:root {
    /* Base Spacing & Geometry */
    --border-radius-lg: 12px;
    --border-radius-md: 8px;
    --border-radius-sm: 6px;
    --transition-speed: 0.3s;
    --danger-color: #EF4444;
}

/* Default State (Login) */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    background-color: #4A0E0E; /* Default to Oxblood */
    color: #C1D1C2;
    margin: 0;
}

/* LOGIN THEME (Applied to body or container) */
.login-container {
    --bg-main: #4A0E0E;
    --card-bg: #5A1A1A;
    --text-primary: #C1D1C2;
    --primary-color: #606C38;
    --border-color: rgba(193, 209, 194, 0.1);
}

/* DASHBOARD THEME (Applied to body when logged in) */
body.dashboard-theme {
    background-color: #A9B3A1 !important; /* Force Smoky Green */
    color: #4A0E0E !important;
}

.dashboard-layout {
    --bg-main: #A9B3A1;
    --text-primary: #4A0E0E;
    --text-secondary: #6A1A1A;
    --primary-color: #4A0E0E;
    --card-bg: rgba(255, 255, 255, 0.3);
    --sidebar-bg: #4A0E0E;
    --sidebar-text: #C1D1C2;
    --border-color: rgba(74, 14, 14, 0.1);
}

/* Typography Overrides */
.dashboard-layout h1, .dashboard-layout h2, .dashboard-layout h3, .dashboard-layout h4 {
    color: var(--text-primary);
}

/* --- SIDEBAR NAVIGATION --- */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    padding: 2rem 0;
    z-index: 10;
    box-shadow: 2px 0 10px rgba(0,0,0,0.2);
}

.sidebar-brand h2 {
    color: #FFFFFF;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-item {
    padding: 0.875rem 2rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-speed);
    border-left: 3px solid transparent;
}

.nav-item:hover, .nav-item.active {
    background: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    border-left-color: var(--text-primary);
    opacity: 1;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    opacity: 1;
}

.nav-item.active {
    background: var(--sidebar-hover);
    color: #FFFFFF;
    border-left-color: var(--primary-color);
    opacity: 1;
    font-weight: 600;
}

.nav-item[style*="color: var(--danger-color)"] {
    color: #F87171 !important; /* Lighter red for dark sidebar */
}

/* --- MAIN CONTENT --- */
.main-content-wrapper {
    flex: 1;
    padding: 2.5rem 3.5rem;
    overflow-y: auto;
    height: 100vh;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.header-content h1 {
    font-size: 1.875rem;
    margin-bottom: 0.25rem;
}

.header-content p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

/* --- BUTTONS --- */
.btn {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

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

.secondary-btn {
    background-color: #FFFFFF;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.secondary-btn:hover {
    background-color: #F1F5F9;
    border-color: #CBD5E1;
}

.ghost-btn {
    background-color: transparent;
    color: var(--text-secondary);
}

.ghost-btn:hover {
    color: var(--text-primary);
    background-color: rgba(0, 0, 0, 0.04);
}

/* --- SEARCH SECTION --- */
.search-bar-container {
    display: flex;
    gap: 0.75rem;
    background: var(--card-bg);
    padding: 0.75rem;
    border-radius: var(--border-radius-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.search-bar-container input {
    flex: 1;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-primary);
    background-color: transparent;
    outline: none;
    transition: all var(--transition-speed);
}

.search-bar-container input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}

/* --- GRID SYSTEM --- */
.vendor-grid, .project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.5rem;
}

/* --- ENTERPRISE CARDS --- */
.vendor-card, .project-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
}

.vendor-card:hover, .project-card:hover {
    box-shadow: var(--card-hover-shadow);
    border-color: #CBD5E1;
}

.vendor-header, .project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.vendor-title, .project-title {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.vendor-location {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* --- TAGS & BADGES --- */
.tag-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: rgba(74, 14, 14, 0.1);
    color: var(--text-primary);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(74, 14, 14, 0.1);
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.status-badge.planning { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }
.status-badge.in-progress { background: #DBEAFE; color: #1E40AF; border: 1px solid #BFDBFE; }
.status-badge.completed { background: #DCFCE7; color: #166534; border: 1px solid #BBF7D0; }

/* --- PROJECT SPECIFICS --- */
.project-detail {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
}

.project-detail strong {
    color: var(--text-primary);
    font-weight: 500;
}

.progress-container {
    margin: 1.25rem 0;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #E2E8F0;
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.5s ease;
}
.progress-fill.warning { background: #F59E0B; }
.progress-fill.danger { background: #EF4444; }

