/* ==========================================================================
   LCM CHAUFFAGE - PRESERVED & PREMIUM CSS STYLESHEET
   Theme: High-End Dark Mode with Brand Accent Colors (Red, Blue, Green, Cyan)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --bg-primary: #0a0c10;
  --bg-secondary: #12161e;
  --bg-card: rgba(22, 28, 38, 0.65);
  --bg-card-hover: rgba(30, 38, 51, 0.85);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  /* Brand Service Colors (matching the logo) */
  --color-heating: #e30613;      /* Red */
  --color-plumbing: #009fe3;     /* Blue */
  --color-ventilation: #39b54a;  /* Green */
  --color-cooling: #00d2ff;      /* Ice Cyan */
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-focus: rgba(255, 255, 255, 0.25);
  
  /* Fonts & Transitions */
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.7);
  
  --glow-heating: 0 0 20px rgba(227, 6, 19, 0.35);
  --glow-plumbing: 0 0 20px rgba(0, 159, 227, 0.35);
  --glow-ventilation: 0 0 20px rgba(57, 181, 74, 0.35);
  --glow-cooling: 0 0 20px rgba(0, 210, 255, 0.35);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--bg-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border: 2px solid var(--bg-primary);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: #232d3d;
}

/* ==========================================================================
   UTILITY CLASSES & REUSABLE LAYOUTS
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #ffffff 30%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-title p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-heating), var(--color-plumbing), var(--color-ventilation), var(--color-cooling));
  margin: 20px auto 0;
  border-radius: 2px;
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.glass-card:hover {
  border-color: var(--border-color-focus);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-lg);
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 40%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 12, 16, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

header.scrolled {
  background: rgba(10, 12, 16, 0.92);
  box-shadow: var(--shadow-sm);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-container img {
  height: 45px;
  width: auto;
  border-radius: 6px;
  /* To make black background invisible and integrate beautifully */
  mix-blend-mode: screen; 
}

.logo-text {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text span:first-child {
  color: #fff;
}

.logo-text span:last-child {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

nav ul {
  display: flex;
  gap: 32px;
  align-items: center;
}

nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  position: relative;
  padding: 8px 0;
}

nav a:hover, nav a.active {
  color: #fff;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-heating), var(--color-plumbing));
  transition: var(--transition-normal);
}

nav a:hover::after, nav a.active::after {
  width: 100%;
}

/* Agenda nav link — visually distinct */
.nav-agenda-link {
  color: var(--color-plumbing) !important;
  border: 1px solid rgba(var(--color-plumbing-rgb, 43, 156, 235), 0.35);
  padding: 6px 14px !important;
  border-radius: 50px;
  font-size: 0.85rem !important;
  transition: all 0.2s;
}
.nav-agenda-link:hover {
  background: var(--color-plumbing) !important;
  color: #fff !important;
}
.nav-agenda-link::after { display: none !important; }

.btn-cta {
  background: linear-gradient(135deg, var(--color-heating), #b2050f);
  color: #fff;
  padding: 10px 20px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 15px rgba(227, 6, 19, 0.2);
  transition: var(--transition-normal);
  cursor: pointer;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(227, 6, 19, 0.4), var(--glow-heating);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1010;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--text-primary);
  border-radius: 3px;
  transition: var(--transition-normal);
}

/* ==========================================================================
   HERO SECTION (ACCUEIL)
   ========================================================================== */

#accueil {
  position: relative;
  height: 100vh;
  min-height: 750px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: #000;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background-image: url('assets/hero_bg_with_ac.png');
  background-size: cover;
  background-position: center;
  opacity: 0.70;
  filter: saturate(1.1);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: linear-gradient(to bottom, 
              rgba(10, 12, 16, 0.3) 0%, 
              rgba(10, 12, 16, 0.6) 60%, 
              var(--bg-primary) 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 900px;
  padding: 0 24px;
  margin-top: 60px;
}

.hero-logo-box {
  margin-bottom: 24px;
  display: flex;
  justify-content: center;
  animation: fadeInDown 1s ease-out;
}

.hero-logo {
  max-width: 600px;
  width: 90%;
  height: auto;
  filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.4));
}

