:root {
    /* Asimov Brand Colors */
    --asimov-blue: #1A73E9;
    --asimov-blue-glow: rgba(26, 115, 233, 0.4);
    --asimov-orange: #FB742D;
    
    /* Dark Theme Palette */
    --bg-page: #0F0F12;      /* Quase preto */
    --bg-card: #18181B;      /* Cinza muito escuro */
    
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --text-muted: #52525B;
    
    --border-color: #27272A;
    --border-hover: #3F3F46;
    
    /* Spacing & Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 24px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Background Glow Effect */
.background-glow {
    position: fixed;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(circle, rgba(26, 115, 233, 0.15) 0%, rgba(15, 15, 18, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.container {
    width: 100%;
    max-width: 580px;
    background: rgba(24, 24, 27, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 0.6s ease-out;
}

.panel-toolbar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 1.5rem;
}

.logout-link {
    width: auto;
    padding: 0.7rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    border-radius: 999px;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.logout-link:hover {
    color: var(--text-primary);
    border-color: rgba(26, 115, 233, 0.35);
    background: rgba(26, 115, 233, 0.12);
    box-shadow: none;
    transform: translateY(-1px);
}

/* Header Styles */
.header-content {
    text-align: center;
    margin-bottom: 2.5rem;
}

.badge {
    display: inline-block;
    background: rgba(26, 115, 233, 0.1);
    color: var(--asimov-blue);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 100px;
    margin-bottom: 1rem;
    border: 1px solid rgba(26, 115, 233, 0.2);
    letter-spacing: 0.05em;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.03em;
    background: linear-gradient(to right, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h1 span {
    color: var(--asimov-blue); /* Fallback */
    -webkit-text-fill-color: var(--asimov-blue);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 400px;
    margin: 0 auto;
}

.subtitle code {
    font-family: 'Fira Code', monospace;
    font-size: 0.9em;
    color: #dbe8ff;
}

/* Input Styles */
.input-wrapper {
    margin-bottom: 1.5rem;
    position: relative;
}

.input-group {
    position: relative;
}

.input-group input[type="url"] {
    width: 100%;
    min-height: 58px;
    padding: 0 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.input-group input[type="url"]::placeholder {
    color: var(--text-muted);
}

.input-group input[type="url"]:focus {
    border-color: rgba(26, 115, 233, 0.5);
    box-shadow: 0 0 0 4px rgba(26, 115, 233, 0.12);
    background: #0b0b0e;
}

.input-group input[type="url"]:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.input-focus-border {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    pointer-events: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-group:focus-within .input-focus-border {
    border-color: rgba(26, 115, 233, 0.32);
    box-shadow: 0 0 24px rgba(26, 115, 233, 0.14);
}

/* Button Styles */
button {
    width: 100%;
    padding: 16px;
    border-radius: var(--radius-md);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Inter', sans-serif;
}

#downloadBtn {
    background: var(--asimov-blue);
    color: white;
    box-shadow: 0 4px 12px rgba(26, 115, 233, 0.3);
}

#downloadBtn:hover:not(:disabled) {
    background: #1557b0;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26, 115, 233, 0.4);
}

#downloadBtn:disabled {
    background: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    margin-top: 1rem;
}

.secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.login-page {
    background:
        radial-gradient(circle at 18% 22%, rgba(27, 112, 255, 0.08), transparent 22%),
        radial-gradient(circle at 85% 14%, rgba(111, 220, 227, 0.05), transparent 18%),
        linear-gradient(180deg, #02070b 0%, #03070a 100%);
}

.login-vignette {
    position: fixed;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.18) 0%, rgba(0, 0, 0, 0) 18%, rgba(0, 0, 0, 0) 82%, rgba(0, 0, 0, 0.2) 100%),
        radial-gradient(circle at center, rgba(0, 0, 0, 0) 42%, rgba(0, 0, 0, 0.28) 100%);
    pointer-events: none;
}

.login-shell {
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

.login-card {
    width: 100%;
    max-width: 430px;
    padding: 2rem 2.55rem 1.75rem;
    display: flex;
    flex-direction: column;
    align-items: stretch;

    background: rgba(24, 24, 27, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 0.6s ease-out;
}

.login-logo {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 3.1rem;
    line-height: 1;
    letter-spacing: 0.08em;
    text-align: center;
    color: #d7dde0;
    margin-bottom: 2.5rem;
}

.login-header-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.2rem;
    color: #a8b4ba;
    font-size: 0.68rem;
    letter-spacing: 0.02em;
    justify-content: center;
}

.login-alert {
    margin-bottom: 1rem;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    border: 1px solid rgba(154, 219, 223, 0.16);
    background: rgba(125, 193, 198, 0.08);
    color: #d2f2f3;
    font-size: 0.82rem;
}

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

.login-field {
    margin-bottom: 1rem;
}

.login-field label {
    display: block;
    margin-bottom: 0.55rem;
    color: #95a4aa;
    font-size: 0.68rem;
    letter-spacing: 0.01em;
}

