/* ============================================
   NAKANOSEC TOOLS — Shared Tool Page Styles
   Extends index.css design system
   ============================================ */

/* --- Custom Properties (inherit from main) --- */
:root {
    --clr-bg-primary: #0a0e17;
    --clr-bg-secondary: #111827;
    --clr-bg-card: rgba(17, 24, 39, 0.7);
    --clr-bg-card-hover: rgba(22, 33, 56, 0.85);
    --clr-surface: #1e293b;
    --clr-border: rgba(56, 189, 248, 0.12);
    --clr-border-hover: rgba(56, 189, 248, 0.3);
    --clr-text-primary: #f1f5f9;
    --clr-text-secondary: #94a3b8;
    --clr-text-muted: #64748b;
    --clr-accent-cyan: #38bdf8;
    --clr-accent-purple: #a78bfa;
    --clr-accent-pink: #f472b6;
    --clr-accent-green: #34d399;
    --clr-accent-red: #f87171;
    --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #a78bfa 50%, #f472b6 100%);
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    --shadow-card: 0 4px 24px -4px rgba(0, 0, 0, 0.3);
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    color: var(--clr-text-primary);
    background: var(--clr-bg-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    border: none;
    outline: none;
    background: none;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: 1000px;
    margin-inline: auto;
    padding-inline: 1.5rem;
}

/* --- Tool Header --- */
.tool-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(10, 14, 23, 0.85);
    border-bottom: 1px solid var(--clr-border);
}

.tool-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tool-header-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--clr-text-secondary);
    transition: color var(--transition-fast);
}

.tool-header-back:hover {
    color: var(--clr-accent-cyan);
}

.tool-header-back svg {
    width: 18px;
    height: 18px;
}

.tool-header-brand {
    font-weight: 700;
    font-size: var(--fs-sm);
    color: var(--clr-text-muted);
}

.tool-header-brand span {
    color: var(--clr-accent-cyan);
}

/* --- Tool Hero --- */
.tool-hero {
    padding: 4rem 0 2rem;
    text-align: center;
}

.tool-hero-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.tool-hero-icon.scanner {
    background: rgba(56, 189, 248, 0.12);
}

.tool-hero-icon.generator {
    background: rgba(167, 139, 250, 0.12);
}

.tool-hero-icon.encoder {
    background: rgba(52, 211, 153, 0.12);
}

.tool-hero-icon.converter {
    background: rgba(244, 114, 182, 0.12);
}

.tool-hero h1 {
    font-size: clamp(var(--fs-2xl), 3vw, var(--fs-3xl));
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.tool-hero p {
    color: var(--clr-text-secondary);
    max-width: 560px;
    margin-inline: auto;
    font-size: var(--fs-lg);
}

/* --- Tool Workspace --- */
.tool-workspace {
    padding: 2rem 0 4rem;
    flex: 1;
}

.tool-card-panel {
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.tool-card-panel h2 {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--clr-text-secondary);
    margin-bottom: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: var(--fs-sm);
    color: var(--clr-text-primary);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--clr-text-muted);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--clr-accent-cyan);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.form-textarea {
    min-height: 160px;
    resize: vertical;
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    line-height: 1.6;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.5rem;
    font-size: var(--fs-sm);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #0a0e17;
    border: none;
}

.btn-primary:hover {
    box-shadow: 0 4px 20px -4px rgba(56, 189, 248, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--clr-surface);
    color: var(--clr-text-primary);
    border: 1px solid var(--clr-border);
}

.btn-secondary:hover {
    border-color: var(--clr-border-hover);
    background: var(--clr-bg-card-hover);
}

.btn-danger {
    background: rgba(248, 113, 113, 0.12);
    color: var(--clr-accent-red);
    border: 1px solid rgba(248, 113, 113, 0.2);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.2);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* --- Output --- */
.output-area {
    position: relative;
}

.output-area pre {
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    color: var(--clr-accent-green);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    min-height: 120px;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-x: auto;
}

.copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.4rem 0.75rem;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--clr-accent-cyan);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: var(--clr-bg-card-hover);
}

.copy-btn.copied {
    color: var(--clr-accent-green);
}

/* --- Status Messages --- */
.status-msg {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    font-weight: 500;
    margin-top: 1rem;
    display: none;
}

.status-msg.show {
    display: block;
}

.status-msg.success {
    background: rgba(52, 211, 153, 0.1);
    color: var(--clr-accent-green);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.status-msg.error {
    background: rgba(248, 113, 113, 0.1);
    color: var(--clr-accent-red);
    border: 1px solid rgba(248, 113, 113, 0.2);
}