.hero-text {
  animation: fadeInUp 1s ease-out 0.2s both;
  margin-bottom: 48px;
}

.hero-text h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}

.hero-text h1 span {
  display: block;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 8px;
}

.hero-text p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Service Nav Icons (4 aligned) */
.hero-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-service-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px 10px;
  border-radius: 16px;
  background: rgba(22, 28, 38, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.hero-service-card .icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.hero-service-card svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--text-secondary);
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: all var(--transition-normal);
}

.hero-service-card span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  transition: all var(--transition-normal);
}

/* Service Card Hover States (Unique color thematic glows & animations) */

/* Chauffage (Red) */
.hero-service-card.heating:hover {
  border-color: var(--color-heating);
  box-shadow: var(--glow-heating);
  background: rgba(227, 6, 19, 0.05);
  transform: translateY(-5px);
}
.hero-service-card.heating:hover .icon-wrapper {
  background: rgba(227, 6, 19, 0.15);
  border-color: var(--color-heating);
  box-shadow: 0 0 15px rgba(227, 6, 19, 0.4);
}
.hero-service-card.heating:hover svg {
  stroke: var(--color-heating);
  filter: drop-shadow(0 0 5px var(--color-heating));
  animation: flicker 1.5s infinite alternate;
}
.hero-service-card.heating:hover span {
  color: #fff;
}

/* Sanitaire (Blue) */
.hero-service-card.plumbing:hover {
  border-color: var(--color-plumbing);
  box-shadow: var(--glow-plumbing);
  background: rgba(0, 159, 227, 0.05);
  transform: translateY(-5px);
}
.hero-service-card.plumbing:hover .icon-wrapper {
  background: rgba(0, 159, 227, 0.15);
  border-color: var(--color-plumbing);
  box-shadow: 0 0 15px rgba(0, 159, 227, 0.4);
}
.hero-service-card.plumbing:hover svg {
  stroke: var(--color-plumbing);
  filter: drop-shadow(0 0 5px var(--color-plumbing));
  animation: pulse-glow 2s infinite ease-in-out;
}
.hero-service-card.plumbing:hover span {
  color: #fff;
}

/* Ventilation (Green) */
.hero-service-card.ventilation:hover {
  border-color: var(--color-ventilation);
  box-shadow: var(--glow-ventilation);
  background: rgba(57, 181, 74, 0.05);
  transform: translateY(-5px);
}
.hero-service-card.ventilation:hover .icon-wrapper {
  background: rgba(57, 181, 74, 0.15);
  border-color: var(--color-ventilation);
  box-shadow: 0 0 15px rgba(57, 181, 74, 0.4);
}
.hero-service-card.ventilation:hover svg {
  stroke: var(--color-ventilation);
  filter: drop-shadow(0 0 5px var(--color-ventilation));
  animation: spin-slow 8s linear infinite;
}
.hero-service-card.ventilation:hover span {
  color: #fff;
}

/* Climatisation (Cyan) */
.hero-service-card.cooling:hover {
  border-color: var(--color-cooling);
  box-shadow: var(--glow-cooling);
  background: rgba(0, 210, 255, 0.05);
  transform: translateY(-5px);
}
.hero-service-card.cooling:hover .icon-wrapper {
  background: rgba(0, 210, 255, 0.15);
  border-color: var(--color-cooling);
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.4);
}
.hero-service-card.cooling:hover svg {
  stroke: var(--color-cooling);
  filter: drop-shadow(0 0 5px var(--color-cooling));
  animation: rotate-slow 12s linear infinite;
}
.hero-service-card.cooling:hover span {
  color: #fff;
}

/* ==========================================================================
   SERVICES SECTION (NOS SERVICES)
   ========================================================================== */

#services {
  background-color: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.service-item-card {
  padding: 40px;
  position: relative;
  overflow: hidden;
  border-radius: 20px;
}

.service-item-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.service-item-card.heating::before { background-color: var(--color-heating); }
.service-item-card.plumbing::before { background-color: var(--color-plumbing); }
.service-item-card.ventilation::before { background-color: var(--color-ventilation); }
.service-item-card.cooling::before { background-color: var(--color-cooling); }

