:root {
    --bg-color: #0f172a;
    --panel-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --warning: #f59e0b;
    --warning-hover: #d97706;
    --success: #10b981;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.dot {
    width: 6px;
    height: 6px;
    background-color: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }

    100% {
        opacity: 1;
    }
}

main {
    flex: 1;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 1.5rem;
    height: 100%;
    max-height: calc(100vh - 120px);
}

.panel {
    background-color: var(--panel-bg);
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.panel-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.2s;
}

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

/* Calls List */
.calls-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.call-card {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.call-card:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.call-card.active {
    border-color: var(--accent);
    background-color: rgba(59, 130, 246, 0.1);
}

.call-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.caller-id {
    font-weight: 600;
}

.active .caller-id {
    color: var(--accent);
}

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

.call-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

/* Control Panel */
.control-panel.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.selected-call-id {
    font-family: monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.controls-grid {
    display: grid;
    gap: 1.5rem;
}

.action-group {
    display: flex;
    gap: 0.75rem;
}

.control-group h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem;
    border-radius: 8px;
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    background-color: #334155;
    color: var(--text-primary);
}

.action-btn:hover {
    background-color: #475569;
}

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

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

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

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

.action-btn.warning {
    background-color: var(--warning);
}

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

.action-btn.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.action-btn.success:hover {
    background: linear-gradient(135deg, #059669, #047857);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Recording Controls */
.recording-controls {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.recording-controls button {
    flex: 1;
}

.recording-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    font-size: 14px;
}

.recording-indicator {
    color: #ef4444;
    font-weight: 600;
    animation: pulse-rec 1.5s ease-in-out infinite;
}

@keyframes pulse-rec {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.input-group {
    display: flex;
    gap: 0.5rem;
}

input {
    flex: 1;
    background-color: #0f172a;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--text-primary);
    font-family: inherit;
}

input:focus {
    outline: none;
    border-color: var(--accent);
}

.dtmf-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    max-width: 240px;
}

.dtmf-btn {
    aspect-ratio: 1;
    background-color: #334155;
    border: none;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.1s;
}

.dtmf-btn:hover {
    background-color: #475569;
}

.dtmf-btn:active {
    background-color: var(--accent);
    transform: scale(0.95);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background-color: #334155;
    border-left: 4px solid var(--accent);
    border-radius: 8px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: translateY(0);
    transition: transform 0.3s, opacity 0.3s;
    z-index: 100;
}

.toast.hidden {
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
}

.empty-state {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    color: var(--text-secondary);
    font-style: italic;
}

.recording-badge {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    font-size: 0.7rem;
    font-weight: bold;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 8px;
}

.recording-player {
    width: 100%;
    height: 30px;
    margin-top: 8px;
}

.recording-link {
    color: var(--success);
    font-size: 0.8rem;
    text-decoration: none;
    margin-top: 4px;
    display: inline-block;
}