/* ============================================================================
   WellApp Design System 2026 — Tokens
   ----------------------------------------------------------------------------
   Single source of truth a CSS változókhoz: színek, tipográfia, spacing,
   border-radius, shadow, motion, glassmorphism. Light + dark mode.
   Forrás: docs/DESIGN_SYSTEM_2026.md (Sprint 1)
   ============================================================================ */

:root {
    /* === FONT FAMILIES === */
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* === TYPE SCALE (1.25 — perfect fourth) === */
    --text-xs:    0.75rem;     /* 12px */
    --text-sm:    0.875rem;    /* 14px */
    --text-base:  1rem;        /* 16px */
    --text-lg:    1.125rem;    /* 18px */
    --text-xl:    1.25rem;     /* 20px */
    --text-2xl:   1.5rem;      /* 24px */
    --text-3xl:   1.875rem;    /* 30px */
    --text-4xl:   2.25rem;     /* 36px */
    --text-5xl:   3rem;        /* 48px */

    /* === LINE HEIGHTS === */
    --leading-tight:   1.25;
    --leading-snug:    1.375;
    --leading-normal:  1.5;
    --leading-relaxed: 1.625;
    --leading-loose:   1.75;

    /* === FONT WEIGHTS === */
    --weight-light:     300;
    --weight-normal:    400;
    --weight-medium:    500;
    --weight-semibold:  600;
    --weight-bold:      700;
    --weight-extrabold: 800;

    /* === SPACING (8 px alapú) === */
    --space-0:    0;
    --space-px:   1px;
    --space-0_5:  0.125rem;    /* 2px */
    --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-none: 0;
    --radius-sm:   0.25rem;    /* 4px */
    --radius-md:   0.5rem;     /* 8px */
    --radius-lg:   0.75rem;    /* 12px */
    --radius-xl:   1rem;       /* 16px — card default */
    --radius-2xl:  1.5rem;     /* 24px — modal */
    --radius-full: 9999px;

    /* === MOTION (cubic-béziér + időtartamok) === */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out:   cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);

    --duration-fast:   150ms;
    --duration-normal: 200ms;
    --duration-slow:   300ms;
    --duration-slower: 500ms;

    /* === Z-INDEX === */
    --z-base:     0;
    --z-card:     1;
    --z-sticky:   50;
    --z-dropdown: 100;
    --z-modal:    200;
    --z-toast:    300;
    --z-skiplink: 1000;

    /* ====================================================================
       LIGHT MODE — DEFAULT
       ==================================================================== */

    /* Brand */
    --color-primary:        #1E40AF;
    --color-primary-hover:  #1E3A8A;
    --color-primary-light:  #DBEAFE;

    --color-secondary:       #0EA5E9;
    --color-secondary-hover: #0284C7;

    --color-tertiary:        #14B8A6;

    --color-accent:        #D97706;
    --color-accent-hover:  #B45309;

    /* Semantic */
    --color-success:  #047857;
    --color-warning:  #92400E;
    --color-critical: #B91C1C;
    --color-info:     #1E40AF;

    /* Neutral / Surface */
    --color-bg:          #F8FAFC;
    --color-bg-elevated: #FFFFFF;
    --color-bg-muted:    #F1F5F9;
    --color-bg-sunken:   #E2E8F0;

    --color-text:         #0F172A;
    --color-text-muted:   #475569;
    --color-text-subtle:  #64748B;
    --color-text-inverse: #FFFFFF;

    --color-border:        #E2E8F0;
    --color-border-strong: #CBD5E1;
    --color-ring:          rgba(30, 64, 175, 0.5);

    /* Glassmorphism (light) */
    --glass-bg:     rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-blur:   blur(12px);

    /* Shadows */
    --shadow-sm:   0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md:   0 4px 6px rgba(15, 23, 42, 0.08);
    --shadow-lg:   0 10px 25px rgba(15, 23, 42, 0.10);
    --shadow-xl:   0 20px 40px rgba(15, 23, 42, 0.15);
    --shadow-glow: 0 0 0 4px var(--color-ring);
}

/* ============================================================================
   DARK MODE — automatikus a rendszer-beállítás alapján
   ============================================================================ */
@media (prefers-color-scheme: dark) {
    :root {
        /* Brand — világosabb tónusok a dark háttéren */
        --color-primary:        #60A5FA;
        --color-primary-hover:  #93C5FD;
        --color-primary-light:  rgba(96, 165, 250, 0.15);

        --color-secondary:       #38BDF8;
        --color-secondary-hover: #7DD3FC;