.service-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.service-header .service-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
}

.service-header svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Set specific color strokes */
.service-item-card.heating svg { stroke: var(--color-heating); }
.service-item-card.plumbing svg { stroke: var(--color-plumbing); }
.service-item-card.ventilation svg { stroke: var(--color-ventilation); }
.service-item-card.cooling svg { stroke: var(--color-cooling); }

.service-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.service-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 30px;
}

.service-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.feature-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.feature-tag svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--text-secondary);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-item-card.heating .feature-tag svg { stroke: var(--color-heating); }
.service-item-card.plumbing .feature-tag svg { stroke: var(--color-plumbing); }
.service-item-card.ventilation .feature-tag svg { stroke: var(--color-ventilation); }
.service-item-card.cooling .feature-tag svg { stroke: var(--color-cooling); }

.service-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 12px 24px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.service-item-card.heating .service-btn:hover {
  background: var(--color-heating);
  border-color: var(--color-heating);
  color: #fff;
  box-shadow: 0 4px 15px rgba(227, 6, 19, 0.3);
}

.service-item-card.plumbing .service-btn:hover {
  background: var(--color-plumbing);
  border-color: var(--color-plumbing);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 159, 227, 0.3);
}

.service-item-card.ventilation .service-btn:hover {
  background: var(--color-ventilation);
  border-color: var(--color-ventilation);
  color: #fff;
  box-shadow: 0 4px 15px rgba(57, 181, 74, 0.3);
}

.service-item-card.cooling .service-btn:hover {
  background: var(--color-cooling);
  border-color: var(--color-cooling);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3);
}

/* ==========================================================================
   APPOINTMENT / QUOTE SECTION (PRISE DE RENDEZ-VOUS)
   ========================================================================= */

#devis {
  background-color: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

/* Background Glowing Orbs for ambient aesthetics */
.glow-orb {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  filter: blur(150px);
  z-index: 1;
  opacity: 0.08;
  pointer-events: none;
}

.glow-orb-1 {
  top: -100px;
  left: -100px;
  background-color: var(--color-plumbing);
}

.glow-orb-2 {
  bottom: -150px;
  right: -100px;
  background-color: var(--color-heating);
}

#devis .container {
  position: relative;
  z-index: 2;
}

.devis-wrapper {
  max-width: 850px;
  margin: 0 auto;
}

#devis-form {
  padding: 40px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.form-control {
  background: rgba(22, 28, 38, 0.45);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 1rem;
  color: #fff;
  transition: all var(--transition-fast);
  width: 100%;
}

.form-control:focus {
  border-color: var(--text-secondary);
  background: rgba(30, 38, 51, 0.6);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.03);
}

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

/* Custom Checkboxes for Installation */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.custom-checkbox-wrapper {
  position: relative;
  cursor: pointer;
  user-select: none;
}

.custom-checkbox-wrapper input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkbox-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 8px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: rgba(22, 28, 38, 0.3);
  transition: all var(--transition-normal);
}

.checkbox-tile svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--text-secondary);
  stroke-width: 2;
  transition: all var(--transition-normal);
}

.checkbox-tile span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Checkbox selected states matching brand colors */
.custom-checkbox-wrapper.heating input:checked ~ .checkbox-tile {
  border-color: var(--color-heating);
  background: rgba(227, 6, 19, 0.08);
  box-shadow: 0 0 12px rgba(227, 6, 19, 0.2);
}
.custom-checkbox-wrapper.heating input:checked ~ .checkbox-tile svg {
  stroke: var(--color-heating);
  filter: drop-shadow(0 0 3px var(--color-heating));
}
.custom-checkbox-wrapper.heating input:checked ~ .checkbox-tile span {
  color: #fff;
}

.custom-checkbox-wrapper.plumbing input:checked ~ .checkbox-tile {
  border-color: var(--color-plumbing);
  background: rgba(0, 159, 227, 0.08);
  box-shadow: 0 0 12px rgba(0, 159, 227, 0.2);
}
.custom-checkbox-wrapper.plumbing input:checked ~ .checkbox-tile svg {
  stroke: var(--color-plumbing);
  filter: drop-shadow(0 0 3px var(--color-plumbing));
}
.custom-checkbox-wrapper.plumbing input:checked ~ .checkbox-tile span {
  color: #fff;
}