.status-msg.info {
    background: rgba(56, 189, 248, 0.1);
    color: var(--clr-accent-cyan);
    border: 1px solid rgba(56, 189, 248, 0.2);
}

/* --- Checkboxes & Toggles --- */
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-sm);
    color: var(--clr-text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--clr-accent-cyan);
    cursor: pointer;
}

/* --- Range Slider --- */
.range-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.range-group input[type="range"] {
    flex: 1;
    accent-color: var(--clr-accent-cyan);
    height: 6px;
}

.range-value {
    font-family: var(--font-mono);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--clr-accent-cyan);
    min-width: 3ch;
    text-align: center;
}

/* --- CVSS Specific --- */
.cvss-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.cvss-metric {
    margin-bottom: 0.5rem;
}

.cvss-metric-label {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--clr-text-secondary);
    margin-bottom: 0.5rem;
}

.cvss-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cvss-option {
    padding: 0.35rem 0.75rem;
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--clr-text-secondary);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cvss-option:hover {
    border-color: var(--clr-border-hover);
    color: var(--clr-text-primary);
}

.cvss-option.selected {
    background: rgba(56, 189, 248, 0.15);
    border-color: var(--clr-accent-cyan);
    color: var(--clr-accent-cyan);
}

.cvss-score-display {
    text-align: center;
    padding: 2rem;
}

.cvss-score-number {
    font-family: var(--font-mono);
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.cvss-score-label {
    font-size: var(--fs-lg);
    font-weight: 600;
}

.cvss-severity-none {
    color: var(--clr-text-muted);
}

.cvss-severity-low {
    color: var(--clr-accent-green);
}

.cvss-severity-medium {
    color: #fbbf24;
}

.cvss-severity-high {
    color: #fb923c;
}

.cvss-severity-critical {
    color: var(--clr-accent-red);
}

/* --- Clickjacking iframe --- */
.cj-frame-container {
    position: relative;
    width: 100%;
    height: 400px;
    border: 2px dashed var(--clr-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
}

.cj-frame-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.cj-result {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.cj-result.vulnerable {
    background: rgba(248, 113, 113, 0.1);
    color: var(--clr-accent-red);
    border: 1px solid rgba(248, 113, 113, 0.2);
}

.cj-result.safe {
    background: rgba(52, 211, 153, 0.1);
    color: var(--clr-accent-green);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

/* --- Crontab Specific --- */
.cron-fields {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.cron-field label {
    display: block;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
    text-align: center;
}

.cron-field input {
    width: 100%;
    text-align: center;
    padding: 0.5rem;
    font-family: var(--font-mono);
    font-size: var(--fs-lg);
    color: var(--clr-text-primary);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
}

.cron-field input:focus {
    border-color: var(--clr-accent-cyan);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.cron-expression {
    font-family: var(--font-mono);
    font-size: var(--fs-2xl);
    font-weight: 700;
    text-align: center;
    color: var(--clr-accent-cyan);
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-border);
    letter-spacing: 0.15em;
}

.cron-readable {
    text-align: center;
    margin-top: 1rem;
    color: var(--clr-text-secondary);
    font-size: var(--fs-sm);
}

/* --- Password Strength Meter --- */
.strength-meter {
    height: 6px;
    border-radius: 3px;
    background: var(--clr-surface);
    margin-top: 0.75rem;
    overflow: hidden;
}

.strength-meter-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease, background 0.3s ease;
}

.password-display {
    font-family: var(--font-mono);
    font-size: var(--fs-xl);
    font-weight: 600;
    text-align: center;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    color: var(--clr-accent-green);
    word-break: break-all;
    letter-spacing: 0.05em;
    position: relative;
}

/* --- Footer (tool pages) --- */
.tool-footer {
    padding: 1.5rem 0;
    border-top: 1px solid var(--clr-border);
    text-align: center;
    font-size: var(--fs-xs);
    color: var(--clr-text-muted);
    margin-top: auto;
}

.tool-footer a {
    color: var(--clr-accent-cyan);
    transition: opacity var(--transition-fast);
}

.tool-footer a:hover {
    opacity: 0.8;
}

/* --- Loading Spinner --- */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--clr-border);
    border-top-color: var(--clr-accent-cyan);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* --- Responsive --- */
@media (max-width: 768px) {
    .cron-fields {
        grid-template-columns: repeat(5, 1fr);
        gap: 0.35rem;
    }

    .cron-field input {
        font-size: var(--fs-sm);
        padding: 0.4rem;
    }

    .tool-card-panel {
        padding: 1.25rem;
    }

    .cvss-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding-inline: 1rem;
    }

    .tool-hero {
        padding: 3rem 0 1.5rem;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }
}