/* ============================================
   MEDICODA — Design Tokens & Theme Variables
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@300;400;500;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    /* ── Brand Colors (Medical Emerald & Slate Theme) ── */
    --color-primary: #059669;
    --color-primary-hover: #047857;
    --color-primary-active: #065F46;
    --color-primary-light: #ECFDF5;
    --color-primary-lighter: #F0FDF4;
    --color-primary-dark: #064E3B;
    --color-primary-rgb: 5, 150, 105;
    
    --color-accent: #0D9488;
    --color-accent-light: #CCFBF1;
    --color-accent-dark: #115E59;
    --color-accent-rgb: 13, 148, 136;

    --color-secondary: #0284C7;
    --color-secondary-light: #E0F2FE;

    /* ── Neutral Palette ── */
    --color-white: #FFFFFF;
    --color-black: #0F172A;
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;

    /* ── Semantic Backgrounds & Surfaces ── */
    --color-background: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-surface-hover: #F8FAFC;
    --color-surface-elevated: #FFFFFF;
    --color-glass-bg: rgba(255, 255, 255, 0.85);
    --color-glass-border: rgba(255, 255, 255, 0.6);
    
    /* ── Text Colors ── */
    --color-text: #0F172A;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-text-on-primary: #FFFFFF;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    --color-divider: #E2E8F0;

    /* ── Status & Feedback ── */
    --color-success: #10B981;
    --color-success-light: #ECFDF5;
    --color-warning: #F59E0B;
    --color-warning-light: #FFFBEB;
    --color-danger: #EF4444;
    --color-danger-light: #FEF2F2;
    --color-info: #3B82F6;
    --color-info-light: #EFF6FF;

    /* ── Appointment Status Colors ── */
    --color-status-scheduled: #0284C7;
    --color-status-waiting: #F59E0B;
    --color-status-completed: #10B981;
    --color-status-cancelled: #EF4444;
    --color-status-no-show: #64748B;

    /* ── Typography ── */
    --font-arabic: 'Tajawal', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, sans-serif;
    --font-latin: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;

    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-md: 1.125rem;   /* 18px */
    --font-size-lg: 1.25rem;    /* 20px */
    --font-size-xl: 1.5rem;     /* 24px */
    --font-size-2xl: 1.875rem;  /* 30px */
    --font-size-3xl: 2.25rem;   /* 36px */
    --font-size-4xl: 3rem;      /* 48px */
    --font-size-5xl: 3.75rem;   /* 60px */

    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    --line-height-tight: 1.2;
    --line-height-snug: 1.35;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;
    --line-height-loose: 1.9;

    /* ── Spacing ── */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */

    /* ── Border Radius ── */
    --radius-xs: 0.25rem;    /* 4px */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.625rem;   /* 10px */
    --radius-lg: 0.875rem;   /* 14px */
    --radius-xl: 1.25rem;    /* 20px */
    --radius-2xl: 1.75rem;   /* 28px */
    --radius-full: 9999px;

    /* ── Gradients ── */
    --gradient-primary: linear-gradient(135deg, #059669 0%, #0D9488 100%);
    --gradient-primary-subtle: linear-gradient(135deg, rgba(5, 150, 105, 0.08) 0%, rgba(13, 148, 136, 0.04) 100%);
    --gradient-hero-bg: radial-gradient(circle at 85% 15%, rgba(5, 150, 105, 0.12) 0%, transparent 60%),
                         radial-gradient(circle at 15% 85%, rgba(2, 132, 199, 0.08) 0%, transparent 50%);
    --gradient-card-glow: linear-gradient(135deg, rgba(5, 150, 105, 0.1) 0%, rgba(13, 148, 136, 0.02) 100%);
    --gradient-dark-footer: linear-gradient(180deg, #0F172A 0%, #090D16 100%);

    /* ── Shadows ── */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 6px 16px -2px rgba(15, 23, 42, 0.07), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.09), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 24px 48px -8px rgba(15, 23, 42, 0.12), 0 8px 20px -4px rgba(15, 23, 42, 0.05);
    --shadow-glow: 0 8px 25px -4px rgba(5, 150, 105, 0.35);

    /* ── Transitions ── */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* ── Z-Index ── */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal-backdrop: 300;
    --z-modal: 400;
    --z-chat: 500;
    --z-toast: 600;
    --z-tooltip: 700;

    /* ── Layout ── */
    --header-height: 4.5rem;
    --sidebar-width: 270px;
    --sidebar-collapsed-width: 68px;
    --container-max: 1240px;
    --container-narrow: 840px;
}

/* ── Dark Theme Tokens (for Dashboard & Portal) ── */
[data-theme="dark"] {
    --color-background: #0B0F19;
    --color-surface: #131B2E;
    --color-surface-hover: #1E293B;
    --color-surface-elevated: #1E293B;
    --color-text: #F1F5F9;
    --color-text-secondary: #94A3B8;
    --color-text-muted: #64748B;
    --color-border: #1E293B;
    --color-border-light: #162035;
    --color-divider: #1E293B;
    --color-glass-bg: rgba(19, 27, 46, 0.85);
    --color-glass-border: rgba(255, 255, 255, 0.08);
}