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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255,255,255,0.03);
    --bg-card-hover: rgba(255,255,255,0.06);
    --bg-input: rgba(255,255,255,0.05);
    --border: rgba(255,255,255,0.06);
    --border-focus: rgba(99,102,241,0.5);
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99,102,241,0.3);
    --cyan: #22d3ee;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --text: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --sidebar-width: 250px;
    --header-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 200ms ease;
}

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

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

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

/* ─── LOGIN ─── */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 25%, #0a1628 50%, #0d1f1a 75%, #0a0a1a 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    padding: 20px;
}

@keyframes gradientShift {
    0%,100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(24px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px 40px;
    animation: fadeUp .6s ease;
}

.login-card .logo {
    text-align: center;
    margin-bottom: 36px;
}

.login-card .logo h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-card .logo p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.login-error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.2);
    color: var(--danger);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
}

/* ─── FORMS ─── */
.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    transition: all var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(255,255,255,0.07);
}

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 100px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* ─── BUTTONS ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-card-hover);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: rgba(255,255,255,0.1); }

.btn-danger {
    background: rgba(239,68,68,0.15);
    color: var(--danger);
    border: 1px solid rgba(239,68,68,0.2);
}
.btn-danger:hover { background: rgba(239,68,68,0.25); }

.btn-success {
    background: rgba(16,185,129,0.15);
    color: var(--success);
    border: 1px solid rgba(16,185,129,0.2);
}
.btn-success:hover { background: rgba(16,185,129,0.25); }

.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; pointer-events: none; }

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ─── LAYOUT ─── */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: rgba(255,255,255,0.02);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-logo h1 {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-logo span { font-size: 11px; color: var(--text-muted); }

.sidebar-nav { padding: 12px; flex: 1; display: flex; flex-direction: column; gap: 2px; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 450;
    transition: all var(--transition);
}

.sidebar-nav a:hover { color: var(--text); background: var(--bg-card-hover); }
.sidebar-nav a.active { color: var(--accent); background: rgba(99,102,241,0.1); }
.sidebar-nav a svg { width: 20px; height: 20px; flex-shrink: 0; opacity: .7; }
.sidebar-nav a.active svg { opacity: 1; }

.sidebar-nav .spacer { flex: 1; }

.sidebar-nav .nav-logout {
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: 8px;
    padding-top: 12px;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.page-header {
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: rgba(255,255,255,0.01);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.page-header h2 { font-size: 20px; font-weight: 600; }
.page-header p { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.page-header .actions { display: flex; gap: 10px; }

.page-body { padding: 32px; }

/* ─── CARDS ─── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(12px);
    overflow: hidden;
}

.card-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 22px; }
.card-footer { padding: 14px 22px; border-top: 1px solid var(--border); }

/* ─── STAT CARDS ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition);
}

.stat-card:hover { border-color: rgba(255,255,255,0.1); transform: translateY(-2px); }

.stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon.purple { background: rgba(99,102,241,0.15); color: var(--accent); }
.stat-icon.cyan { background: rgba(34,211,238,0.15); color: var(--cyan); }
.stat-icon.green { background: rgba(16,185,129,0.15); color: var(--success); }
.stat-icon.orange { background: rgba(245,158,11,0.15); color: var(--warning); }
.stat-icon svg { width: 22px; height: 22px; }

.stat-info h4 { font-size: 26px; font-weight: 700; line-height: 1.2; }
.stat-info p { font-size: 13px; color: var(--text-secondary); }

/* ─── TABLES ─── */
.table-wrapper { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

thead th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .5px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--bg-card-hover); }
tbody tr:last-child td { border-bottom: none; }

.table-actions { display: flex; gap: 6px; }

/* ─── BADGES ─── */
.badge {
    display: inline-flex;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-info { background: rgba(34,211,238,0.15); color: var(--cyan); }
.badge-default { background: var(--bg-card-hover); color: var(--text-secondary); }

/* ─── MODALS ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn .2s ease;
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    animation: fadeUp .3s ease;
}

.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1100px; }

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 17px; font-weight: 600; }

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    font-size: 18px;
}

.modal-close:hover { background: var(--bg-card-hover); color: var(--text); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ─── TOAST ─── */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    animation: slideIn .3s ease;
    min-width: 280px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid;
}

.toast-success { background: rgba(16,185,129,0.12); border-color: rgba(16,185,129,0.25); color: var(--success); }
.toast-error { background: rgba(239,68,68,0.12); border-color: rgba(239,68,68,0.25); color: var(--danger); }
.toast-info { background: rgba(99,102,241,0.12); border-color: rgba(99,102,241,0.25); color: var(--accent); }

/* ─── TABS ─── */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    padding: 0 4px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.tab-btn {
    padding: 10px 18px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── PROGRESS BAR ─── */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--cyan));
    border-radius: 4px;
    transition: width .5s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 1.5s infinite;
}

/* ─── DRAG & DROP ─── */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--accent);
    background: rgba(99,102,241,0.05);
}

.dropzone svg { width: 48px; height: 48px; color: var(--text-muted); margin-bottom: 12px; }
.dropzone p { color: var(--text-secondary); font-size: 14px; }
.dropzone .hint { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

/* ─── TEMPLATE EDITOR ─── */
.editor-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    min-height: 500px;
}

.editor-area {
    width: 100%;
    min-height: 400px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    padding: 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    resize: vertical;
}

.preview-frame {
    background: #fff;
    border-radius: var(--radius-sm);
    overflow: hidden;
    min-height: 400px;
}

.preview-frame iframe { width: 100%; height: 100%; min-height: 400px; border: none; }

.var-buttons { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.var-btn {
    padding: 4px 10px;
    font-size: 12px;
    border-radius: 6px;
    background: rgba(99,102,241,0.12);
    color: var(--accent);
    border: 1px solid rgba(99,102,241,0.2);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition);
}
.var-btn:hover { background: rgba(99,102,241,0.2); }

/* ─── WIZARD / STEPS ─── */
.steps { display: flex; margin-bottom: 32px; position: relative; }
.step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}
.step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    transition: all var(--transition);
}
.step.active .step-circle { border-color: var(--accent); color: var(--accent); background: rgba(99,102,241,0.1); }
.step.completed .step-circle { border-color: var(--success); color: #fff; background: var(--success); }
.step-label { font-size: 12px; color: var(--text-muted); }
.step.active .step-label { color: var(--text); }

/* ─── EMPTY STATE ─── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.empty-state svg { width: 56px; height: 56px; margin-bottom: 16px; opacity: .4; }
.empty-state h4 { font-size: 16px; margin-bottom: 6px; color: var(--text-secondary); }
.empty-state p { font-size: 14px; margin-bottom: 20px; }

/* ─── CAMPAIGN LOG ─── */
.log-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}
.log-item:last-child { border: none; }

/* ─── PAGINATION ─── */
.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 20px; }
.pagination button {
    padding: 6px 12px;
    border-radius: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    transition: all var(--transition);
}
.pagination button:hover { background: var(--bg-card-hover); }
.pagination button.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ─── UTILITY ─── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.hidden { display: none !important; }

/* ─── ANIMATIONS ─── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: translateX(0); } }
@keyframes shimmer { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
@keyframes spin { to { transform: rotate(360deg); } }

.spinner {
    width: 20px; height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .6s linear infinite;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); transition: transform .3s ease; }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .page-body { padding: 20px; }
    .editor-layout { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
}