/* ============================================================
   PasswordScan – styles.css
   Design System: Clean, bright, tool-style UI
   Author: PasswordScan
   ============================================================ */

/* ── 1. DESIGN TOKENS ─────────────────────────────────────── */
:root {
    /* Brand Colors */
    --clr-primary: #2563eb;
    --clr-primary-dark: #1d4ed8;
    --clr-primary-light: #eff6ff;

    /* Strength Colors */
    --clr-weak: #ef4444;
    --clr-moderate: #f97316;
    --clr-strong: #22c55e;
    --clr-very-strong: #16a34a;

    /* Neutral Palette */
    --clr-bg: #f8fafc;
    --clr-surface: #ffffff;
    --clr-border: #e2e8f0;
    --clr-border-light: #f1f5f9;

    /* Text */
    --clr-text-primary: #0f172a;
    --clr-text-secondary: #475569;
    --clr-text-muted: #94a3b8;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 2px 4px rgba(0, 0, 0, .05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, .08), 0 4px 6px rgba(0, 0, 0, .04);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, .08), 0 10px 10px rgba(0, 0, 0, .04);

    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Spacing */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Layout */
    --container-max: 1160px;
    --container-px: var(--space-5);
}

/* ── 2. RESET ──────────────────────────────────────────────── */


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

/* Remove tap highlight only where needed */
a,
button {
    -webkit-tap-highlight-color: transparent;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--clr-text-primary);
    background-color: var(--clr-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
svg {
    display: block;
    max-width: 100%;
}

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

ul,
ol {
    list-style: none;
}

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

input,
textarea,
select {
    font: inherit;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.25;
    font-weight: 700;
    color: var(--clr-text-primary);
}

/* ── 3. LAYOUT ─────────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-px);
}

.section {
    padding-block: var(--space-16);
}

.section-sm {
    padding-block: var(--space-10);
}

.section-lg {
    padding-block: var(--space-24);
}

/* ── 4. TYPOGRAPHY UTILITIES ───────────────────────────────── */
.text-xs {
    font-size: var(--text-xs);
}

.text-sm {
    font-size: var(--text-sm);
}

.text-lg {
    font-size: var(--text-lg);
}

.text-xl {
    font-size: var(--text-xl);
}

.text-2xl {
    font-size: var(--text-2xl);
}

.text-3xl {
    font-size: var(--text-3xl);
}

.text-muted {
    color: var(--clr-text-secondary);
}

.text-primary {
    color: var(--clr-primary);
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.text-center {
    text-align: center;
}

/* ── 5. HEADER / NAV ───────────────────────────────────────── */
#header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--clr-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.header-scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border-bottom-color: transparent;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    /* Default height */
    transition: height 0.3s ease;
}

.header-scrolled .header-inner {
    height: 64px;
    /* Reduced height on scroll */
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--clr-text-primary);
    flex-shrink: 0;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo span.accent {
    color: var(--clr-primary);
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-link {
    position: relative;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--clr-text-secondary);
    padding: var(--space-1) 0;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--clr-primary);
    transition: width 0.3s ease;
    border-radius: var(--radius-full);
}

.nav-link:hover {
    color: var(--clr-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--clr-primary);
}

/* CTA Button */
.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: var(--clr-primary);
    color: #fff !important;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--clr-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-2);
    z-index: 1010;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--clr-text-primary);
    transition: 0.3s;
    border-radius: 2px;
}

/* Hamburger animation */
.nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 991px) {
    .nav-toggle {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        height: auto;
        max-height: 0;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 0 var(--space-8);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
        gap: var(--space-4);
        overflow: hidden;
        border-top: 1px solid var(--clr-border);
    }

    .main-nav.open {
        max-height: 100vh;
        padding: var(--space-8);
    }

    .nav-links-wrap {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: var(--space-4);
    }

    .nav-link {
        font-size: var(--text-lg);
        width: 100%;
        padding: var(--space-2) 0;
    }

    .nav-cta-wrap {
        width: 100%;
        margin-top: var(--space-4);
    }

    .nav-cta {
        display: flex;
        justify-content: center;
        width: 100%;
    }
}

/* ── 6. HERO SECTION ───────────────────────────────────────── */
.hero {
    background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 50%, #f0fdf4 100%);
    padding-block: var(--space-16) var(--space-12);
    text-align: center;
    border-bottom: 1px solid var(--clr-border);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: #dcfce7;
    color: #15803d;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    margin-bottom: var(--space-5);
}

