/* ============================================
   NEXUS AVATAR - Professional CSS
   Distinctive sci-fi HUD aesthetic
   ============================================ */

/* Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Rajdhani:wght@300;400;500;600;700&display=swap');

/* CSS Variables */
:root {
    /* Color Scheme: Cyberpunk Blue/Cyan */
    --primary: #00e5ff;
    --primary-dark: #00b8d4;
    --secondary: #7c4dff;
    --accent-green: #00ff88;
    --accent-orange: #ff9100;
    --accent-purple: #b388ff;

    /* Glass/UI Colors */
    --glass-bg: rgba(15, 25, 35, 0.75);
    --glass-border: rgba(0, 229, 255, 0.3);
    --glass-highlight: rgba(255, 255, 255, 0.1);

    /* Text Colors */
    --text-primary: #e0f7fa;
    --text-secondary: #80deea;
    --text-muted: #4dd0e1;

    /* Background */
    --bg-dark: #0a0e1a;
    --bg-darker: #050810;

    /* Status Colors */
    --status-idle: #00e5ff;
    --status-speaking: #00ff88;
    --status-listening: #ff9100;
    --status-error: #ff5252;

    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Borders */
    --border-width: 2px;
    --border-radius: 12px;
    --border-radius-sm: 8px;

    /* Shadows */
    --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.3);
    --shadow-glow-strong: 0 0 40px rgba(0, 229, 255, 0.5);
    --shadow-panel: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ============================================
   Base Styles
   ============================================ */

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

html,
body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--text-primary);
    background: var(--bg-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Background Effects
   ============================================ */

.background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
    animation: gridScroll 20s linear infinite;
}

@keyframes gridScroll {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at top, rgba(0, 229, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(124, 77, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   Main Container
   ============================================ */

.main-container {
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-md);
    z-index: 1;
}

/* ============================================
   Glass Panel Effect
   ============================================ */

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: var(--border-width) solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow:
        var(--shadow-panel),
        inset 0 0 20px rgba(0, 229, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}

/* ============================================
   Header
   ============================================ */

.header {
    padding: var(--spacing-md);
    animation: slideDown 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    font-size: 2rem;
    color: var(--primary);
    text-shadow: var(--shadow-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.logo h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 0.2em;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-controls {
    display: flex;
    gap: var(--spacing-sm);
}

/* ============================================
   Buttons
   ============================================ */

.icon-btn {
    width: 40px;
    height: 40px;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    font-family: var(--font-body);
}

.icon-btn:hover {
    background: rgba(0, 229, 255, 0.2);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.icon-btn:active {
    transform: translateY(0);
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--bg-darker);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.4);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.primary-btn:hover {
    box-shadow: var(--shadow-glow-strong);
    transform: translateY(-2px);
}

.primary-btn:active {
    transform: translateY(0);
}

.secondary-btn {
    background: transparent;
    border: 2px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.secondary-btn:hover {
    background: rgba(0, 229, 255, 0.1);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Content Grid
   ============================================ */

.content-grid {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-md);
    min-height: 0;
    animation: fadeIn 0.8s ease-out 0.2s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* ============================================
   Avatar Section
   ============================================ */

.avatar-section {
    min-height: 0;
}

.viewport-container {
    height: 100%;
    position: relative;
    overflow: hidden;
}

.avatar-viewport {
    width: 100%;
    height: 100%;
    position: relative;
}

.avatar-viewport canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: opacity 0.5s ease-out;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--primary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.loading-bar {
    width: 200px;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.loading-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    animation: loadingProgress 2s ease-in-out infinite;
}

@keyframes loadingProgress {
    0%,
    100% {
        width: 0%;
    }
    50% {
        width: 100%;
    }
}

/* HUD Overlay */
.hud-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.hud-corner {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary);
    opacity: 0.5;
}

.hud-tl {
    top: var(--spacing-md);
    left: var(--spacing-md);
    border-right: none;
    border-bottom: none;
}

.hud-tr {
    top: var(--spacing-md);
    right: var(--spacing-md);
    border-left: none;
    border-bottom: none;
}

.hud-bl {
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    border-right: none;
    border-top: none;
}

.hud-br {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    border-left: none;
    border-top: none;
}

.status-badge {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 0.5rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    pointer-events: auto;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--status-idle);
    box-shadow: 0 0 10px var(--status-idle);
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.status-indicator.speaking {
    background: var(--status-speaking);
    box-shadow: 0 0 10px var(--status-speaking);
}

.status-indicator.listening {
    background: var(--status-listening);
    box-shadow: 0 0 10px var(--status-listening);
    animation: statusBlink 0.5s ease-in-out infinite;
}

