/* ==========================================================================
   챌린지클럽 (Challenge Club) - Main Domain Temporary Page (임시 페이지)
   Aesthetic: Plan Page Crimson & Dark Slate High Contrast Design System
   ========================================================================== */

:root {
    --bg-dark: #0D0F12;
    --card-bg: #161920;
    --card-border: #2D3446;

    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    --brand-crimson: #EF4444;
    --brand-crimson-hover: #DC2626;
    --brand-crimson-bg: rgba(239, 68, 68, 0.12);
    --brand-crimson-border: rgba(239, 68, 68, 0.3);

    --brand-gold: #EAB308;
    --btn-dark-bg: #1F2430;
    --btn-dark-border: #2D3446;

    --font-primary: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Outfit', 'Pretendard', sans-serif;
}

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

html, body {
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
}

.landing-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
}

/* Dark Crimson Grid Background Pattern */
.grid-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: linear-gradient(rgba(239, 68, 68, 0.03) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(239, 68, 68, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 1;
}

/* Centered Temporary Landing Card */
.splash-card-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 520px;
    padding: 20px;
}

.splash-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 44px 36px 32px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Top Icon Badge */
.top-icon-badge {
    width: 64px;
    height: 64px;
    background: var(--brand-crimson-bg);
    border: 1px solid var(--brand-crimson-border);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--brand-crimson);
    margin-bottom: 24px;
}

/* Brand Title & Slogan */
.brand-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.brand-kr {
    color: var(--brand-crimson);
    margin-left: 4px;
}

.brand-slogan {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Status Pill Tag */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--brand-crimson-bg);
    border: 1px solid var(--brand-crimson-border);
    color: var(--brand-crimson);
    padding: 8px 18px;
    border-radius: 9999px;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 28px;
}

/* Main Headline */
.main-headline {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 14px;
}

/* Sub Description */
.sub-description {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Action Button Group */
.action-btn-group {
    display: flex;
    gap: 12px;
    width: 100%;
    justify-content: center;
    margin-bottom: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 800;
    border-radius: 12px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
}

.btn:active {
    transform: scale(0.98);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: 8px;
}

.btn-plan {
    flex: 1;
    background: var(--brand-crimson);
    color: #FFFFFF;
    font-weight: 800;
}

.btn-plan:hover {
    background: var(--brand-crimson-hover);
}

.btn-db {
    flex: 1;
    background: var(--btn-dark-bg);
    border: 1px solid var(--btn-dark-border);
    color: var(--text-primary);
}

.btn-db:hover {
    background: #283040;
    border-color: #3B475E;
}

/* Footer Caption & Version Badge */
.footer-caption {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.version-tag {
    margin-top: 14px;
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--brand-gold);
    background: rgba(234, 179, 8, 0.12);
    border: 1px solid rgba(234, 179, 8, 0.35);
    padding: 2px 14px;
    border-radius: 9999px;
    display: inline-block;
}

/* Git Key Setting Box */
.git-key-setting-box {
    background: #0D0F12;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.git-key-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-secondary);
}

.git-key-input-group {
    display: flex;
    gap: 8px;
}

.git-key-input-group input {
    flex: 1;
    background: #07090C;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 6px 12px;
    color: white;
    font-family: monospace;
    font-size: 0.85rem;
    outline: none;
}

.git-key-input-group input:focus {
    border-color: var(--brand-crimson);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(13, 15, 18, 0.92);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    width: 90%;
    max-width: 540px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.7);
}

.modal-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #0D0F12;
}

.modal-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
}

.btn-close:hover {
    color: var(--brand-crimson);
}

.modal-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.diag-status-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #0D0F12;
    border: 1px solid var(--card-border);
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.diag-log-box {
    background: #07090C;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 10px 14px;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--brand-gold);
    max-height: 120px;
    overflow-y: auto;
}

.text-crimson { color: var(--brand-crimson); }
.text-gold { color: var(--brand-gold); }
.margin-top-xs { margin-top: 10px; }

/* Responsive adjustments */
@media (max-width: 540px) {
    .splash-card { padding: 32px 20px 24px; }
    .main-headline { font-size: 1.45rem; }
    .action-btn-group, .git-key-input-group { flex-direction: column; }
}