.login-page .login-input-frame {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 46px;
    padding: 0 0.95rem;
    border-radius: 10px;
    border: 1px solid rgba(136, 154, 162, 0.16);
    background: rgba(8, 15, 19, 0.92);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
    transition: border-color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.login-page .login-input-frame:focus-within {
    border-color: rgba(159, 207, 208, 0.34);
    background: rgba(10, 18, 22, 0.98);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.03),
        0 0 0 3px rgba(159, 207, 208, 0.06);
}

.login-page .login-field input {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    min-height: 44px;
    padding: 0;
    border: none !important;
    background: transparent !important;
    background-color: transparent !important;
    box-shadow: none !important;
    color: #d7e2e6;
    caret-color: #d7e2e6;
    font-size: 0.82rem;
    letter-spacing: 0.01em;
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
}

.login-page .login-field input::placeholder {
    color: rgba(125, 140, 148, 0.7);
}

.login-page .login-field input:focus,
.login-page .login-field input:active,
.login-page .login-field input:focus-visible {
    outline: none !important;
    border: none !important;
    background: transparent !important;
    background-color: transparent !important;
    box-shadow: none !important;
}

.login-page .login-field input:-webkit-autofill,
.login-page .login-field input:-webkit-autofill:hover,
.login-page .login-field input:-webkit-autofill:focus,
.login-page .login-field input:-webkit-autofill:active {
    -webkit-text-fill-color: #d7e2e6;
    caret-color: #d7e2e6;
    border: none !important;
    outline: none !important;
    -webkit-box-shadow: 0 0 0 1000px rgba(8, 15, 19, 0.92) inset !important;
    box-shadow: 0 0 0 1000px rgba(8, 15, 19, 0.92) inset !important;
    -webkit-background-clip: padding-box;
    transition: background-color 99999s ease-out 0s;
}

.login-page .login-password-shell input {
    padding-right: 1.8rem;
}

.login-page .login-password-dot {
    position: absolute;
    right: 0.95rem;
    top: 50%;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    transform: translateY(-50%);
    border: 1px solid rgba(125, 140, 148, 0.42);
    opacity: 0.75;
}

.login-help-row {
    display: flex;
    justify-content: flex-end;
    margin: 0.7rem 0 1.1rem;
}

.login-help-row span {
    color: #8ca2aa;
    font-size: 0.68rem;
}

.login-submit {
    margin-top: 0.2rem;
    min-height: 42px;
    padding: 0.8rem 1rem;
    border-radius: 999px;
    background: #9fcfd0;
    color: #17363d;
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: none;
}

.login-submit:hover {
    background: #b5e0e0;
    color: #0b252b;
    transform: none;
    box-shadow: none;
}

.login-legal {
    margin-top: 1.15rem;
    color: #6f8790;
    font-size: 0.62rem;
    text-align: center;
}

.login-legal a {
    color: #85a9b0;
    text-decoration: none;
    transition: color 0.18s ease;
}

.login-legal a:hover {
    color: #b9d9da;
}

.login-legal span {
    margin: 0 0.22rem;
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Logs Terminal */
.log-container {
    margin-top: 2rem;
    background: #000;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: none;
    animation: slideDown 0.3s ease;
}

.log-container.active { display: block; }

.log-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 10px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.log-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.copy-logs-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 4px 8px;
    width: auto;
    height: auto;
    display: flex;
    align-items: center;
    gap: 4px;
}

.copy-logs-btn:hover {
    color: var(--text-primary);
    transform: none;
    box-shadow: none;
}

.log-content {
    height: 250px;
    overflow-y: auto;
    padding: 16px;
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.log-entry {
    margin-bottom: 6px;
    word-break: break-all;
}

.log-entry:last-child {
    color: var(--asimov-orange); /* Highlight última linha */
    font-weight: 500;
}

/* Scrollbar para logs */
.log-content::-webkit-scrollbar { width: 6px; }
.log-content::-webkit-scrollbar-track { background: transparent; }
.log-content::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

/* Mensagens de Sucesso/Erro */
.success-message, .error-message {
    margin-top: 1.5rem;
    padding: 16px;
    border-radius: var(--radius-md);
    display: none;
    animation: fadeIn 0.3s ease;
    align-items: flex-start;
    gap: 12px;
}

.success-message.active, .error-message.active { display: flex; }

.success-message {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.success-text h3 {
    color: #10B981;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.success-message a {
    color: #10B981;
    font-size: 0.9rem;
    text-decoration: underline;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.error-text h3 {
    color: #EF4444;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

#errorText { color: #FCA5A5; font-size: 0.9rem; }

/* Animações */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; height: 0; }
    to { opacity: 1; height: auto; }
}

/* Responsividade */
@media (max-width: 640px) {
    .container { padding: 1.5rem; }
    h1 { font-size: 2rem; }

    .login-card {
        padding: 1.2rem 0.9rem;
    }

    .login-logo {
        font-size: 2.6rem;
        margin-bottom: 2rem;
    }

    .login-header-row {
        font-size: 0.64rem;
    }
}

@media (max-width: 640px) {
    .panel-toolbar {
        flex-wrap: wrap;
        gap: 0.75rem;
    }
}