/* =========================================================
   WEBGIS PROJECT FINAL — Design System (main.css)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Colors - Clean Light Theme */
    --primary:        #2563EB; /* Professional Blue */
    --primary-light:  #3B82F6;
    --primary-dark:   #1D4ED8;
    --accent:         #10B981;
    --danger:         #EF4444;
    --warning:        #F59E0B;
    --info:           #0EA5E9;

    /* Backgrounds */
    --bg-base:        #F9FAFB; /* Very light gray */
    --bg-surface:     #FFFFFF; /* Pure white */
    --bg-elevated:    #FFFFFF;
    --bg-card:        #FFFFFF;

    /* Borders */
    --border-light:   #E5E7EB;
    --border-hover:   #D1D5DB;

    /* Text */
    --text-primary:   #111827; /* Near black */
    --text-secondary: #4B5563; /* Dark gray */
    --text-muted:     #6B7280; /* Medium gray */

    /* Sidebar */
    --sidebar-w:      260px;
    --sidebar-bg:     #FFFFFF;
    --sidebar-border: #E5E7EB;

    /* Misc */
    --radius-sm:  4px;
    --radius-md:  8px;
    --radius-lg:  12px;
    --radius-xl:  16px;
    --shadow-sm:  0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md:  0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg:  0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.2s ease-in-out;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-base);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px; border-radius: var(--radius-md); border: 1px solid transparent;
    font-size: 0.85rem; font-weight: 500; font-family: 'Inter', sans-serif;
    cursor: pointer; transition: var(--transition); white-space: nowrap;
    outline: none;
}
.btn-primary   { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success   { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-success:hover { filter: brightness(0.95); }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(0.95); }
.btn-ghost     { background: transparent; border: 1px solid var(--border-light); color: var(--text-secondary); }
.btn-ghost:hover { background: #F3F4F6; color: var(--text-primary); border-color: var(--border-hover); }
.btn-sm        { padding: 6px 12px; font-size: 0.78rem; }
.btn-icon      { padding: 8px; border-radius: var(--radius-sm); }

/* ── Cards ── */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

/* ── Form Elements ── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.form-control {
    width: 100%; padding: 10px 14px; border-radius: var(--radius-md);
    background: #FFFFFF; border: 1px solid var(--border-light);
    color: var(--text-primary); font-size: 0.9rem; font-family: 'Inter', sans-serif;
    outline: none; transition: var(--transition); box-shadow: var(--shadow-sm);
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15); }
.form-control::placeholder { color: #9CA3AF; }
select.form-control { 
    appearance: none; 
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); 
    background-repeat: no-repeat; 
    background-position: right 12px center; 
    padding-right: 36px; 
}
textarea.form-control { resize: vertical; min-height: 80px; }

/* ── Badges ── */
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: var(--radius-xl); font-size: 0.75rem; font-weight: 600; }
.badge-primary { background: #EFF6FF; color: #1D4ED8; border: 1px solid #BFDBFE; }
.badge-success { background: #ECFDF5; color: #047857; border: 1px solid #A7F3D0; }
.badge-danger  { background: #FEF2F2; color: #B91C1C; border: 1px solid #FECACA; }
.badge-warning { background: #FFFBEB; color: #B45309; border: 1px solid #FDE68A; }
.badge-info    { background: #F0F9FF; color: #0369A1; border: 1px solid #BAE6FD; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border-light); background: var(--bg-surface); box-shadow: var(--shadow-sm); }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table thead th { background: #F9FAFB; padding: 14px 16px; text-align: left; font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; white-space: nowrap; border-bottom: 1px solid var(--border-light); }
.data-table tbody tr { border-bottom: 1px solid var(--border-light); transition: background 0.15s; }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: #F3F4F6; }
.data-table td { padding: 14px 16px; color: var(--text-primary); vertical-align: middle; }
.data-table .actions { display: flex; gap: 6px; }

/* ── Modal ── */
.modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 9999;
    background: rgba(17, 24, 39, 0.4); backdrop-filter: blur(2px);
    align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-surface); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); padding: 32px;
    width: 90%; max-width: 500px; max-height: 90vh; overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes modalIn { from { opacity: 0; transform: scale(0.95) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-title { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.4rem; padding: 4px; border-radius: var(--radius-sm); transition: all 0.15s; }
.modal-close:hover { background: #F3F4F6; color: var(--text-primary); }
.modal-footer { display: flex; gap: 12px; justify-content: flex-end; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border-light); }

/* ── Toast ── */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 99999; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 14px 20px; border-radius: var(--radius-md); font-size: 0.9rem; font-weight: 500; color: #fff; box-shadow: var(--shadow-md); animation: toastIn 0.3s ease; transition: opacity 0.3s; }
.toast.success { background: #10B981; }
.toast.error   { background: #EF4444; }
.toast.info    { background: #3B82F6; }
@keyframes toastIn { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

/* SPBU realtime snackbar */
.spbu-snackbar {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 99998;
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    width: min(360px, calc(100vw - 32px));
    padding: 13px 14px;
    color: var(--text-primary);
    background: #FFFFFF;
    border: 1px solid #A7F3D0;
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(18px);
    transition: opacity 0.25s ease, transform 0.25s ease;
}
.spbu-snackbar.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.spbu-snackbar-icon {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    color: #047857;
    background: #ECFDF5;
    border: 1px solid #A7F3D0;
    border-radius: var(--radius-md);
}
.spbu-snackbar-title {
    font-size: 0.84rem;
    font-weight: 800;
    line-height: 1.2;
}
.spbu-snackbar-meta {
    margin-top: 3px;
    color: var(--text-muted);
    font-size: 0.72rem;
    line-height: 1.3;
}
.spbu-snackbar-count {
    min-width: 44px;
    padding: 5px 8px;
    color: #047857;
    background: #ECFDF5;
    border: 1px solid #A7F3D0;
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 1.05rem;
    font-weight: 800;
}

/* ── Page header ── */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); letter-spacing: -0.02em; }
.page-header p  { color: var(--text-secondary); margin-top: 6px; font-size: 0.9rem; }
.page-header .breadcrumb { display: flex; gap: 8px; align-items: center; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 12px; }
.page-header .breadcrumb .sep { color: #D1D5DB; }

/* ── Utilities ── */
.text-muted    { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-success  { color: var(--accent); }
.text-danger   { color: var(--danger); }
.text-warning  { color: var(--warning); }
.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.gap-2         { gap: 8px; }
.gap-3         { gap: 12px; }
.mt-1          { margin-top: 8px; }
.mt-2          { margin-top: 16px; }
.mb-1          { margin-bottom: 8px; }
.mb-2          { margin-bottom: 16px; }
.w-full        { width: 100%; }