/* =============================================================================
   XENTAURI PI SCREEN - Main Styles
   ============================================================================= */

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
    background: #0a0a0a;
    color: #ffffff;
}

/* -----------------------------------------------------------------------------
   Connection Overlay
   ----------------------------------------------------------------------------- */
.connection-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

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

.connection-status {
    text-align: center;
    padding: 2rem;
}

.connection-status h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.connection-status p {
    color: #888;
    font-size: 0.9rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid #333;
    border-top-color: #4a90d9;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* -----------------------------------------------------------------------------
   Display Container
   ----------------------------------------------------------------------------- */
.display-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #0f0f23;
    overflow: hidden;
}

/* -----------------------------------------------------------------------------
   Pairing Screen
   ----------------------------------------------------------------------------- */
.pairing-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 50%, #16213e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.pairing-screen.hidden {
    display: none;
}

.pairing-content {
    text-align: center;
    padding: 3rem;
    max-width: 500px;
}

.pairing-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4a90d9 0%, #7b2cbf 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: bold;
    color: #fff;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 40px rgba(74, 144, 217, 0.3);
}

.pairing-content h1 {
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.pairing-subtitle {
    color: #888;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.pairing-input-container {
    margin: 2rem 0;
}

.pairing-input {
    width: 100%;
    max-width: 300px;
    font-size: 2.5rem;
    font-weight: bold;
    font-family: 'SF Mono', 'Fira Code', monospace;
    letter-spacing: 0.8rem;
    text-align: center;
    text-transform: uppercase;
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid #333;
    border-radius: 12px;
    padding: 1rem 1.5rem;
    outline: none;
    transition: all 0.3s ease;
}

.pairing-input::placeholder {
    color: #444;
    letter-spacing: 0.5rem;
}

.pairing-input:focus {
    border-color: #4a90d9;
    background: rgba(74, 144, 217, 0.1);
    box-shadow: 0 0 20px rgba(74, 144, 217, 0.2);
}

.pairing-input.error {
    border-color: #ef5350;
    background: rgba(239, 83, 80, 0.1);
}

.pairing-input.success {
    border-color: #4caf50;
    background: rgba(76, 175, 80, 0.1);
}

.pair-button {
    width: 100%;
    max-width: 300px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #4a90d9 0%, #3a7bc8 100%);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.pair-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(74, 144, 217, 0.3);
}

.pair-button:disabled {
    background: #333;
    color: #666;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.pair-button.loading {
    position: relative;
    color: transparent;
}

.pair-button.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.pairing-status {
    min-height: 1.5rem;
    margin-top: 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.pairing-status.error {
    color: #ef5350;
}

.pairing-status.success {
    color: #4caf50;
}

.pairing-instructions {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.pairing-instructions p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.retry-button {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    color: #fff;
    background: #4a90d9;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 1rem;
    transition: background 0.3s ease;
}

.retry-button:hover {
    background: #3a7bc8;
}

/* -----------------------------------------------------------------------------
   Error Screen
   ----------------------------------------------------------------------------- */
.error-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.error-screen.hidden {
    display: none;
}

.error-content {
    text-align: center;
    padding: 2rem;
}

.error-content h2 {
    color: #ef5350;
    margin-bottom: 1rem;
}

.error-content p {
    color: #888;
    margin-bottom: 0.5rem;
}

/* -----------------------------------------------------------------------------
   Idle Screen
   ----------------------------------------------------------------------------- */
.idle-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 2rem;
}

.idle-screen h1 {
    font-size: 3rem;
    color: #4a90d9;
    margin-bottom: 1rem;
}

.idle-screen p {
    color: #888;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.idle-screen .waiting {
    margin-top: 2rem;
    color: #666;
}

/* -----------------------------------------------------------------------------
   Scene Container
   ----------------------------------------------------------------------------- */
.scene-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

/* -----------------------------------------------------------------------------
   Utility Classes
   ----------------------------------------------------------------------------- */
.hidden {
    display: none !important;
}

.no-events {
    opacity: 0.6;
    font-style: italic;
}

.error {
    color: #ff6b6b;
}

/* -----------------------------------------------------------------------------
   Custom Layout Iframe (Sprint 5.2 - GPT-5.2 HTML)
   ----------------------------------------------------------------------------- */
.custom-layout-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    display: block;
}

.display-container .custom-layout-iframe {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}