/* ============================================================
   SHIVTIRTH HOSTEL — GLOBAL DESIGN SYSTEM
   ============================================================
   This file defines ALL custom styling for the application.
   Uses Google Font "Inter" for a clean, modern look.
   
   SECTIONS:
     1. CSS Variables (color tokens, spacing)
     2. Typography & Base
     3. Navbar
     4. Cards & Panels
     5. Buttons
     6. Forms
     7. Tables
     8. Badges / Status
     9. Alerts
    10. Footer
    11. Animations
    12. Utility Classes
    13. Responsive
   ============================================================ */

/* ===== 1. CSS VARIABLES (Design Tokens) ===== */
:root {
    /* Primary Palette */
    --primary:       #4361ee;
    --primary-dark:  #3a0ca3;
    --primary-light: #7b8ff7;
    
    /* Accent */
    --accent:        #f72585;
    --accent-light:  #ff6bac;
    
    /* Neutral */
    --dark:          #1a1a2e;
    --dark-2:        #16213e;
    --gray-900:      #212529;
    --gray-700:      #495057;
    --gray-500:      #6c757d;
    --gray-300:      #dee2e6;
    --gray-100:      #f8f9fa;
    --bg:            #f0f2f5;
    --white:         #ffffff;
    
    /* Status Colors */
    --success:       #06d6a0;
    --warning:       #ffd166;
    --danger:        #ef476f;
    --info:          #118ab2;
    
    /* Spacing */
    --radius:        12px;
    --radius-lg:     16px;
    --radius-sm:     8px;
    --shadow:        0 2px 16px rgba(0,0,0,0.08);
    --shadow-lg:     0 8px 32px rgba(0,0,0,0.12);
    --shadow-hover:  0 8px 24px rgba(67,97,238,0.15);
    
    /* Transitions */
    --ease:          cubic-bezier(0.4, 0, 0.2, 1);
    --transition:    all 0.3s var(--ease);
}


/* ===== 2. TYPOGRAPHY & BASE ===== */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--gray-900);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--dark);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--primary-dark);
}

/* Selection color */
::selection {
    background: var(--primary);
    color: var(--white);
}


/* ===== 3. NAVBAR ===== */
.st-navbar {
    background: var(--dark) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
    padding: 0.6rem 0;
}

.st-navbar .navbar-brand {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.st-navbar .navbar-brand svg {
    width: 28px;
    height: 28px;
}

.st-navbar .btn {
    font-size: 0.82rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.9rem;
    transition: var(--transition);
}

.st-navbar .btn:hover {
    transform: translateY(-1px);
}

.st-navbar .st-user-name {
    font-size: 0.85rem;
    opacity: 0.85;
}


/* ===== 4. CARDS & PANELS ===== */
.st-card {
    background: var(--white);
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

.st-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.st-card .card-title {
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.st-card .card-title svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
    flex-shrink: 0;
}

/* Stat Cards (numbers on homepage / admin dashboard) */
.st-stat-card {
    text-align: center;
    padding: 1.25rem;
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.st-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.st-stat-card .st-stat-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.st-stat-card .st-stat-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-500);
    margin-top: 4px;
}

/* Glass card (for login/register) */
.st-glass-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}


/* ===== 5. BUTTONS ===== */
.st-btn {
    font-weight: 600;
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1.2rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: none;
    cursor: pointer;
}

.st-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.st-btn:active {
    transform: translateY(0);
}

.st-btn-primary {
    background: var(--primary);
    color: var(--white);
}
.st-btn-primary:hover {
    background: var(--primary-dark);
    color: var(--white);
}

.st-btn-success {
    background: var(--success);
    color: var(--dark);
}

.st-btn-danger {
    background: var(--danger);
    color: var(--white);
}

.st-btn-outline {
    background: transparent;
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
}
.st-btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(67, 97, 238, 0.05);
}

/* Icon only button */
.st-btn-icon {
    width: 34px;
    height: 34px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--gray-700);
    transition: var(--transition);
}

