/* 
 * Meeting Room Reservation System - Core Design System 
 * Theme: White Base with Vibrant Red Accents
 */

:root {
    --primary-red: #dc3545;
    --primary-red-hover: #c82333;
    --primary-red-active: #bd2130;
    --primary-red-soft: rgba(220, 53, 69, 0.1);
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --border-color: #e9ecef;
    --card-shadow: 0 4px 6px -1px rgba(0,0,0,.05);
    --card-shadow-hover: 0 1.2rem 3rem rgba(220, 53, 69, 0.15);
}

/* Global Styles */
body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.min-vh-50 { min-height: 50vh; }
.object-fit-cover { object-fit: cover; }
.z-index-1 { z-index: 1; }
.text-red { color: var(--primary-red); }

/* Navigation */
.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,.05);
}
.navbar-brand {
    font-weight: 700;
    color: var(--primary-red) !important;
    font-size: 1.5rem;
}
.nav-link {
    font-weight: 500;
    color: #495057 !important;
    transition: color 0.3s ease;
}
.nav-link:hover, .nav-link.active {
    color: var(--primary-red) !important;
}

/* Buttons */
.btn-primary, .btn-danger {
    background-color: var(--primary-red);
    border-color: var(--primary-red);
}
.btn-primary:hover, .btn-danger:hover {
    background-color: var(--primary-red-hover);
    border-color: var(--primary-red-active);
}
.btn-outline-danger {
    color: var(--primary-red);
    border-color: var(--primary-red);
}
.btn-outline-danger:hover {
    background-color: var(--primary-red);
    color: var(--white);
}
.rounded-pill { border-radius: 50rem !important; }

/* Cards & Hover Effects */
.card {
    border: none;
    box-shadow: var(--card-shadow);
}
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover) !important;
}

/* Shine Animation */
.btn-hover-shine {
    position: relative;
    overflow: hidden;
}
.btn-hover-shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%);
    transform: skewX(-25deg);
    animation: shine 3s infinite;
}
@keyframes shine {
    0% { left: -100%; }
    20% { left: 200%; }
    100% { left: 200%; }
}

/* Login Page Utilities */
.input-group:focus-within {
    border-color: var(--primary-red) !important;
    background-color: var(--white) !important;
    box-shadow: 0 0 0 0.15rem rgba(220, 53, 69, 0.1);
}

/* FullCalendar Custom Theme Overrides */
:root {
    --fc-page-bg-color: #ffffff;
    --fc-neutral-bg-color: #f8f9fa;
    --fc-border-color: #e9ecef;
    --fc-button-text-color: #fff;
    --fc-button-bg-color: #dc3545;
    --fc-button-border-color: #dc3545;
    --fc-button-hover-bg-color: #c82333;
    --fc-button-hover-border-color: #bd2130;
    --fc-button-active-bg-color: #bd2130;
    --fc-button-active-border-color: #b21f2d;
    --fc-event-bg-color: #dc3545;
    --fc-event-border-color: #dc3545;
    --fc-today-bg-color: rgba(220, 53, 69, 0.05); 
}
.fc-toolbar-title { font-size: 1.25rem !important; font-weight: 700 !important; }
.fc .fc-button { padding: 0.25rem 0.75rem !important; font-size: 0.9rem !important; border-radius: 0.5rem; text-transform: capitalize; }
.fc-theme-standard .fc-scrollgrid { border-radius: 0.5rem; overflow: hidden; border: 1px solid var(--fc-border-color); }
.fc-event { color: #fff !important; font-size: 0.8rem; padding: 2px 4px; border-radius: 4px; }

/* FullCalendar Header Style Customization */
.fc-col-header-cell-cushion {
    text-decoration: none !important; /* 요일 밑줄 제거 */
    color: #212529 !important;      /* 월~금: 검정색 */
}

/* 일요일(Sun): 레드, 토요일(Sat): 블루 유지 */
.fc-day-sun .fc-col-header-cell-cushion {
    color: #dc3545 !important;
}
.fc-day-sat .fc-col-header-cell-cushion {
    color: #0d6efd !important;
}

/* Admin Dashboard */
.admin-navbar { background-color: #343a40; }
.admin-navbar .navbar-brand, .admin-navbar .nav-link { color: #fff !important; }
.focus-ring-danger:focus { box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25); border-color: #dc3545; }