/* ==========================================================
   /ui/css/base/ljh-gadgets.css
   LJH GADGETS – Button System
   ----------------------------------------------------------
   Ansvar:
   - Klickbara UI-element (knappar)
   - States: hover, active, disabled
   ----------------------------------------------------------
   ÄGER KNAPPAR ENDAST
   Ingen layout, inga formulär, inga komponent-specifika regler
   
   Varianter:
   .ljh-btn-primary    → Primär CTA
   .ljh-btn-secondary  → Sekundär action
   .ljh-btn-positive   → Positiv/bekräftande
   .ljh-btn-frozen     → Låst/inaktiv
   .ljh-btn-close      → Stäng/exit
   .ljh-btn-campaign   → Kampanj CTA
========================================================== */


/* ==========================================================
   1. BUTTON BASE
========================================================== */

.ljh-btn,
.ljh-btn:link,
.ljh-btn:visited {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.6rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.01em;
    font-family: inherit;
    border: 1px solid transparent;
    background: transparent;
    color: #f1f6ff;
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    text-decoration: none;
    transition:
        background 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.18s ease,
        opacity 0.18s ease,
        filter 0.18s ease;
}

button.ljh-btn {
    -webkit-appearance: none;
    appearance: none;
    box-sizing: border-box;
    font: inherit;
}


/* ==========================================================
   HOVER / ACTIVE / DISABLED – BASE
========================================================== */

.ljh-btn:hover {
    transform: translateY(-1px);
    box-shadow:
        0 0 0 1px rgba(160,210,255,0.25),
        0 8px 20px rgba(0,0,0,0.4);
}

.ljh-btn:active {
    transform: translateY(0);
    box-shadow:
        0 0 0 1px rgba(160,210,255,0.35),
        0 0 18px rgba(140,200,255,0.35),
        0 12px 28px rgba(0,0,0,0.55);
    filter: brightness(1.05);
}

.ljh-btn:disabled,
.ljh-btn[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
    transform: none;
}


/* ==========================================================
   2. PRIMARY
========================================================== */

.ljh-btn-primary {
    background: linear-gradient(135deg, #3aa0ff, #1f6ed4);
    color: #ffffff;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 12px;
    padding: 12px 26px;
    min-width: 200px;
    font-weight: 600;
    letter-spacing: 0.02em;
    box-shadow:
        0 10px 26px rgba(0,0,0,0.45),
        0 0 14px rgba(120,190,255,0.35);
}

.ljh-btn-primary:hover {
    transform: translateY(-1px);
    filter: brightness(1.08);
    box-shadow:
        0 0 0 1px rgba(160,210,255,0.35),
        0 0 20px rgba(140,200,255,0.5),
        0 14px 30px rgba(0,0,0,0.55);
}

.ljh-btn-primary:active {
    transform: translateY(0);
    filter: brightness(1.0);
    box-shadow: 0 0 10px rgba(120,180,255,0.45);
}

.ljh-btn-primary:disabled {
    opacity: 0.45;
    filter: grayscale(25%) brightness(0.9);
    box-shadow: none;
}


/* ==========================================================
   3. SECONDARY
========================================================== */

.ljh-btn-secondary {
    background: linear-gradient(
        180deg,
        rgba(255,255,255,0.12),
        rgba(255,255,255,0.06)
    );
    color: #e5edff;
    border: 1px solid rgba(255,255,255,0.28);
    backdrop-filter: blur(10px);
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.25),
        0 8px 20px rgba(0,0,0,0.45);
}


/* ==========================================================
   4. POSITIVE
========================================================== */

.ljh-btn-positive {
    background: linear-gradient(
        180deg,
        rgba(60,200,140,0.55),
        rgba(20,160,100,0.55)
    );
    color: #ecfdf5;
    border: 1px solid rgba(255,255,255,0.35);
    box-shadow:
        inset 0 0 16px rgba(255,255,255,0.15),
        0 10px 26px rgba(20,120,80,0.45);
}


/* ==========================================================
   5. FROZEN / LOCKED
========================================================== */

.ljh-btn-frozen {
    background: rgba(255,255,255,0.12);
    color: #cbd5f5;
    border: 1px solid rgba(255,255,255,0.25);
    box-shadow: inset 0 0 14px rgba(255,255,255,0.2);
    cursor: not-allowed;
}


/* ==========================================================
   6. CLOSE / EXIT
========================================================== */

.ljh-btn-close {
    background: rgba(15,23,42,0.85);
    color: #ffffff;
    border: 1px solid rgba(255,90,90,0.45);
    box-shadow:
        inset 0 0 12px rgba(255,255,255,0.06),
        0 0 10px rgba(255,60,60,0.35);
}

.ljh-btn-close:hover {
    box-shadow:
        0 0 18px rgba(255,60,60,0.6),
        0 0 32px rgba(255,40,40,0.4);
}


/* ==========================================================
   7. CAMPAIGN CTA
========================================================== */

.ljh-btn-campaign {
    background: linear-gradient(
        180deg,
        rgba(255,215,120,0.85),
        rgba(200,140,40,0.85)
    );
    color: #2a1a00;
    border: 1px solid rgba(255,230,150,0.6);
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,0.6),
        0 0 18px rgba(255,200,80,0.55),
        0 10px 28px rgba(0,0,0,0.55);
    font-weight: 700;
}

.ljh-btn-campaign:hover {
    transform: translateY(-2px);
    box-shadow:
        0 0 28px rgba(255,210,100,0.85),
        0 18px 36px rgba(0,0,0,0.65);
}