.st-btn-icon:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(67, 97, 238, 0.05);
}


/* ===== 6. FORMS ===== */
.st-form-control {
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.85rem;
    font-size: 0.9rem;
    transition: var(--transition);
    background: var(--white);
}

.st-form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
    outline: none;
}

.st-form-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-700);
    margin-bottom: 4px;
}


/* ===== 7. TABLES ===== */
.st-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.st-table thead {
    background: var(--dark);
    color: var(--white);
}

.st-table thead th {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
    padding: 0.75rem 1rem;
    border: none;
}

.st-table thead th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}
.st-table thead th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
}

.st-table tbody td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--gray-300);
    font-size: 0.88rem;
    vertical-align: middle;
}

.st-table tbody tr {
    transition: var(--transition);
}

.st-table tbody tr:hover {
    background: rgba(67, 97, 238, 0.04);
}


/* ===== 8. BADGES / STATUS ===== */
.st-badge {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.3rem 0.7rem;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.st-badge-pending {
    background: rgba(255, 209, 102, 0.2);
    color: #b8860b;
}

.st-badge-approved {
    background: rgba(6, 214, 160, 0.15);
    color: #05a17c;
}

.st-badge-rejected {
    background: rgba(239, 71, 111, 0.15);
    color: #d32f2f;
}

.st-badge-vacated {
    background: rgba(108, 117, 125, 0.15);
    color: var(--gray-700);
}

.st-badge-info {
    background: rgba(17, 138, 178, 0.15);
    color: var(--info);
}


/* ===== 9. ALERTS ===== */
.st-alert {
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
}

.st-alert-notice {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.08), rgba(123, 143, 247, 0.08));
    border-left: 4px solid var(--primary);
    color: var(--dark);
}


/* ===== 10. FOOTER ===== */
.st-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 2rem 0;
}

.st-footer a {
    color: rgba(255, 255, 255, 0.7);
}
.st-footer a:hover {
    color: var(--white);
}

.st-footer .st-footer-brand {
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--white);
}

.st-footer .st-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.st-footer .st-footer-links li {
    margin-bottom: 6px;
}
.st-footer .st-footer-links a {
    font-size: 0.85rem;
}
.st-footer .st-footer-divider {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    margin-top: 1.5rem;
}


/* ===== 11. ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

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

.st-animate-in {
    animation: fadeInUp 0.5s var(--ease) both;
}

.st-animate-delay-1 { animation-delay: 0.1s; }
.st-animate-delay-2 { animation-delay: 0.2s; }
.st-animate-delay-3 { animation-delay: 0.3s; }
.st-animate-delay-4 { animation-delay: 0.4s; }

/* Page content fade in */
main {
    animation: fadeIn 0.4s var(--ease) both;
}

/* Alert slide down */
.alert {
    animation: slideDown 0.3s var(--ease) both;
}


/* ===== 12. HERO SECTION ===== */
.st-hero {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 40%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.st-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(67, 97, 238, 0.15), transparent 70%);
}

.st-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(247, 37, 133, 0.1), transparent 70%);
}

.st-hero-content {
    position: relative;
    z-index: 1;
}


/* ===== 13. PROGRESS TRACKER ===== */
.st-progress-tracker {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

.st-progress-step {
    text-align: center;
    flex: 1;
    position: relative;
}

.st-progress-step .st-step-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    transition: var(--transition);
}

.st-progress-step .st-step-icon svg {
    width: 22px;
    height: 22px;
}

.st-step-done .st-step-icon {
    background: var(--success);
    color: var(--white);
}

.st-step-active .st-step-icon {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.2);
}

.st-step-pending .st-step-icon {
    background: var(--gray-300);
    color: var(--gray-500);
}

.st-step-failed .st-step-icon {
    background: var(--danger);
    color: var(--white);
}

