/*
 * ZapLink Premium Modern Stylesheet
 * Optimized for lightweight loading, responsiveness, and premium typography
 */

:root {
    --bg-dark: #0a0a0c;
    --card-bg: #141416;
    --card-border: #222226;
    --card-hover-border: #323238;
    --input-bg: #18181c;
    --input-border: #2c2c32;
    --text-main: #f5f5f7;
    --text-muted: #86868b;
    
    /* Neon gradients */
    --primary-green: #00E676;
    --primary-teal: #00BFA5;
    --accent-gradient: linear-gradient(135deg, var(--primary-green), var(--primary-teal));
    
    /* iOS / Material Semantic Colors */
    --success: #30d158;
    --success-bg: rgba(48, 209, 88, 0.08);
    --success-border: rgba(48, 209, 88, 0.2);
    
    --error: #ff453a;
    --error-bg: rgba(255, 69, 58, 0.08);
    --error-border: rgba(255, 69, 58, 0.2);
    
    --warning: #ff9f0a;
    --warning-bg: rgba(255, 159, 10, 0.08);
    --warning-border: rgba(255, 159, 10, 0.2);
    
    --info: #0a84ff;
    --info-bg: rgba(10, 132, 255, 0.08);
    --info-border: rgba(10, 132, 255, 0.2);
    
    /* Layout & Shadows */
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.85);
    --shadow-accent: 0 8px 24px rgba(0, 230, 118, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-stack);
    background: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: #2a2a30;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #3a3a45;
}

/* Typography Utility */
h1, h2, h3, h4 {
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
}

/* Header / Hero */
.hero {
    text-align: center;
    padding: 40px 20px 20px;
    max-width: 600px;
    width: 100%;
}

.hero h1.logo {
    font-size: 2.8rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    letter-spacing: -0.04em;
    animation: pulseLogo 3s ease-in-out infinite;
}

.hero p {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.badges {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 14px;
    flex-wrap: wrap;
}

.badge {
    background: #16161a;
    border: 1px solid var(--card-border);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    color: #b3b3b3;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.badge:hover {
    border-color: var(--card-hover-border);
    transform: translateY(-1px);
}

/* Main Container */
.container {
    width: 100%;
    max-width: 520px;
    padding: 0 20px 40px;
}

/* Custom Tabs component */
.tabs {
    display: flex;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 20px;
    border: 1px solid var(--card-border);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: var(--transition-smooth);
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.tab.active {
    background: var(--accent-gradient);
    color: #050a0e;
    box-shadow: var(--shadow-accent);
}

.tab:hover:not(.active) {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.02);
}

/* Cards & Layout */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    position: relative;
    transition: border-color 0.3s;
}

.card:hover {
    border-color: var(--card-hover-border);
}

.card h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Sections visibility */
.section {
    display: none;
}
.section.active {
    display: block;
    animation: fadeIn 0.25s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Drop Zone Component */
.drop-zone {
    border: 2px dashed var(--input-border);
    border-radius: var(--radius-md);
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-bottom: 14px;
    background: rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--primary-green);
    background: rgba(0, 230, 118, 0.03);
    box-shadow: 0 0 12px rgba(0, 230, 118, 0.05) inset;
}

.drop-zone .icon {
    font-size: 2.2rem;
    margin-bottom: 8px;
    display: inline-block;
    transition: transform 0.3s ease;
}

.drop-zone:hover .icon {
    transform: translateY(-4px);
}

.drop-zone p {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.drop-zone .filename {
    color: var(--primary-green);
    font-weight: 700;
    margin-top: 10px;
    word-break: break-all;
    font-size: 0.9rem;
}

.file-count {
    color: var(--primary-green);
    font-size: 0.78rem;
    font-weight: 700;
    margin-top: 4px;
}

/* Buttons */
.btn {
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-stack);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    user-select: none;
    outline: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #050a0e;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-accent);
    transform: translateY(-1px);
}

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

.btn-primary:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: #1c1c1f;
    color: #d1d1d6;
    border: 1px solid var(--input-border);
}

.btn-secondary:hover {
    background: #252528;
    color: #ffffff;
    border-color: var(--input-border);
}

