/* ============================================
   SKAK Panel - Modern Dark Theme
   ============================================ */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #16161f;
    --bg-input: #1a1a25;
    --bg-hover: #1e1e2a;
    
    --border-color: #2a2a3a;
    --border-focus: #00d9ff;
    
    --text-primary: #ffffff;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --accent-cyan: #00d9ff;
    --accent-blue: #0066ff;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    
    --gradient-main: linear-gradient(135deg, #00d9ff 0%, #0066ff 100%);
    --gradient-hover: linear-gradient(135deg, #00e5ff 0%, #0077ff 100%);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(0, 217, 255, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

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

html {
    font-size: 16px;
}

body {
    font-family: var(--font-mono);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Login Page
   ============================================ */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    position: relative;
    width: 100%;
    max-width: 440px;
}

.login-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    z-index: 10;
    box-shadow: var(--shadow-lg);
}

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

.logo {
    margin-bottom: 20px;
}

.logo svg {
    filter: drop-shadow(0 0 20px rgba(0, 217, 255, 0.4));
}

.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.error-message {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 24px;
    color: var(--accent-red);
    font-size: 0.875rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: color 0.2s;
}

.input-wrapper input {
    width: 100%;
    padding: 14px 14px 14px 46px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
}

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

.input-wrapper input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.input-wrapper input:focus + .input-icon,
.input-wrapper:focus-within .input-icon {
    color: var(--accent-cyan);
}

.btn-login {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 24px;
    background: var(--gradient-main);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.btn-login:hover {
    background: var(--gradient-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

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

/* Background Effects */
.login-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(42, 42, 58, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(42, 42, 58, 0.3) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-cyan);
    top: -100px;
    right: -100px;
    opacity: 0.15;
}

.glow-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-blue);
    bottom: -50px;
    left: -50px;
    opacity: 0.2;
}

/* ============================================
   Main Page
   ============================================ */

.main-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-section h1 {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-logout:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.container {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.panel-header {
    margin-bottom: 24px;
}

.panel-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.panel-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.postback-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    gap: 20px;
}

.form-row-2 {
    grid-template-columns: 2fr 1fr;
}

.postback-form input[type="text"],
.postback-form input[type="number"] {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
}

.postback-form input::placeholder {
    color: var(--text-muted);
}

.postback-form input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

/* Select Dropdown */
.select-wrapper {
    position: relative;
}

.select-search {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.select-search:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
}

.select-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 280px;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-top: 4px;
    z-index: 1000;
    display: none;
    box-shadow: var(--shadow-md);
}

.select-dropdown.active {
    display: block;
}

.dropdown-loading {
    padding: 16px;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.875rem;
}

.dropdown-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: var(--bg-hover);
}

.dropdown-item.selected {
    background: rgba(0, 217, 255, 0.1);
    color: var(--accent-cyan);
}

.dropdown-item-name {
    font-weight: 500;
    margin-bottom: 4px;
}

.dropdown-item-info {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dropdown-empty {
    padding: 16px;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.875rem;
}

/* Submit Button */
.btn-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--gradient-main);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.btn-submit:hover:not(:disabled) {
    background: var(--gradient-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-submit:active:not(:disabled) {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loader {
    display: flex;
    align-items: center;
    gap: 10px;
}

.spinner {
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Results Panel */
.results-panel {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.4s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-count {
    background: var(--bg-input);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.panel-header:has(.results-count) {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.table-container {
    overflow-x: auto;
    margin: 0 -28px -28px;
    padding: 0 28px 28px;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.results-table th,
.results-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.results-table th {
    background: var(--bg-input);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.results-table th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}

.results-table th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
    width: 140px;
}

.results-table tbody tr:hover {
    background: var(--bg-hover);
}

.results-table td:first-child {
    word-break: break-all;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.status-sent {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-sm);
    color: var(--accent-green);
    font-weight: 500;
    font-size: 0.75rem;
}

.status-error {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
    color: var(--accent-red);
    font-weight: 500;
    font-size: 0.75rem;
}

/* Background Effects for Main Page */
.bg-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

/* ============================================
   Mobile Responsive
   ============================================ */

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .login-card {
        padding: 28px 24px;
    }
    
    .header {
        padding: 14px 16px;
    }
    
    .logo-section h1 {
        display: none;
    }
    
    .btn-logout span {
        display: none;
    }
    
    .container {
        padding: 20px 16px;
    }
    
    .panel {
        padding: 20px;
    }
    
    .form-row-2 {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        margin: 0 -20px -20px;
        padding: 0 20px 20px;
    }
    
    .results-table th,
    .results-table td {
        padding: 12px;
    }
    
    .results-table th:last-child {
        width: 100px;
    }
    
    .panel-header h2 {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-card {
        padding: 24px 20px;
    }
    
    .input-wrapper input,
    .select-search,
    .postback-form input[type="text"],
    .postback-form input[type="number"] {
        padding: 12px 14px;
        padding-left: 42px;
    }
    
    .postback-form input[type="text"],
    .postback-form input[type="number"] {
        padding-left: 14px;
    }
    
    .btn-login,
    .btn-submit {
        padding: 14px 20px;
    }
    
    .results-table {
        font-size: 0.75rem;
    }
    
    .results-table th,
    .results-table td {
        padding: 10px 8px;
    }
    
    .status-sent,
    .status-error {
        padding: 4px 8px;
        font-size: 0.7rem;
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
}