.hero h1 {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
    font-weight: 800;
    letter-spacing: -.02em;
    margin-bottom: var(--space-4);
    color: var(--clr-text-primary);
}

.hero h1 .highlight {
    color: var(--clr-primary);
    position: relative;
}

.hero-subtitle {
    font-size: clamp(var(--text-base), 2vw, var(--text-xl));
    color: var(--clr-text-secondary);
    max-width: 600px;
    margin-inline: auto;
    margin-bottom: var(--space-8);
}

.trust-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--clr-text-secondary);
    box-shadow: var(--shadow-xs);
}

/* ── 7. TOOL CARD ──────────────────────────────────────────── */
.tool-section {
    padding-block: var(--space-12);
}

.tool-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    max-width: 720px;
    margin-inline: auto;
}

/* Password Input */
.input-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--clr-text-primary);
    margin-bottom: var(--space-2);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input {
    width: 100%;
    height: 56px;
    padding: 0 96px 0 var(--space-4);
    background: var(--clr-bg);
    border: 2px solid var(--clr-border);
    border-radius: var(--radius-md);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--clr-text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    letter-spacing: .05em;
}

.password-input:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
    background: var(--clr-surface);
}

.password-input::placeholder {
    color: var(--clr-text-muted);
    letter-spacing: normal;
}

.input-actions {
    position: absolute;
    right: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    color: var(--clr-text-muted);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.icon-btn:hover {
    color: var(--clr-primary);
    background: var(--clr-primary-light);
}

.icon-btn svg {
    pointer-events: none;
}

/* Strength Meter */
.meter-section {
    margin-top: var(--space-6);
}

.meter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2);
}

.strength-label-text {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--clr-text-secondary);
    transition: color var(--transition-base);
}

.strength-label-text.weak {
    color: var(--clr-weak);
}

.strength-label-text.moderate {
    color: var(--clr-moderate);
}

.strength-label-text.strong {
    color: var(--clr-strong);
}

.strength-label-text.very-strong {
    color: var(--clr-very-strong);
}

.score-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 52px;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    background: var(--clr-border-light);
    color: var(--clr-text-muted);
    transition: background var(--transition-base), color var(--transition-base);
}

.score-badge.weak {
    background: #fee2e2;
    color: var(--clr-weak);
}

.score-badge.moderate {
    background: #ffedd5;
    color: var(--clr-moderate);
}

.score-badge.strong {
    background: #dcfce7;
    color: var(--clr-strong);
}

.score-badge.very-strong {
    background: #bbf7d0;
    color: var(--clr-very-strong);
}

.meter-track {
    height: 8px;
    background: var(--clr-border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    background: var(--clr-border);
    transition: width var(--transition-slow), background var(--transition-base);
}

.meter-fill.weak {
    background: var(--clr-weak);
}

.meter-fill.moderate {
    background: var(--clr-moderate);
}

.meter-fill.strong {
    background: var(--clr-strong);
}

.meter-fill.very-strong {
    background: var(--clr-very-strong);
}

/* Score Grid */
.score-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.score-card {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.score-card-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--clr-text-muted);
    letter-spacing: .05em;
    text-transform: uppercase;
}

.score-card-value {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--clr-text-primary);
    transition: color var(--transition-base);
}

.score-card-sub {
    font-size: var(--text-xs);
    color: var(--clr-text-muted);
}

/* Suggestions */
.suggestions-panel {
    margin-top: var(--space-5);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: none;
}

.suggestions-panel.visible {
    display: block;
}

.suggestions-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: #fffbeb;
    border-bottom: 1px solid #fde68a;
    font-size: var(--text-sm);
    font-weight: 600;
    color: #92400e;
}

.suggestions-list {
    padding: var(--space-3) var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.suggestion-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.5;
}

.suggestion-item::before {
    content: '→';
    color: var(--clr-moderate);
    flex-shrink: 0;
    font-weight: 700;
    margin-top: 1px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    padding: var(--space-3) var(--space-5);
    background: var(--clr-text-primary);
    color: #fff;
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
    z-index: 200;
    pointer-events: none;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ── 8. FEATURES STRIP ─────────────────────────────────────── */
.features-strip {
    background: var(--clr-surface);
    border-top: 1px solid var(--clr-border);
    border-bottom: 1px solid var(--clr-border);
    padding-block: var(--space-10);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.feature-item {}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-3);
    font-size: 24px;
}

.feature-icon.blue {
    background: #eff6ff;
}

.feature-icon.green {
    background: #f0fdf4;
}

.feature-icon.purple {
    background: #f5f3ff;
}

.feature-title {
    font-size: var(--text-base);
    font-weight: 700;
    margin-bottom: var(--space-1);
}

