/*
  Styles principaux du site FLEXI-IT
  - Design sobre, moderne, responsive
*/

:root {
  --color-bg: #050816;
  --color-bg-alt: #0b1020;
  --color-surface: #101626;
  --color-surface-alt: #151b2c;
  --color-primary: #3b82f6;
  --color-primary-soft: rgba(59, 130, 246, 0.15);
  --color-primary-strong: #2563eb;
  --color-accent: #22c55e;
  --color-text: #f9fafb;
  --color-text-soft: #e5e7eb;
  --color-muted: #9ca3af;
  --color-border: #1f2937;
  --radius-lg: 1rem;
  --radius-md: 0.75rem;
  --radius-sm: 0.5rem;
  --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.45);
  --shadow-subtle: 0 10px 30px rgba(15, 23, 42, 0.35);
  --shadow-outline: 0 0 0 1px rgba(148, 163, 184, 0.4);
  --transition-fast: 150ms ease-out;
  --transition-normal: 200ms ease;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #1f2937 0, #020617 40%, #020617 100%);
  color: var(--color-text);
}

body {
  min-height: 100vh;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, rgba(37, 99, 235, 0.09), transparent 55%),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.98));
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.section-intro {
  margin-bottom: 2.5rem;
  max-width: 640px;
  color: var(--color-muted);
}

.two-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.75rem;
  align-items: flex-start;
}

@media (max-width: 900px) {
  .two-cols {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.86));
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
}

.logo-area {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.logo-img {
  width: 36px;
  height: 36px;
}

.logo-text {
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  font-size: 0.95rem;
}

.nav-list a {
  color: var(--color-muted);
  padding: 0.35rem 0.1rem;
  border-radius: 999px;
  transition: color var(--transition-fast), background var(--transition-fast);
}

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

.nav-cta {
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(115deg, var(--color-primary), var(--color-primary-strong));
  color: white !important;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.45);
}

.nav-cta:hover {
  background: linear-gradient(115deg, var(--color-primary-strong), #1d4ed8);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.2rem;
  background: none;
  border: none;
  padding: 0.3rem;
  cursor: pointer;
}

.nav-toggle span {
  width: 1.4rem;
  height: 2px;
  background: var(--color-text);
  border-radius: 999px;
}

@media (max-width: 800px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    position: absolute;
    right: 1.5rem;
    top: 3.5rem;
    flex-direction: column;
    align-items: flex-start;
    background: rgba(15, 23, 42, 0.98);
    padding: 0.8rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: var(--shadow-subtle);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
  }

  .nav-list.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
}

/* Hero */

.hero {
  padding: 5rem 0 4.5rem;
  background:
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.24), transparent 55%),
    radial-gradient(circle at 10% 80%, rgba(34, 197, 94, 0.18), transparent 55%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.1fr);
  gap: 3.25rem;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: radial-gradient(circle at top left, rgba(59, 130, 246, 0.45), transparent 52%);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-soft);
  margin-bottom: 1.2rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 3vw, 2.6rem);
  line-height: 1.12;
  margin: 0 0 1rem;
}

.hero-subtitle {
  margin: 0 0 1.8rem;
  color: var(--color-text-soft);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 0.85rem;
}

.hero-note {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.hero-aside {
  display: flex;
  justify-content: flex-end;
}

.hero-panel {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.9));
  border-radius: 1.2rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  padding: 1.6rem 1.5rem 1.4rem;
  box-shadow: var(--shadow-soft);
  max-width: 26rem;
}

.hero-panel h2 {
  font-size: 1.2rem;
  margin-top: 0;
}

.hero-panel p {
  color: var(--color-text-soft);
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 1.1rem 0 0;
}

.hero-list li {
  padding: 0.3rem 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-aside {
    justify-content: flex-start;
  }
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  font-weight: 500;
  transition: background var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(115deg, var(--color-primary), var(--color-primary-strong));
  color: white;
  box-shadow: 0 14px 35px rgba(37, 99, 235, 0.55);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.6);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.7);
  color: var(--color-text);
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.btn-secondary:hover {
  background: rgba(15, 23, 42, 0.9);
}

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

/* Lists et blocs */

.check-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}

.check-list li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.6rem;
  color: var(--color-text-soft);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.icon-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.icon-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem 0.9rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
}

.icon-circle {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 0.8rem;
}

.icon-list p {
  color: var(--color-text-soft);
  margin: 0.1rem 0 0;
}

/* Cards services */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.7rem;
}

@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .cards-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.card {
  background: linear-gradient(145deg, var(--color-surface), var(--color-surface-alt));
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.3rem 1.25rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: var(--shadow-subtle);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.card p {
  color: var(--color-text-soft);
}

.card ul {
  padding-left: 1.1rem;
  color: var(--color-muted);
}

.card-example {
  margin-top: 0.7rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Méthode */

.steps {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.4rem;
}

.steps li {
  background: rgba(15, 23, 42, 0.9);
  border-radius: var(--radius-md);
  padding: 1rem 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.steps h3 {
  margin: 0 0 0.5rem;
  font-size: 0.98rem;
}

.steps p {
  color: var(--color-text-soft);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .steps {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Contact */

.contact-section {
  background: radial-gradient(circle at top, rgba(59, 130, 246, 0.24), transparent 50%),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.98));
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: 2.5rem;
  align-items: flex-start;
}

@media (max-width: 960px) {
  .contact-inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

.contact-highlight {
  border-radius: var(--radius-md);
  border: 1px solid rgba(59, 130, 246, 0.55);
  background: rgba(15, 23, 42, 0.95);
  padding: 0.8rem 0.9rem;
  margin: 1rem 0 0.6rem;
}

.contact-rgpd {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.contact-form-wrapper {
  background: rgba(15, 23, 42, 0.96);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.4rem 1.3rem;
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: var(--shadow-soft);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }
}

.form-field label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border-radius: 0.6rem;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: rgba(15, 23, 42, 0.92);
  color: var(--color-text);
  padding: 0.6rem 0.7rem;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: rgba(59, 130, 246, 0.95);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.7);
  background: rgba(15, 23, 42, 0.98);
}

.form-field textarea {
  resize: vertical;
}

.checkbox-field {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
}

.checkbox-field input[type="checkbox"] {
  margin-top: 0.15rem;
}

.checkbox-field label {
  margin: 0;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.required {
  color: #f97316;
}

.form-footnote {
  font-size: 0.85rem;
  color: var(--color-muted);
  text-align: center;
}

.form-message {
  min-height: 1.4rem;
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
}

.form-message--error {
  color: #fca5a5;
}

.form-message--success {
  color: #bbf7d0;
}

/* Footer */

.site-footer {
  padding: 1.4rem 0 1.8rem;
  border-top: 1px solid rgba(31, 41, 55, 1);
  background: radial-gradient(circle at top, rgba(37, 99, 235, 0.18), transparent 52%), #020617;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.footer-note {
  opacity: 0.7;
}

/* Utilitaires */

.full-width-on-mobile {
  width: auto;
}

@media (max-width: 480px) {
  .full-width-on-mobile {
    width: 100%;
  }
}