rgba(255,255,255,.6); margin-top: .75rem; max-width: 30ch; }
.footer-social { display: flex; gap: .75rem; margin-top: 1.25rem; }
.footer-social a {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  transition: background var(--transition);
}
.footer-social a:hover { background: var(--color-accent); }
.footer-social svg { width: 16px; height: 16px; }

.footer-heading { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: rgba(255,255,255,.5); margin-bottom: 1rem; font-weight: 600; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.footer-links a { font-size: .9rem; color: rgba(255,255,255,.7); transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent-light); }

.footer-contact .contact-item { display: flex; align-items: flex-start; gap: .6rem; margin-bottom: .75rem; }
.footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; opacity: .6; }
.footer-contact span, .footer-contact a { font-size: .875rem; color: rgba(255,255,255,.7); }
.footer-contact a:hover { color: var(--color-accent-light); }
.footer-link { color: var(--color-accent-light) !important; }
.footer-link:hover { text-decoration: underline; }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  padding: 1.5rem 0;
  font-size: .8rem;
  color: rgba(255,255,255,.4);
  text-align: center;
}

/* ============================================================
   RESPONSIVE — TABLET (≥ 640px)
   ============================================================ */
@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; }
  .about-intro { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* ============================================================
   RESPONSIVE — DESKTOP (≥ 900px)
   ============================================================ */
@media (min-width: 900px) {
  .nav-list   { display: flex; }
  .nav-toggle { display: none; }

  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }

  .service-detail { grid-template-columns: 80px 1fr; }

  .contact-layout { grid-template-columns: 1.4fr 1fr; }

  .hero-content { padding-top: 6rem; padding-bottom: 6rem; }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .site-header, .fab-call, .hero-scroll-hint, .nav-toggle { display: none !important; }
  .hero { min-height: auto; padding: 2rem 0; background: none; color: #000; }
  .hero h1, .hero-subtitle { color: #000; }
  body { font-size: 12pt; }
  a[href]::after { content: " (" attr(href) ")"; font-size: .8em; color: #666; }
}