.btn-danger {
    background: rgba(255, 69, 58, 0.15);
    color: var(--error);
    border: 1px solid rgba(255, 69, 58, 0.2);
}

.btn-danger:hover {
    background: rgba(255, 69, 58, 0.25);
    border-color: var(--error);
}

.btn-row {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.btn-row .btn {
    flex: 1;
}

/* Monospaced Input Styling */
.pin-input {
    width: 100%;
    padding: 14px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    color: #ffffff;
    font-size: 1.8rem;
    text-align: center;
    letter-spacing: 10px;
    font-weight: 800;
    font-family: 'Inter', monospace;
    margin-bottom: 14px;
    outline: none;
    transition: var(--transition-smooth);
}

.pin-input:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
}

.pin-input::placeholder {
    color: #3a3a40;
    letter-spacing: 6px;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Progress bar system */
.progress-wrap {
    display: none;
    margin: 14px 0;
    padding: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
}

.progress-bar-bg {
    width: 100%;
    height: 8px;
    background: var(--input-bg);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid #1f1f23;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--accent-gradient);
    border-radius: 4px;
    transition: width 0.15s linear;
}

.progress-text {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
    font-weight: 500;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.progress-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-top: 4px;
}

.progress-stats .stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Result Screen component */
.result {
    display: none;
    text-align: center;
    margin-top: 14px;
    padding: 20px;
    border-radius: var(--radius-md);
    background: rgba(0, 230, 118, 0.04);
    border: 1px solid rgba(0, 230, 118, 0.12);
    animation: scaleUp 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.1) forwards;
}

.result.success {
    background: var(--success-bg);
    border-color: var(--success-border);
}

.result .pin-display {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--primary-green);
    letter-spacing: 8px;
    margin: 8px 0;
    font-family: 'Inter', monospace;
    text-indent: 8px; /* Centers with letter-spacing */
    cursor: pointer;
    transition: transform 0.2s;
}

.result .pin-display:active {
    transform: scale(0.96);
}

.result p {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
}

/* QR Code Section */
.qr-wrap {
    display: flex;
    justify-content: center;
    margin: 12px auto 8px;
    padding: 10px;
    background: #ffffff;
    border-radius: var(--radius-md);
    width: fit-content;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s;
}

.qr-wrap:hover {
    transform: scale(1.03);
}

#qrCode img {
    display: block;
}

/* Reconnection Banner */
.reconnect-banner {
    background: #1c1c1f;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    margin-bottom: 16px;
    display: none;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    animation: slideDown 0.3s ease forwards;
}

.reconnect-banner .text {
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.reconnect-banner .actions {
    display: flex;
    gap: 6px;
}

.reconnect-banner button {
    padding: 4px 8px;
    font-size: 0.72rem;
    border-radius: 6px;
    font-weight: 700;
}

/* Toast Notifications Component */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: calc(100% - 40px);
    max-width: 360px;
}

.toast {
    background: #16161a;
    border: 1px solid var(--card-border);
    color: var(--text-main);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    animation: slideInToast 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.2) forwards;
    transition: var(--transition-smooth);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast-icon {
    font-size: 1.1rem;
}

.toast-close {
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 700;
    border: none;
    background: none;
    transition: color 0.2s;
}

.toast-close:hover {
    color: #ffffff;
}

/* Centralized Toast types styles */
.toast.toast-success { border-left: 4px solid var(--success); }
.toast.toast-error { border-left: 4px solid var(--error); }
.toast.toast-warning { border-left: 4px solid var(--warning); }
.toast.toast-info { border-left: 4px solid var(--info); }

/* Centralized Status messages inside card */
.status-msg {
    text-align: center;
    padding: 10px 14px;
    margin-top: 12px;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.status-msg.error {
    display: flex;
    background: var(--error-bg);
    color: var(--error);
    border: 1px solid var(--error-border);
}

.status-msg.success {
    display: flex;
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.status-msg.warning {
    display: flex;
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid var(--warning-border);
}