        --color-tertiary:        #2DD4BF;

        --color-accent:        #FBBF24;
        --color-accent-hover:  #FCD34D;

        /* Semantic */
        --color-success:  #34D399;
        --color-warning:  #FBBF24;
        --color-critical: #F87171;
        --color-info:     #60A5FA;

        /* Neutral / Surface — Modern Cinema Mobile (NEM pure black) */
        --color-bg:          #020617;   /* slate 950 */
        --color-bg-elevated: #0F172A;   /* slate 900 */
        --color-bg-muted:    #1E293B;   /* slate 800 */
        --color-bg-sunken:   #334155;   /* slate 700 */

        --color-text:         #F1F5F9;
        --color-text-muted:   #CBD5E1;
        --color-text-subtle:  #94A3B8;
        --color-text-inverse: #0F172A;

        --color-border:        rgba(255, 255, 255, 0.08);
        --color-border-strong: rgba(255, 255, 255, 0.16);
        --color-ring:          rgba(96, 165, 250, 0.5);

        /* Glassmorphism (dark) */
        --glass-bg:     rgba(15, 23, 42, 0.65);
        --glass-border: rgba(255, 255, 255, 0.08);

        /* Shadows */
        --shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-md:   0 4px 6px rgba(0, 0, 0, 0.4);
        --shadow-lg:   0 10px 25px rgba(0, 0, 0, 0.5);
        --shadow-xl:   0 20px 40px rgba(0, 0, 0, 0.6);
        --shadow-glow: 0 0 30px rgba(96, 165, 250, 0.3);
    }
}

/* ============================================================================
   MANUAL DARK MODE TOGGLE — data-theme="dark" a <html>-en
   (Sprint 2 fogja használni a toggle UI-t, de a támogatás már most él)
   ============================================================================ */
[data-theme="dark"] {
    --color-primary:        #60A5FA;
    --color-primary-hover:  #93C5FD;
    --color-primary-light:  rgba(96, 165, 250, 0.15);

    --color-secondary:       #38BDF8;
    --color-secondary-hover: #7DD3FC;

    --color-tertiary:        #2DD4BF;

    --color-accent:        #FBBF24;
    --color-accent-hover:  #FCD34D;

    --color-success:  #34D399;
    --color-warning:  #FBBF24;
    --color-critical: #F87171;
    --color-info:     #60A5FA;

    --color-bg:          #020617;
    --color-bg-elevated: #0F172A;
    --color-bg-muted:    #1E293B;
    --color-bg-sunken:   #334155;

    --color-text:         #F1F5F9;
    --color-text-muted:   #CBD5E1;
    --color-text-subtle:  #94A3B8;
    --color-text-inverse: #0F172A;

    --color-border:        rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.16);
    --color-ring:          rgba(96, 165, 250, 0.5);

    --glass-bg:     rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);

    --shadow-sm:   0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md:   0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg:   0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl:   0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px rgba(96, 165, 250, 0.3);
}

[data-theme="light"] {
    --color-primary:        #1E40AF;
    --color-primary-hover:  #1E3A8A;
    --color-primary-light:  #DBEAFE;

    --color-secondary:       #0EA5E9;
    --color-secondary-hover: #0284C7;

    --color-tertiary:        #14B8A6;

    --color-accent:        #D97706;
    --color-accent-hover:  #B45309;

    --color-success:  #047857;
    --color-warning:  #92400E;
    --color-critical: #B91C1C;
    --color-info:     #1E40AF;

    --color-bg:          #F8FAFC;
    --color-bg-elevated: #FFFFFF;
    --color-bg-muted:    #F1F5F9;
    --color-bg-sunken:   #E2E8F0;

    --color-text:         #0F172A;
    --color-text-muted:   #475569;
    --color-text-subtle:  #64748B;
    --color-text-inverse: #FFFFFF;

    --color-border:        #E2E8F0;
    --color-border-strong: #CBD5E1;
    --color-ring:          rgba(30, 64, 175, 0.5);

    --glass-bg:     rgba(255, 255, 255, 0.65);
    --glass-border: rgba(255, 255, 255, 0.18);

    --shadow-sm:   0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md:   0 4px 6px rgba(15, 23, 42, 0.08);
    --shadow-lg:   0 10px 25px rgba(15, 23, 42, 0.10);
    --shadow-xl:   0 20px 40px rgba(15, 23, 42, 0.15);
    --shadow-glow: 0 0 0 4px var(--color-ring);
}