/* ============================================================
   ELHASSANE STUDIO - Brand Identity & Design Tokens
   Clean, professional, light-first construction platform
   ============================================================ */

:root {
  /* Brand — single sky-blue (holographic) palette:
     neutral slate base + sky-blue family only */
  --brand-primary: #0F172A;
  --brand-secondary: #0284C7;       /* deep sky-600 — interactive elements */
  --brand-secondary-dark: #0369A1;  /* sky-700 — text, hover */
  --brand-accent: #0EA5E9;          /* sky-500 — glow, decorative borders */
  --brand-accent-hover: #38BDF8;    /* sky-400 — glow hover */
  --brand-accent-light: #E0F2FE;    /* sky-100 — tints, chips */
  --brand-success: #059669;         /* semantic only */
  --brand-success-light: #ECFDF5;
  --brand-warning: #D97706;
  --brand-warning-light: #FFFBEB;
  --brand-danger: #DC2626;
  --brand-danger-light: #FEF2F2;
  --brand-info: #0EA5E9;
  --brand-info-light: #F0F9FF;

  /* Surfaces — cool off-white base, white cards */
  --bg-page: #F4F6F9;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F6F8FB;
  --bg-nav: #FFFFFF;
  --bg-input: #F1F5F9;

  /* Text */
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --text-inverse: #FFFFFF;

  /* Borders */
  --border-default: #E5E9F0;
  --border-strong: #CBD2DC;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadows — soft, diffused */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 24px rgba(15, 23, 42, 0.08), 0 4px 6px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 48px rgba(15, 23, 42, 0.1), 0 8px 10px rgba(15, 23, 42, 0.04);

  /* Fonts */
  --font-arabic: 'Cairo', 'Inter', sans-serif;
  --font-english: 'Inter', 'Poppins', 'Montserrat', sans-serif;
}

.dark {
  --bg-page: #0F172A;
  --bg-card: #1E293B;
  --bg-card-hover: #263347;
  --bg-nav: #1E293B;
  --bg-input: #334155;
  --text-primary: #F1F5F9;
  --text-secondary: #CBD5E1;
  --text-muted: #64748B;
  --border-default: #334155;
  --border-strong: #475569;
  --brand-secondary: #38BDF8;        /* sky-400 */
  --brand-secondary-dark: #7DD3FC;   /* sky-300 */
  --brand-accent: #7DD3FC;           /* sky-300 — glow in dark */
  --brand-accent-hover: #BAE6FD;     /* sky-200 */
  --brand-accent-light: #0C4A6E;     /* sky-900 — dark tint */
  --brand-success-light: #064E3B;
  --brand-warning-light: #451A03;
  --brand-danger-light: #7F1D1D;
  --brand-info-light: #0C4A6E;
}

body {
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: var(--font-english);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
[dir="rtl"] body { font-family: var(--font-arabic); }

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-english);
  font-weight: 800;
  font-size: 18px;
  color: var(--text-primary);
  text-decoration: none;
}
.brand-logo .logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 18px;
}
.brand-logo .logo-text {
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.dark .brand-logo .logo-text {
  background: linear-gradient(135deg, #e2e8f0, #93c5fd);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-logo .logo-sub {
  font-size: 8px; font-weight: 500;
  color: var(--text-muted); letter-spacing: 2px;
}

.brand-badge {
  display: inline-block; padding: 4px 10px;
  background: var(--brand-accent-light);
  color: var(--brand-accent);
  font-size: 10px; font-weight: 700;
  border-radius: var(--radius-full);
  letter-spacing: 1px; text-transform: uppercase;
}

/* Primary action button (used in auth card + client portal) */
.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-secondary), var(--brand-primary));
  color: #ffffff;
  border: none;
  padding: 11px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 200ms ease, box-shadow 200ms ease, filter 200ms ease;
  box-shadow: 0 6px 16px -6px rgba(2, 132, 199, 0.4);
}
.btn-brand:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px -8px rgba(2, 132, 199, 0.5);
}
.btn-brand:active { transform: translateY(0); filter: brightness(0.98); }

.brand-footer {
  text-align: center; padding: 16px 20px;
  background: var(--brand-primary); color: var(--text-inverse);
  font-size: 11px;
}
.brand-footer .brand-name { color: var(--brand-secondary); font-weight: 700; }