.custom-checkbox-wrapper.ventilation input:checked ~ .checkbox-tile {
  border-color: var(--color-ventilation);
  background: rgba(57, 181, 74, 0.08);
  box-shadow: 0 0 12px rgba(57, 181, 74, 0.2);
}
.custom-checkbox-wrapper.ventilation input:checked ~ .checkbox-tile svg {
  stroke: var(--color-ventilation);
  filter: drop-shadow(0 0 3px var(--color-ventilation));
}
.custom-checkbox-wrapper.ventilation input:checked ~ .checkbox-tile span {
  color: #fff;
}

.custom-checkbox-wrapper.cooling input:checked ~ .checkbox-tile {
  border-color: var(--color-cooling);
  background: rgba(0, 210, 255, 0.08);
  box-shadow: 0 0 12px rgba(0, 210, 255, 0.2);
}
.custom-checkbox-wrapper.cooling input:checked ~ .checkbox-tile svg {
  stroke: var(--color-cooling);
  filter: drop-shadow(0 0 3px var(--color-cooling));
}
.custom-checkbox-wrapper.cooling input:checked ~ .checkbox-tile span {
  color: #fff;
}

/* Day Preference - Days of the week */
.days-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.day-checkbox-wrapper {
  position: relative;
  cursor: pointer;
  text-align: center;
}

.day-checkbox-wrapper input {
  position: absolute;
  opacity: 0;
  height: 0;
  width: 0;
}

.day-tile {
  display: block;
  padding: 12px 6px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: rgba(22, 28, 38, 0.3);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.day-checkbox-wrapper input:checked ~ .day-tile {
  border-color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* Pre-filled Time Slot styles */
.timeslot-container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px dashed var(--border-color-focus);
  background: rgba(255, 255, 255, 0.02);
}

.timeslot-container svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--color-plumbing);
  stroke-width: 2;
}

.timeslot-text {
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  letter-spacing: 0.05em;
  background: rgba(0, 159, 227, 0.1);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(0, 159, 227, 0.2);
}

.timeslot-info {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Submit & Gcal buttons */
.form-submit-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 12px;
}

.btn-submit {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(135deg, #009fe3, #006da0);
  color: #fff;
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 159, 227, 0.25);
  transition: all var(--transition-normal);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 159, 227, 0.45), var(--glow-plumbing);
}

.btn-submit svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.25;
}

/* Confirmation / GCal Sync Box (Hidden initially) */
.gcal-sync-box {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: rgba(57, 181, 74, 0.08);
  border: 1px solid rgba(57, 181, 74, 0.25);
  border-radius: 12px;
  margin-top: 24px;
  animation: slideDownFade 0.4s ease-out;
}

.gcal-sync-box.active {
  display: flex;
}

.gcal-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gcal-header svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-ventilation);
  stroke-width: 2.25;
}

.gcal-header h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.gcal-sync-box p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.btn-gcal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: #fff;
  color: #1a1a1a;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid #ddd;
}

.btn-gcal:hover {
  background-color: #f3f4f6;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.btn-gcal img {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */

#contact {
  background-color: var(--bg-secondary);
}

.contact-wrapper {
  max-width: 650px;
  margin: 0 auto;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-card-box {
  padding: 40px 30px;
}

.contact-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 30px;
  letter-spacing: -0.01em;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.contact-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.contact-item:hover .contact-icon-wrapper {
  border-color: var(--color-plumbing);
  background: rgba(0, 159, 227, 0.08);
  box-shadow: var(--glow-plumbing);
}

.contact-icon-wrapper svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--text-secondary);
  stroke-width: 2;
  transition: all var(--transition-normal);
}

.contact-item:hover .contact-icon-wrapper svg {
  stroke: var(--color-plumbing);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-details span:first-child {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-details a, .contact-details p {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.contact-details a:hover {
  color: var(--color-plumbing);
}

