:root {
    --bg-base: #09090b;
    --bg-glass: rgba(24, 24, 27, 0.65);
    --bg-card: rgba(39, 39, 42, 0.4);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);

    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;

    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.2);

    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-glow: rgba(239, 68, 68, 0.2);
    --success: #10b981;

    --radius-xl: 24px;
    --radius-lg: 16px;
    --radius-md: 10px;

    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 24px;
    position: relative;
    overflow-x: hidden;
}

.backdrop-gradient {
    position: fixed;
    top: -10%;
    left: 20%;
    width: 60%;
    height: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    filter: blur(120px);
    z-index: 0;
    pointer-events: none;
}

.app-layout {
    display: flex;
    width: 100%;
    max-width: 1200px;
    gap: 24px;
    align-items: stretch;
    position: relative;
    z-index: 1;
}

.sidebar {
    width: 320px;
    flex-shrink: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-glass);
    padding: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    height: calc(100vh - 48px);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-glass);
}

.sidebar-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

.accent-icon {
    color: var(--accent);
}

.history-list {
    list-style: none;
    overflow-y: auto;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 4px;
}

.history-item {
    background: var(--bg-card);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    padding: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.history-item:hover {
    border-color: var(--border-hover);
    background: rgba(63, 63, 70, 0.6);
}

.history-item .delete-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.history-item:hover .delete-btn {
    opacity: 1;
}

.history-item .delete-btn:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.history-item.empty {
    text-align: center;
    color: var(--text-secondary);
    cursor: default;
    background: transparent;
    border: none;
}

.history-date {
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 6px;
    font-weight: 500;
}

.history-preview {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    line-clamp: 3;
    overflow: hidden;
    white-space: pre-wrap;
}

.container {
    flex-grow: 1;
    width: 100%;
    max-width: 860px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-glass);
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    height: calc(100vh - 48px);
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    margin-bottom: 32px;
}

.header-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

.header-logo h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.header-logo h1 span {
    color: var(--accent);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 400;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.status-container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-glass);
}

.indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-secondary);
    transition: background-color 0.3s ease;
}

.indicator.ready {
    background-color: var(--success);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.indicator.recording {
    background-color: var(--danger);
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
    animation: pulse 1.5s infinite;
}

.indicator.processing {
    background-color: var(--accent);
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
    animation: pulse 1s infinite alternate;
}

.indicator.error {
    background-color: #f59e0b;
}

@keyframes pulse {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.transcription-container {
    margin-bottom: 28px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 0;
}

.title-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--border-glass);
    padding: 8px 4px;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.title-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.text-output {
    width: 100%;
    flex-grow: 1;
    min-height: 200px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 24px;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-primary);
    overflow-y: auto;
    overflow-x: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.text-output:empty:before {
    content: attr(placeholder);
    color: var(--text-secondary);
}

.text-output:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.controls {
    display: flex;
    gap: 16px;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.action-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    color: var(--text-primary);
}

.btn:active {
    transform: scale(0.96);
}

.btn.primary {
    background: var(--accent);
    color: white;
    padding: 12px 32px;
    box-shadow: 0 4px 14px 0 var(--accent-glow);
}

.btn.primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 6px 20px 0 var(--accent-glow);
}

.btn.primary.recording-state {
    background: var(--danger);
    box-shadow: 0 4px 14px 0 var(--danger-glow);
}

.btn.primary.recording-state:hover {
    background: var(--danger-hover);
    box-shadow: 0 6px 20px 0 var(--danger-glow);
}

.btn.success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.2);
}

.btn.success:hover {
    background: #059669;
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.3);
}

.btn.secondary {
    background: var(--bg-card);
    border-color: var(--border-glass);
}

.btn.secondary:hover {
    background: rgba(63, 63, 70, 0.6);
    border-color: var(--border-hover);
}

.icon {
    display: inline-flex;
}

footer {
    text-align: center;
    margin-top: 36px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

@media (max-width: 960px) {
    body {
        align-items: flex-start;
        height: auto;
    }

    .app-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 250px;
    }

    .container {
        height: 600px;
    }
}