@import "tailwindcss";

/* ─── Glass Design System ─── */

:root {
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-bg-heavy: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-border-strong: rgba(255, 255, 255, 0.5);
  --glass-dark: rgba(17, 24, 39, 0.85);
  --glass-dark-heavy: rgba(17, 24, 39, 0.92);
  --glass-blur: 16px;
  --glass-blur-heavy: 24px;
  --gold: #fabf04;
  --gold-light: rgba(250, 191, 4, 0.15);
  --gold-glow: rgba(250, 191, 4, 0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-glass-hover: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-gold: 0 4px 24px rgba(250, 191, 4, 0.25);
}

/* ─── Animated background ─── */

body.glass-bg {
  background: #f0f0f5;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(250, 191, 4, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(250, 191, 4, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ─── Glass panel ─── */

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-glass);
}

.glass-heavy {
  background: var(--glass-bg-heavy);
  backdrop-filter: blur(var(--glass-blur-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
  border: 1px solid var(--glass-border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-glass);
}

.glass-dark {
  background: var(--glass-dark);
  backdrop-filter: blur(var(--glass-blur-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.glass-dark-heavy {
  background: var(--glass-dark-heavy);
  backdrop-filter: blur(var(--glass-blur-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.glass-gold {
  background: rgba(250, 191, 4, 0.12);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid rgba(250, 191, 4, 0.3);
  border-radius: var(--radius);
  box-shadow: var(--shadow-gold);
}

/* ─── Glass buttons ─── */

.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xs);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;

  &:hover {
    background: var(--glass-bg-heavy);
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-1px);
  }
}

.btn-gold {
  background: var(--gold);
  border: 1px solid rgba(250, 191, 4, 0.6);
  border-radius: var(--radius-xs);
  box-shadow: var(--shadow-gold);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;

  &:hover {
    box-shadow: 0 6px 28px rgba(250, 191, 4, 0.4);
    transform: translateY(-1px);
  }
}

.btn-dark {
  background: var(--glass-dark-heavy);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xs);
  color: white;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;

  &:hover {
    background: rgba(99, 102, 241, 0.85);
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
  }
}

/* ─── Glass input ─── */

.input-glass {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-xs);
  transition: all 0.2s ease;

  &:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-light), var(--shadow-glass);
  }
}

/* ─── Page containers ─── */

.page-container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 0;

  @media (min-width: 768px) {
    width: 80%;
    padding: 3rem 0;
  }
}

.heading-page {
  border-bottom: 2px solid var(--gold);
  display: inline-block;
  padding-bottom: 0.5rem;
}

.admin-content .page-container {
  width: 95%;
  max-width: none;

  @media (min-width: 768px) {
    width: 90%;
  }
}

/* ─── Admin layout ─── */

.admin-wrapper {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.admin-sidebar {
  width: 260px;
  flex-shrink: 0;
  overflow-y: auto;
}

.admin-content {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
}

@media (max-width: 1023px) {
  .admin-sidebar {
    position: fixed;
    left: -260px;
    top: 0;
    bottom: 0;
    z-index: 50;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .admin-sidebar.open { left: 0; }
  .admin-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 40;
  }
  .admin-sidebar.open + .admin-overlay { display: block; }
}

/* ─── Sidebar nav items ─── */

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.875rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  color: rgba(255, 255, 255, 0.75);

  &:hover {
    background: rgba(30, 41, 59, 0.9);
    color: white;
  }

  &.active {
    background: var(--gold);
    color: #111827;
    box-shadow: 0 2px 12px rgba(250, 191, 4, 0.3);
  }

  &.active-danger {
    background: rgba(220, 38, 38, 0.8);
    color: white;
    box-shadow: 0 2px 12px rgba(220, 38, 38, 0.3);
  }
}

/* ─── Scrollbar styling ─── */

.admin-sidebar::-webkit-scrollbar {
  width: 4px;
}
.admin-sidebar::-webkit-scrollbar-track {
  background: transparent;
}
.admin-sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

/* ─── Smooth transitions ─── */

* {
  scroll-behavior: smooth;
}

/* ─── Devis lines drag & drop ─── */
.line-row.dragging { opacity: 0.4; }
.line-row.drag-over { border-top: 2px solid #fabf04; }