/* Skeletons */
.skeleton-box {
    display: inline-block;
    height: 14px;
    position: relative;
    overflow: hidden;
    background-color: #242428;
    border-radius: 4px;
}

.skeleton-box::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.03) 20%,
        rgba(255, 255, 255, 0.06) 60%,
        rgba(255, 255, 255, 0) 100%
    );
    animation: shimmer 1.5s infinite;
    content: '';
}

/* Future AI Workspace components styles */
.ai-workspace-container {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.ai-search-box {
    position: relative;
    margin-bottom: 4px;
}

.ai-search-input {
    width: 100%;
    padding: 11px 14px 11px 36px;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    color: #ffffff;
    font-size: 0.85rem;
    font-family: var(--font-stack);
    outline: none;
    transition: var(--transition-smooth);
}

.ai-search-input:focus {
    border-color: var(--primary-teal);
    box-shadow: 0 0 0 3px rgba(0, 191, 165, 0.12);
}

.ai-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.ai-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.ai-chip {
    padding: 6px 12px;
    background: #1c1c1f;
    border: 1px solid var(--card-border);
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.ai-chip:hover {
    color: var(--primary-teal);
    border-color: rgba(0, 191, 165, 0.3);
    background: rgba(0, 191, 165, 0.03);
}

.ai-section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 700;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 4px;
}

.ai-history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ai-history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.ai-history-item:hover {
    background: rgba(255, 255, 255, 0.02);
    border-color: var(--card-hover-border);
}

.ai-history-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-history-meta h4 {
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}

.ai-history-meta p {
    font-size: 0.68rem;
    color: var(--text-muted);
}

.ai-history-status {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
}

.ai-history-status.done {
    background: rgba(48, 209, 88, 0.12);
    color: var(--success);
}

.ai-history-status.failed {
    background: rgba(255, 69, 58, 0.12);
    color: var(--error);
}

/* Screenshot Memory Cards Grid */
.screenshot-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 4px;
}

.screenshot-card {
    background: #1c1c1f;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
}

.screenshot-card:hover {
    border-color: var(--primary-teal);
    transform: translateY(-2px);
}

.screenshot-thumb {
    width: 100%;
    height: 70px;
    background-color: #242428;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-thumb::before {
    content: '🖼️';
    font-size: 1.5rem;
    opacity: 0.4;
}

.screenshot-card-title {
    padding: 6px 8px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.screenshot-card-time {
    font-size: 0.65rem;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
}

/* Footer styling */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: #4a4a52;
    font-size: 0.72rem;
    margin-top: auto;
    width: 100%;
    font-weight: 500;
}

.footer a {
    color: var(--primary-teal);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--primary-green);
}

/* Keyframes Animations */
@keyframes pulseLogo {
    0%, 100% { filter: drop-shadow(0 0 1px rgba(0, 230, 118, 0)); }
    50% { filter: drop-shadow(0 0 4px rgba(0, 230, 118, 0.25)); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleUp {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
    100% { transform: translateX(100%); }
}

@keyframes slideInToast {
    from { transform: translateY(100%) scale(0.9); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

@keyframes slideDown {
    from { transform: translateY(-8px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Responsive adjustments */
@media (max-width: 500px) {
    body {
        padding: 0 4px;
    }
    .hero {
        padding: 24px 10px 16px;
    }
    .hero h1.logo {
        font-size: 2.2rem;
    }
    .hero p {
        font-size: 0.85rem;
    }
    .badge {
        padding: 4px 10px;
        font-size: 0.72rem;
    }
    .container {
        padding: 0 10px 30px;
    }
    .card {
        padding: 18px;
        border-radius: var(--radius-md);
    }
    .pin-input {
        font-size: 1.45rem;
        letter-spacing: 6px;
        padding: 12px;
    }
    .pin-input::placeholder {
        font-size: 0.95rem;
        letter-spacing: 4px;
    }
    .result .pin-display {
        font-size: 2rem;
        letter-spacing: 6px;
    }
    .drop-zone {
        padding: 24px 12px;
    }
    .toast-container {
        left: 20px;
        width: calc(100% - 40px);
    }
    .screenshot-grid {
        grid-template-columns: 1fr;
    }
}