/* ============================================
   BUTTON STYLES
   ============================================ */

.btn-main {
    background: linear-gradient(135deg, var(--primary) 0%, #ffb74d 50%, var(--primary) 100%);
    background-size: 200% 200%;
    color: #000;
    font-weight: bold;
    padding: 16px;
    border: none;
    border-radius: 12px;
    font-size: 17px;
    width: 100%;
    margin-top: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow:
        0 6px 20px rgba(255, 213, 79, 0.3),
        0 0 15px rgba(255, 213, 79, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    animation: buttonShine 2s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.btn-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-main:active {
    transform: translateY(-2px) scale(0.98);
}

.btn-blue {
    background: var(--btn-blue);
    color: white;
    margin-top: 10px;
}

.btn-danger {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.98) !important;
    border: 3px solid rgba(255, 210, 210, 0.22) !important;
    background: linear-gradient(45deg, rgba(255, 82, 82, 0.95), rgba(198, 40, 40, 0.95)) !important;
    box-shadow:
        0 10px 28px rgba(0, 0, 0, 0.55),
        0 0 18px rgba(255, 82, 82, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
}

/* 일반설정(Setting) 내 전체 초기화 버튼 강제 붉은색 */
.setting-modal-wrapper .btn-danger {
    background: linear-gradient(45deg, rgba(255, 82, 82, 0.98), rgba(183, 28, 28, 0.98)) !important;
    color: #fff !important;
    border-color: rgba(255, 210, 210, 0.28) !important;
}

/* Common Modal Button Style (Consolidated from shop/setting modals) */
.modal-btn-main {
    height: 58px;
    border-radius: 14px;
    border: 3px solid var(--modal-btn-border);
    font-weight: 900;
    font-size: clamp(14px, 3.5vw, 16px);
    letter-spacing: 0.5px;
    box-shadow: var(--modal-shadow), var(--modal-inner-shadow);
    animation: none !important;
    background-size: initial !important;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
    margin-top: 10px;
    cursor: pointer;
    color: var(--modal-btn-text);
    background: linear-gradient(
        45deg,
        var(--modal-btn-gradient-start),
        var(--modal-btn-gradient-end)
    );
}

.modal-btn-main.btn-blue {
    background: linear-gradient(
        45deg,
        rgba(41, 121, 255, 0.95),
        rgba(41, 121, 255, 0.85)
    ) !important;
    color: #fff !important;
}

.btn-boss-mode {
    background: linear-gradient(45deg, var(--boss-color), #ab47bc);
    color: #fff;
    box-shadow: 0 4px 15px rgba(224, 64, 251, 0.2);
}

.btn-shop {
    background: linear-gradient(45deg, #5c6bc0, #7986cb);
    color: white;
    box-shadow: 0 4px 15px rgba(92, 107, 192, 0.2);
}

.btn-inv {
    background: linear-gradient(45deg, #4caf50, #81c784);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.2);
}

/* Game Screen Buttons */
.option-btn {
    background: #37474f;
    color: #e0e0e0;
    border: 1px solid #455a64;
    padding: 12px 16px;
    font-size: clamp(16px, 5.5cqmin, 34px);
    border-radius: 8px;
    text-align: left;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.option-btn:active {
    transform: translateY(-1px) scale(0.98);
}

.option-btn.disabled {
    opacity: 0.3;
    pointer-events: none;
}

/* Boss Mode UI */
.boss-ui {
    width: 100%;
    display: none;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    justify-content: center;
}
#boss-title {
    font-size: 14px;
}
.boss-hint {
    font-size: 24px;
    letter-spacing: 4px;
    text-align: center;
    font-family: monospace;
    color: var(--success);
}
.boss-input {
    padding: 12px;
    font-size: clamp(16px, 5.5cqmin, 34px);
    text-align: center;
    background: #222;
    border: 2px solid var(--primary);
    color: white;
    border-radius: 8px;
    outline: none;
}

.boss-submit {
    background: var(--danger);
    color: white;
    border: 2px solid rgba(255, 82, 82, 0.5);
    padding: 12px;
    font-size: clamp(16px, 5.5cqmin, 34px);
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(255, 82, 82, 0.3);
}

.boss-submit:active {
    transform: translateY(-1px) scale(0.98);
}

.boss-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* exit_btn 이미지 스타일 */
img[src*='exit_btn'] {
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

img[src*='exit_btn']:active {
    opacity: 0.8;
    transform: scale(0.98);
}

/* Shop buttons */
.buy-btn {
    background: #4caf50;
    border: none;
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}
.buy-btn.equipped {
    background: #ff9800;
    pointer-events: none;
}
.buy-btn.owned {
    background: #555;
    pointer-events: none;
}

/* Form elements */
label {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

select {
    width: 100%;
    padding: 14px;
    margin: 0 0 20px 0;
    background: linear-gradient(135deg, rgba(30, 30, 40, 0.95) 0%, rgba(20, 20, 30, 0.95) 100%);
    color: #ffd54f;
    border: 2px solid rgba(255, 213, 79, 0.4);
    border-radius: 10px;
    -webkit-appearance: none;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23FFD54F%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 0.65em auto;
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    font-size: 15px;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

select option {
    background: #1e1e1e;
    color: #ffd54f;
    padding: 10px;
    font-weight: 500;
}

select option:checked {
    background: #2a2a2a;
    color: #ffeb3b;
}

.adventure-settings {
    text-align: left;
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2) 0%, rgba(30, 20, 40, 0.2) 100%);
    border-radius: 12px;
    border: 1px solid rgba(255, 213, 79, 0.15);
}

/* Music Toggle Button */
.music-toggle-btn {
    display: block;
    width: 40px;
    height: 40px;
    margin: 0 auto 10px auto; /* Exit button above with spacing */
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex; /* Centering emoji */
    align-items: center;
    justify-content: center;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    padding: 0;
    line-height: 1;
}

.music-toggle-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    border-color: rgba(255, 255, 255, 0.6);
    transform: scale(1.05);
}

.music-toggle-btn:active {
    transform: scale(0.95);
}