.st-progress-step .st-step-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.st-progress-connector {
    flex: 0.5;
    height: 3px;
    background: var(--gray-300);
    border-radius: 2px;
    margin: 0 -10px;
    align-self: flex-start;
    margin-top: 24px;
}

.st-progress-connector.done {
    background: var(--success);
}


/* ===== 14. TAB STYLING ===== */
.st-tabs .nav-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-500);
    border: none;
    border-bottom: 3px solid transparent;
    padding: 0.7rem 1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.st-tabs .nav-link:hover {
    color: var(--primary);
    border-bottom-color: rgba(67, 97, 238, 0.3);
}

.st-tabs .nav-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: transparent;
}

.st-tabs .nav-link svg {
    width: 16px;
    height: 16px;
}


/* ===== 15. PROFILE HEADER ===== */
.st-profile-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    padding: 1rem 0;
}

.st-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
}

.st-avatar-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}


/* ===== 16. RESPONSIVE ===== */
@media (max-width: 768px) {
    .st-hero h1 {
        font-size: 1.8rem;
    }
    
    .st-stat-card .st-stat-value {
        font-size: 1.5rem;
    }
    
    .st-progress-tracker {
        gap: 4px;
    }
    
    .st-progress-step .st-step-icon {
        width: 36px;
        height: 36px;
    }
    
    .st-progress-step .st-step-label {
        font-size: 0.65rem;
    }
    
    .st-tabs .nav-link {
        font-size: 0.78rem;
        padding: 0.5rem 0.6rem;
    }
}


/* ===== 17. FLOOR PLAN / MAP ===== */
.st-map-container {
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}

.st-map-container iframe {
    border-radius: var(--radius);
}

/* Floating label overlay on top of the map */
.st-map-label-overlay {
    position: absolute;
    top: 45%;
    left: 40%;
    transform: translate(-50%, -100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
    pointer-events: auto;
}

.st-map-pin {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
    animation: pinBounce 2s ease-in-out infinite;
}

@keyframes pinBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.st-map-label-box {
    background: #fff;
    border-radius: 8px;
    padding: 6px 14px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
    text-align: center;
    margin-top: -4px;
    font-family: 'Inter', sans-serif;
}

.st-map-label-box strong {
    display: block;
    font-size: 0.85rem;
    color: #1a1a2e;
}

.st-map-label-sub {
    display: block;
    font-size: 0.68rem;
    color: var(--primary);
    font-weight: 600;
}

/* Directions button on map */
.st-map-directions-btn {
    position: absolute;
    bottom: 14px;
    left: 14px;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: #4285f4;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
    border-radius: 8px;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    transition: var(--transition);
}

.st-map-directions-btn:hover {
    background: #1a73e8;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.35);
}

/* Floor plan panel highlight animation */
.st-map-highlight {
    animation: mapHighlight 0.5s ease-out;
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.4) !important;
}
@keyframes mapHighlight {
    0% { box-shadow: 0 0 0 0 rgba(67, 97, 238, 0.6); }
    100% { box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.4); }
}

/* Room detail card */
.st-room-detail-card {
    margin-top: 12px;
    padding: 14px;
    border-radius: var(--radius);
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    animation: slideDown 0.3s var(--ease) both;
}

.st-room-detail-stat {
    padding: 6px;
    border-radius: var(--radius-sm);
    background: var(--white);
}

.st-room-detail-value {
    font-size: 1rem;
    font-weight: 800;
    color: var(--dark);
}

.st-room-detail-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
}

/* Legend dots */
.st-legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 4px;
    vertical-align: middle;
}

/* Floor plan SVG wrapper */
.st-floor-plan-svg-wrap {
    min-height: 200px;
}

/* SVG floor room hover */
.st-floor-room:hover rect {
    filter: brightness(0.92);
    stroke-width: 3;
}

/* Responsive - Map */
@media (max-width: 992px) {
    .st-map-container {
        margin-bottom: 1rem;
    }
    .st-map-label-overlay {
        top: 25%;
        left: 30%;
    }
}