.tva-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
  width: fit-content;
}

.tva-badge strong {
  color: #fff;
}

/* Contact right banner mockup box */
.contact-banner-mockup {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: hidden;
  height: 100%;
  min-height: 320px;
}

.banner-img-container {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  position: relative;
  background: #000;
}

.banner-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-slow);
}

.banner-img-container:hover img {
  transform: scale(1.03);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

footer .footer-logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

footer .footer-logo {
  height: 36px;
  mix-blend-mode: screen;
}

footer p {
  margin-bottom: 12px;
}

footer .footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}

footer .footer-links a {
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

footer .footer-links a:hover {
  color: #fff;
}

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDownFade {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(-360deg); }
}

@keyframes flicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    filter: drop-shadow(0 0 5px var(--color-heating)) drop-shadow(0 0 10px var(--color-heating));
    opacity: 1;
  }
  20%, 24%, 55% {
    filter: none;
    opacity: 0.7;
  }
}

@keyframes pulse-glow {
  0%, 100% {
    filter: drop-shadow(0 0 3px var(--color-plumbing));
    transform: scale(1);
  }
  50% {
    filter: drop-shadow(0 0 8px var(--color-plumbing));
    transform: scale(1.05);
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 992px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 70px 0;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  /* Navigation */
  header .container {
    height: 70px;
  }

  header .btn-cta {
    display: none;
  }

  nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--bg-primary);
    transition: var(--transition-normal);
    z-index: 999;
    border-top: 1px solid var(--border-color);
  }
  
  nav.active {
    left: 0;
  }
  
  nav ul {
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    align-items: flex-start;
  }
  
  nav a {
    font-size: 1.25rem;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  
  /* Hero */
  .hero-text h1 {
    font-size: 2.25rem;
  }
  
  .hero-text h1 span {
    font-size: 1.1rem;
  }
  
  .hero-services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .service-item-card {
    padding: 30px 24px;
  }

  /* Devis Form & Contact */
  #devis-form {
    padding: 32px 20px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .form-group.full-width {
    grid-column: span 1;
  }
  
  .checkbox-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .days-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  footer .footer-links {
    flex-wrap: wrap;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 1.15rem;
  }

  .logo-text span:last-child {
    font-size: 0.65rem;
    letter-spacing: 0.18em;
  }

  .hero-text h1 {
    font-size: 1.75rem;
  }

  .hero-text h1 span {
    font-size: 0.95rem;
  }

  .hero-text p {
    font-size: 1rem;
  }

  .hero-services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-item-card {
    padding: 24px 20px;
  }
  
  #devis-form {
    padding: 24px 16px;
  }
  
  .checkbox-grid {
    grid-template-columns: 1fr;
  }
  
  .days-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .timeslot-container {
    flex-direction: column;
    align-items: flex-start;
  }
  
  /* Contact section mobile fixes */
  .contact-details a, .contact-details p {
    font-size: 0.95rem;
    word-break: break-all;
  }
  
  .tva-badge {
    font-size: 0.75rem;
    padding: 6px 12px;
  }
  
  .contact-item {
    gap: 12px;
  }
}

/* ==========================================================================
   ADMIN BAR & INLINE EDITION STYLING
   ========================================================================== */

.admin-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 22, 28, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-plumbing);
  box-shadow: 0 10px 30px rgba(0, 159, 227, 0.35);
  padding: 14px 28px;
  border-radius: 50px;
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 24px;
  animation: adminBarFadeInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-status {
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-admin-save {
  background: linear-gradient(135deg, var(--color-plumbing), #007bb5);
  color: #fff;
  padding: 8px 20px;
  border-radius: 30px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.btn-admin-save:hover {
  transform: translateY(-1px);
  box-shadow: var(--glow-plumbing);
}

.btn-admin-save:disabled {
  background: var(--text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-admin-view {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 20px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn-admin-view:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* Inline Edit Highlights */
[contenteditable="true"] {
  outline: none;
  border-bottom: 1.5px dashed rgba(0, 159, 227, 0.4);
  transition: all 0.2s ease-in-out;
  cursor: text;
}