@keyframes statusBlink {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.2;
    }
}

.status-text {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    color: var(--text-primary);
}

/* ============================================
   Control Panel
   ============================================ */

.control-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    overflow-y: auto;
    min-height: 0;
}

.control-panel::-webkit-scrollbar {
    width: 8px;
}

.control-panel::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.control-panel::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}

.control-panel::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

.control-section {
    padding: var(--spacing-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.title-icon {
    color: var(--primary);
    text-shadow: var(--shadow-glow);
}

/* Input Groups */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

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

.text-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    outline: none;
    transition: all 0.3s ease;
}

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

.text-input:focus {
    border-color: var(--primary);
    background: rgba(0, 229, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.select-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    outline: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.select-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.textarea-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
    outline: none;
    resize: vertical;
    transition: all 0.3s ease;
}

.textarea-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

/* Voice Button */
.voice-btn {
    width: 100%;
    background: rgba(0, 255, 136, 0.1);
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--border-radius-sm);
    color: var(--accent-green);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.voice-btn:hover {
    background: rgba(0, 255, 136, 0.2);
    border-color: var(--accent-green);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.voice-btn.active {
    background: rgba(255, 145, 0, 0.2);
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

.voice-btn.active .mic-icon {
    animation: micPulse 0.5s ease-in-out infinite;
}

@keyframes micPulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.voice-status {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.5rem;
}

/* Emotion Grid */
.emotion-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.emotion-btn {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    padding: 0.75rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.emotion-btn:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.2);
}

.emotion-btn:active {
    transform: translateY(0);
}

.emotion-btn[data-color='blue']:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.3);
}

.emotion-btn[data-color='green']:hover {
    border-color: var(--accent-green);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.3);
}

.emotion-btn[data-color='purple']:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 4px 15px rgba(179, 136, 255, 0.3);
}

.emotion-btn[data-color='orange']:hover {
    border-color: var(--accent-orange);
    box-shadow: 0 4px 15px rgba(255, 145, 0, 0.3);
}

.emotion-icon {
    font-size: 1.5rem;
}

.emotion-label {
    font-size: 0.75rem;
}

/* Chat History */
.history-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.clear-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

.chat-history {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-sm);
    overflow-y: auto;
    min-height: 0;
}

.chat-history::-webkit-scrollbar {
    width: 6px;
}

.chat-history::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.chat-history::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 3px;
}

.empty-state {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
    padding: var(--spacing-md);
    opacity: 0.5;
}

.chat-message {
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
}

.chat-message.user {
    background: rgba(0, 229, 255, 0.1);
    border-left: 3px solid var(--primary);
}

.chat-message.avatar {
    background: rgba(0, 255, 136, 0.1);
    border-left: 3px solid var(--accent-green);
}

.message-sender {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.message-sender.user {
    color: var(--primary);
}

.message-sender.avatar {
    color: var(--accent-green);
}

.message-text {
    color: var(--text-primary);
    line-height: 1.5;
}

/* ============================================
   Modals
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.modal {
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlide 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
}

.modal::-webkit-scrollbar {
    width: 8px;
}

.modal::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.modal::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}

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

.modal-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.close-btn {
    width: 32px;
    height: 32px;
    background: none;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: rotate(90deg);
}

.modal-content {
    padding: var(--spacing-md);
}

.config-section {
    margin-bottom: var(--spacing-lg);
}

.config-section:last-child {
    margin-bottom: 0;
}

.config-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* Provider Grid */
.provider-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.provider-card {
    position: relative;
    cursor: pointer;
}

.provider-radio {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.provider-content {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.provider-card:hover .provider-content {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.2);
}

.provider-radio:checked + .provider-content {
    background: rgba(0, 229, 255, 0.1);
    border-color: var(--primary);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

.provider-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.provider-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--glass-border);
}

/* Info Modal */
.info-section {
    margin-bottom: var(--spacing-md);
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-left: 3px solid var(--primary);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    line-height: 1.6;
}

.info-list li strong {
    color: var(--primary);
    font-weight: 600;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }

    .control-panel {
        max-height: 50vh;
    }
}

@media (max-width: 768px) {
    .main-container {
        padding: var(--spacing-sm);
    }

    .logo h1 {
        font-size: 1.2rem;
    }

    .control-section {
        padding: var(--spacing-sm);
    }

    .provider-grid {
        grid-template-columns: 1fr;
    }

    .modal {
        max-width: 100%;
    }
}

/* ============================================
   Utility Classes
   ============================================ */

.hidden {
    display: none !important;
}

.fade-out {
    animation: fadeOut 0.5s ease-out forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        pointer-events: none;
    }
}