.whatsapp-btn {
    background-color: #F0FDF4;
    color: #16A34A;
    border: 1px solid #BBF7D0;
    padding: 0.4rem 0.75rem;
    font-size: 0.75rem;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    transition: all 0.2s;
}

.whatsapp-btn:hover {
    background-color: #DCFCE7;
    color: #15803D;
}

/* --- CATALOG SECTION --- */
.catalog-section {
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.catalog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.catalog-header h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
}

.add-catalog-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.8125rem;
}

.add-catalog-btn:hover {
    text-decoration: underline;
}

.catalog-list {
    list-style: none;
}

.catalog-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #F1F5F9;
    font-size: 0.875rem;
}

.catalog-item:last-child {
    border-bottom: none;
}

.catalog-item-name {
    color: var(--text-primary);
}

.catalog-item-price {
    color: var(--text-secondary);
    font-weight: 500;
}

/* --- TABLES --- */
.table-container {
    background: var(--card-bg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    overflow: hidden;
    margin-top: 1rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th, .data-table td {
    padding: 0.875rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.data-table th {
    background: #F8FAFC;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
}

.data-table tbody tr:hover {
    background: #F8FAFC;
}

.data-table .action-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.data-table .action-links a:hover {
    text-decoration: underline;
}

/* --- MODALS --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity var(--transition-speed);
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    transform: translateY(0) scale(1);
    transition: transform var(--transition-speed);
}

.modal-large {
    max-width: 800px;
}

.modal.hidden .modal-content {
    transform: translateY(10px) scale(0.98);
}

.close-btn {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    line-height: 1;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.2s;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(193, 209, 194, 0.1);
    background: rgba(255, 255, 255, 0.1);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1.5rem;
}

.full-width {
    grid-column: 1 / -1;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* --- AUTH PORTAL --- */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    width: 100%;
    background-color: var(--bg-main);
    background-image: radial-gradient(#CBD5E1 1px, transparent 1px);
    background-size: 20px 20px;
}

.login-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 10px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-header h2 {
    color: var(--text-primary);
    font-size: 1.875rem;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.login-error {
    color: var(--danger-color);
    background: #FEF2F2;
    padding: 0.75rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    text-align: center;
    border: 1px solid #FECACA;
    font-weight: 500;
}

/* --- PHOTO GALLERY --- */
.photo-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.photo-thumbnail {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.photo-thumbnail:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
}

/* Utility */
.hidden {
    display: none !important;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-light);
    font-size: 1rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-md);
    border: 1px dashed var(--border-color);
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* --- MOBILE RESPONSIVENESS --- */
.hidden-desktop {
    display: none;
}

@media (max-width: 1024px) {
    .main-content-wrapper {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .dashboard-layout {
        flex-direction: column;
    }

    /* Sidebar transforms into off-canvas menu */
    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        height: 100vh;
        width: 280px;
        transition: left 0.3s ease;
        box-shadow: 4px 0 20px rgba(0,0,0,0.2);
    }

    .sidebar.mobile-open {
        left: 0;
    }

    .hidden-desktop {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 2rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--border-color);
    }
    
    .hidden-desktop h2 {
        font-size: 1.25rem;
        color: var(--primary-color);
    }

    .main-content-wrapper {
        padding: 1.5rem;
        height: auto;
        overflow-y: visible;
    }

    .view-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    /* Grids & Cards */
    .vendor-grid, .project-grid {
        grid-template-columns: 1fr;
    }

    .search-bar-container {
        flex-direction: column;
    }

    .search-bar-container .btn {
        width: 100%;
    }

    /* Modals & Forms */
    .form-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 1.5rem;
        margin: 1rem;
        max-height: 85vh;
    }

    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* --- ENHANCED VENDOR CRM STYLES --- */
.vendor-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.info-item .label {
    font-weight: 600;
    opacity: 0.7;
    margin-right: 4px;
}

.vendor-actions-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.contact-btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--border-color);
}

.catalog-list {
    list-style: none;
    margin-top: 0.5rem;
}

.catalog-list li {
    background: rgba(255,255,255,0.2);
    padding: 0.75rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 0.5rem;
}

.catalog-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.catalog-item-header a {
    font-weight: 500;
    text-decoration: none;
    color: var(--text-primary);
}

.catalog-date {
    font-size: 0.7rem;
    opacity: 0.6;
}

.pdf-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.pdf-tag {
    font-size: 0.65rem;
    background: rgba(74, 14, 14, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--text-primary);
    border: 1px solid rgba(74, 14, 14, 0.05);
}