/* ============================================
   PYTHON ZERO - PWA STYLES
   Install prompts, loading animations, polish
   ============================================ */

/* ============================================
   INSTALL BANNER
   ============================================ */

#install-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-top: var(--border-width) solid var(--color-primary);
    padding: 16px;
    transform: translateY(100%);
    transition: transform 0.3s ease-out;
    z-index: 9999;
    box-shadow: 0 -4px 12px rgba(10, 255, 10, 0.1);
}

#install-banner.show {
    transform: translateY(0);
}

.install-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 16px;
}

.install-message {
    display: flex;
    align-items: center;
    gap: 12px;
}

.install-icon {
    font-size: 24px;
    color: var(--color-primary);
    font-weight: bold;
}

.install-text {
    display: flex;
    flex-direction: column;
}

.install-text strong {
    color: var(--color-primary);
    font-size: 16px;
}

.install-text span {
    color: var(--color-text);
    font-size: 14px;
    opacity: 0.8;
}

.install-actions {
    display: flex;
    gap: 8px;
}

.install-btn {
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    padding: 10px 24px;
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.install-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.dismiss-btn {
    background: transparent;
    color: var(--color-text);
    border: var(--border-width) solid var(--color-border);
    padding: 10px 16px;
    font-family: var(--font-mono);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* Mobile install banner */
@media (max-width: 768px) {
    #install-banner {
        padding: 12px;
    }

    .install-content {
        flex-direction: column;
        align-items: stretch;
    }

    .install-message {
        flex-direction: column;
        text-align: center;
    }

    .install-actions {
        justify-content: center;
    }

    .install-btn {
        flex: 1;
    }
}

/* ============================================
   INSTALL SUCCESS
   ============================================ */

#install-success {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: var(--color-bg);
    border: var(--border-width) solid var(--color-primary);
    padding: 32px 48px;
    border-radius: 8px;
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease-out;
    box-shadow: 0 8px 32px rgba(10, 255, 10, 0.2);
}

#install-success.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.success-content {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--color-primary);
}

.success-content strong {
    font-size: 18px;
    display: block;
    margin-bottom: 4px;
}

.success-content p {
    font-size: 14px;
    opacity: 0.8;
    margin: 0;
}

/* ============================================
   LOADING ANIMATIONS
   ============================================ */

/* Loading spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Loading dots */
.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg) 0%,
        rgba(10, 255, 10, 0.1) 50%,
        var(--color-bg) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Pulse animation */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

/* Fade in */
.fade-in {
    animation: fade-in 0.3s ease-out;
}

@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Slide up */
.slide-up {
    animation: slide-up 0.3s ease-out;
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   POLISH: SMOOTH SCROLLBARS
   ============================================ */

/* Custom scrollbar (Webkit) */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) var(--color-bg);
}

/* ============================================
   POLISH: FOCUS STATES
   ============================================ */

/* Better focus styles */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Remove outline for mouse users */
button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
    outline: none;
}

/* ============================================
   POLISH: SELECTION
   ============================================ */

::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

::-moz-selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ============================================
   POLISH: SMOOTH ANIMATIONS
   ============================================ */

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   UPDATE NOTIFICATION
   ============================================ */

#update-notification button {
    background: var(--color-bg);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    padding: 8px 16px;
    font-family: var(--font-mono);
    font-size: 14px;
    cursor: pointer;
    margin: 0 4px;
    transition: all 0.2s;
}

#update-notification button:hover {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ============================================
   OFFLINE INDICATOR
   ============================================ */

.offline-indicator {
    position: fixed;
    bottom: 16px;
    right: 16px;
    background: rgba(255, 68, 68, 0.95);
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    z-index: 9998;
    animation: slide-up 0.3s ease-out;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.online-indicator {
    background: rgba(10, 255, 10, 0.95);
    color: black;
}

/* ============================================
   LOADING STATES
   ============================================ */

.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ============================================
   TOOLTIPS
   ============================================ */

[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--color-bg);
    color: var(--color-primary);
    padding: 6px 12px;
    border: var(--border-width) solid var(--color-primary);
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 1000;
    animation: fade-in 0.2s ease-out;
}

[data-tooltip]:hover::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-primary);
}

/* ============================================
   MODAL SYSTEM
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.2s ease;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    opacity: 1;
}

.modal-container {
    background: var(--color-bg-elevated, #111);
    border: 1px solid var(--color-border-bright, #00d26a);
    border-radius: var(--border-radius, 4px);
    max-width: 480px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.2s ease;
    box-shadow: 0 0 40px rgba(0, 210, 106, 0.15);
}

.modal-overlay.show .modal-container {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border, #1a3d2a);
    background: var(--color-panel-bg, #0d0d0d);
}

.modal-header h3 {
    color: var(--color-primary, #00d26a);
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-dim, #666);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.modal-close:hover {
    color: var(--color-primary, #00d26a);
    background: var(--color-primary-glow, rgba(0, 210, 106, 0.15));
}

.modal-body {
    padding: 20px;
    color: var(--color-text, #b8b8b8);
    overflow-y: auto;
    max-height: 50vh;
}

.modal-body p {
    margin-bottom: 12px;
}

.modal-body ul {
    margin: 12px 0;
    padding-left: 20px;
}

.modal-body li {
    margin-bottom: 8px;
}

.modal-body kbd {
    background: var(--color-primary-dim, #0a5c32);
    color: var(--color-primary, #00d26a);
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 12px;
    border: 1px solid var(--color-border, #1a3d2a);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 20px;
    border-top: 1px solid var(--color-border, #1a3d2a);
    background: var(--color-panel-bg, #0d0d0d);
}

.modal-footer .btn {
    min-width: 100px;
}

/* Responsive modal */
@media (max-width: 480px) {
    .modal-container {
        width: 95%;
        margin: 10px;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }
}