:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
    color: var(--text-primary);
    background: var(--bg-light);
}

@supports (padding-top: env(safe-area-inset-top)) {
    .safe-area-top { padding-top: env(safe-area-inset-top); }
    .safe-area-bottom { padding-bottom: env(safe-area-inset-bottom); }
}

.btn-primary {
    background: var(--gradient);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-secondary {
    background: white;
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
}
.btn-secondary:hover { background: var(--bg-light); }

.btn-danger {
    background: var(--danger);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.card {
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    overflow: hidden;
}

.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
    background: white;
}
.input-field:focus { border-color: var(--primary); outline: none; }

select.input-field { appearance: none; cursor: pointer; }

.notification {
    position: fixed;
    top: 20px;
    left: 20px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    z-index: 1100;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
    animation: toastSlideIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
}
.notification.success { background: linear-gradient(135deg, rgba(16, 185, 129, 0.85), rgba(5, 150, 105, 0.8)); color: white; }
.notification.error { background: linear-gradient(135deg, rgba(239, 68, 68, 0.85), rgba(220, 38, 38, 0.8)); color: white; }
.notification.info { background: linear-gradient(135deg, rgba(99, 102, 241, 0.85), rgba(79, 70, 229, 0.8)); color: white; }
.notification.slide-out { animation: toastSlideOut 0.3s ease-in forwards; }

@keyframes toastSlideIn {
    0% { transform: translateX(100%) scale(0.9); opacity: 0; }
    60% { transform: translateX(-10px) scale(1.02); opacity: 0.8; }
    100% { transform: translateX(0) scale(1); opacity: 1; }
}
@keyframes toastSlideOut {
    0% { transform: translateX(0) scale(1); opacity: 1; }
    100% { transform: translateX(100%) scale(0.9); opacity: 0; }
}

.nav-item { transition: all 0.3s ease; }
.nav-item:hover { transform: translateY(-2px); }
.nav-item.active { color: var(--primary); background-color: rgba(99, 102, 241, 0.1); }

.spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.4s ease-out forwards; }
.stagger-item { opacity: 0; animation: fadeInUp 0.4s ease-out forwards; }
.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }

#loading-screen {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: var(--gradient);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
#loading-screen .logo {
    margin-bottom: 1.5rem;
    animation: splashFloat 2s ease-in-out infinite;
}
#loading-screen .logo img {
    width: 180px;
    filter: drop-shadow(0 4px 20px rgba(0,0,0,0.3));
}
#loading-screen .loading-spinner {
    width: 3rem; height: 3rem;
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes splashFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.line-card {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 0.5rem;
}
.line-card:hover { border-color: var(--primary-light); background: rgba(99, 102, 241, 0.03); }
.line-card.active { border-color: var(--primary); background: rgba(99, 102, 241, 0.06); }

.stat-card {
    background: white;
    border-radius: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--border);
    text-align: center;
}
.stat-value { font-size: 1.75rem; font-weight: 800; color: var(--text-primary); }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.25rem; font-weight: 500; }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #ede9fe; color: #5b21b6; }
.badge-gray { background: #f1f5f9; color: #475569; }

.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease-out;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 1.25rem;
    max-width: 480px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    animation: modalSlideUp 0.3s ease-out;
}
@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.type-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.6rem;
    border-radius: 0.375rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.type-forward { background: #dbeafe; color: #1e40af; }
.type-ivr { background: #fce7f3; color: #9d174d; }
.type-voice_ai { background: #ede9fe; color: #5b21b6; }
.type-voicemail { background: #d1fae5; color: #065f46; }

.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    background: #d1d5db;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.3s;
}
.toggle.active { background: var(--primary); }
.toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle.active::after { transform: translateX(20px); }

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
    text-align: center;
}

.tab-bar {
    display: flex;
    background: #f1f5f9;
    border-radius: 0.75rem;
    padding: 0.25rem;
    gap: 0.25rem;
}
.tab-item {
    flex: 1;
    padding: 0.5rem 0.75rem;
    text-align: center;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}
.tab-item.active {
    background: white;
    color: var(--primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}