[contenteditable="true"]:hover {
  border-bottom-color: var(--color-plumbing);
  background: rgba(0, 159, 227, 0.03);
  border-radius: 4px;
}

[contenteditable="true"]:focus {
  border-bottom: 2px solid var(--color-plumbing);
  background: rgba(0, 159, 227, 0.08);
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 159, 227, 0.1);
}

@keyframes adminBarFadeInUp {
  from {
    opacity: 0;
    transform: translate(-50%, 20px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* Lien admin discret dans le footer (©) */
.admin-secret-link {
  color: inherit;
  text-decoration: none;
  cursor: default;
  background: none;
  border: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.admin-secret-link:hover,
.admin-secret-link:focus,
.admin-secret-link:active {
  color: inherit;
  text-decoration: none;
  outline: none;
  box-shadow: none;
}

/* ==========================================================================
   ADMIN AGENDA UI
   ========================================================================== */

.agenda-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.agenda-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 4px solid var(--color-plumbing);
}

.agenda-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 12px;
}

.agenda-card-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: #fff;
}

.agenda-status {
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.agenda-status.nouveau {
  background: rgba(57, 181, 74, 0.15);
  color: #39b54a;
  border: 1px solid rgba(57, 181, 74, 0.3);
}

.agenda-card-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.agenda-card-body strong {
  color: #fff;
}

.agenda-card-body a {
  color: var(--color-plumbing);
}

.agenda-card-body a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   ADMIN LOGIN OVERLAY
   ========================================================================== */

.admin-login-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8, 10, 14, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  animation: loginOverlayFadeIn 0.3s ease;
}

.admin-login-overlay.hidden {
  animation: loginOverlayFadeOut 0.4s ease forwards;
  pointer-events: none;
}

.login-card {
  background: rgba(22, 28, 38, 0.9);
  border: 1px solid rgba(0, 159, 227, 0.2);
  border-radius: 20px;
  padding: 48px 44px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 159, 227, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 4px;
}

.login-logo img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: cover;
}

.login-brand {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.1em;
}

.login-subtitle {
  display: block;
  font-size: 0.72rem;
  color: var(--color-plumbing);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

.login-lock-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0, 159, 227, 0.08);
  border: 1.5px solid rgba(0, 159, 227, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-plumbing);
  animation: lockPulse 2.5s ease-in-out infinite;
}

.login-lock-icon svg {
  width: 30px;
  height: 30px;
}

.login-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin: 0;
  text-align: center;
}

.login-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-align: center;
  margin: 0;
  line-height: 1.6;
}

.login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login-input-wrapper {
  position: relative;
  width: 100%;
}

.login-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 50px 14px 18px;
  font-size: 1rem;
  color: #fff;
  font-family: var(--font-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}

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

.login-input:focus {
  outline: none;
  border-color: var(--color-plumbing);
  box-shadow: 0 0 0 3px rgba(0, 159, 227, 0.12);
}

.login-input.error {
  border-color: var(--color-heating);
  box-shadow: 0 0 0 3px rgba(227, 6, 19, 0.12);
  animation: loginShake 0.4s ease;
}

.login-eye-btn {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color 0.2s ease;
}

.login-eye-btn:hover {
  color: var(--text-secondary);
}

.login-eye-btn svg {
  width: 18px;
  height: 18px;
}

.login-error {
  font-size: 0.82rem;
  color: #ff6b6b;
  text-align: center;
  margin: 0;
  padding: 8px 12px;
  background: rgba(227, 6, 19, 0.08);
  border-radius: 8px;
  border: 1px solid rgba(227, 6, 19, 0.2);
}

.login-submit-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--color-plumbing), #007bb5);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 14px 24px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--font-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition-normal);
  margin-top: 4px;
}

.login-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 159, 227, 0.4);
}

.login-submit-btn:active {
  transform: translateY(0);
}

/* Animations */
@keyframes loginOverlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes loginOverlayFadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes lockPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 159, 227, 0.3); }
  50% { box-shadow: 0 0 0 10px rgba(0, 159, 227, 0); }
}

@keyframes loginShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}