/* ============================================
   마음부고 - 글로벌 스타일시트
   키아로스쿠로 미학 기반
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg-primary: #0a0a0a;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #2a2a2a;
    --color-accent-gold: #d4af37;
    --color-text-primary: #ffffff;
    --color-text-secondary: #d0d0d0;
    --color-text-tertiary: #808080;
    --color-success: #28a745;
    --color-error: #dc3545;
    --color-warning: #ffc107;
    --color-info: #17a2b8;
    --transition-base: 0.3s ease;
}

html, body {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
}

body {
    min-height: 100vh;
}

/* ============================================
   컨테이너
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-sm {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   타이포그래피
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--color-accent-gold);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-text-primary);
}

/* ============================================
   버튼
   ============================================ */

.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--color-accent-gold);
    color: var(--color-bg-primary);
}

.btn-primary:hover {
    background: #e8c547;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-accent-gold);
}

.btn-secondary:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-accent-gold);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 15px 32px;
    font-size: 1.1rem;
}

/* ============================================
   폼 요소
   ============================================ */

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="time"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-bg-tertiary);
    border-radius: 6px;
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-base);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

input[type="radio"],
input[type="checkbox"] {
    margin-right: 0.5rem;
}

/* ============================================
   카드
   ============================================ */

.card {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 8px;
    padding: 24px;
    transition: all var(--transition-base);
}

.card:hover {
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.1);
    transform: translateY(-5px);
}

/* ============================================
   그리드
   ============================================ */

.grid {
    display: grid;
    gap: 20px;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* ============================================
   테이블
   ============================================ */

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

th {
    background: var(--color-bg-tertiary);
    color: var(--color-accent-gold);
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--color-accent-gold);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--color-bg-tertiary);
}

tr:hover {
    background: var(--color-bg-secondary);
}

/* ============================================
   알림
   ============================================ */

.alert {
    padding: 15px 20px;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border-color: var(--color-success);
    color: #28a745;
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    border-color: var(--color-error);
    color: #dc3545;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border-color: var(--color-warning);
    color: #ffc107;
}

.alert-info {
    background: rgba(23, 162, 184, 0.1);
    border-color: var(--color-info);
    color: #17a2b8;
}

/* ============================================
   유틸리티
   ============================================ */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.text-muted {
    color: var(--color-text-tertiary);
}

.text-gold {
    color: var(--color-accent-gold);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

.hidden {
    display: none;
}

.visible {
    display: block;
}

/* ============================================
   반응형 디자인
   ============================================ */

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    .container,
    .container-sm {
        padding: 0 15px;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 8px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    h3 {
        font-size: 1rem;
    }

    body {
        font-size: 14px;
    }

    .container,
    .container-sm {
        padding: 0 10px;
    }

    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}

/* ============================================
   애니메이션
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in {
    animation: slideIn 0.6s ease-out;
}

/* ============================================
   스크롤바
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-accent-gold);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #e8c547;
}