.feature-desc {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.6;
}

/* ── 9. FAQ SECTION ────────────────────────────────────────── */
.faq-section {
    background: var(--clr-bg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.section-label {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--clr-primary);
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 800;
    letter-spacing: -.02em;
    margin-bottom: var(--space-3);
}

.section-desc {
    font-size: var(--text-lg);
    color: var(--clr-text-secondary);
    max-width: 560px;
    margin-inline: auto;
}

.faq-list {
    max-width: 760px;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.faq-item {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-5);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--clr-text-primary);
    text-align: left;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--clr-bg);
}

.faq-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--clr-text-muted);
    transition: transform var(--transition-base);
}

.faq-item.open .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-answer-inner {
    padding: 0 var(--space-5) var(--space-5);
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.75;
}

.faq-item.open .faq-answer {
    max-height: 400px;
}

/* ── 10. RELATED ARTICLES ──────────────────────────────────── */
.articles-section {
    background: var(--clr-surface);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.article-card {
    background: var(--clr-bg);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.article-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--clr-primary-light);
    color: var(--clr-primary);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.article-title {
    font-size: var(--text-base);
    font-weight: 700;
    line-height: 1.4;
    color: var(--clr-text-primary);
}

.article-excerpt {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.6;
    flex: 1;
}

.article-link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--clr-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    transition: gap var(--transition-fast);
}

.article-card:hover .article-link {
    gap: var(--space-2);
}

/* ── 11. CTA SECTION ───────────────────────────────────────── */
.cta-section {
    background: linear-gradient(135deg, var(--clr-primary) 0%, #4338ca 100%);
    color: #fff;
    text-align: center;
    padding-block: var(--space-16);
}

.cta-section .section-title {
    color: #fff;
}

.cta-section .section-desc {
    color: rgba(255, 255, 255, .8);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-size: var(--text-base);
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--clr-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, .4);
}

.btn-primary:hover {
    background: var(--clr-primary-dark);
    box-shadow: 0 6px 20px rgba(37, 99, 235, .5);
}

.btn-white {
    background: #fff;
    color: var(--clr-primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, .15);
}

.btn-white:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, .2);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
    border-radius: var(--radius-full);
}

/* ── 12. BLOG STICKY BAR ───────────────────────────────────── */
.sticky-bar {
    position: sticky;
    top: 64px;
    z-index: 90;
    background: var(--clr-primary);
    color: #fff;
    text-align: center;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
}

.sticky-bar a {
    color: #fff;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity var(--transition-fast);
}

.sticky-bar a:hover {
    opacity: .85;
}

/* ── 13. BLOG ARTICLE LAYOUT ───────────────────────────────── */
.article-hero {
    background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
    padding-block: var(--space-16) var(--space-10);
    border-bottom: 1px solid var(--clr-border);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
    font-size: var(--text-sm);
    color: var(--clr-text-muted);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.article-hero h1 {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 800;
    letter-spacing: -.02em;
    margin-bottom: var(--space-5);
    max-width: 800px;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--space-10);
    padding-block: var(--space-12);
    align-items: start;
}

/* Table of Contents */
.toc-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    position: sticky;
    top: 120px;
    box-shadow: var(--shadow-sm);
}

.toc-title {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--clr-text-secondary);
    letter-spacing: .06em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.toc-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.toc-link {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    border-left: 2px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
    display: block;
}

.toc-link:hover,
.toc-link.active {
    color: var(--clr-primary);
    border-left-color: var(--clr-primary);
    background: var(--clr-primary-light);
}

/* Article body */
.article-body {
    max-width: 720px;
}

.article-body h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
    letter-spacing: -.01em;
}

.article-body h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
}

.article-body p {
    margin-bottom: var(--space-4);
    color: var(--clr-text-secondary);
    line-height: 1.8;
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body li {
    color: var(--clr-text-secondary);
    line-height: 1.7;
}

.article-body strong {
    color: var(--clr-text-primary);
    font-weight: 600;
}

.article-body code {
    background: var(--clr-border-light);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: .9em;
    font-family: 'Courier New', monospace;
    color: var(--clr-primary-dark);
}

.article-body blockquote {
    border-left: 4px solid var(--clr-primary);
    padding: var(--space-4) var(--space-5);
    background: var(--clr-primary-light);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-block: var(--space-6);
    color: var(--clr-text-secondary);
    font-style: italic;
}

/* Callout boxes */
.callout {
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    margin-block: var(--space-6);
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
}

.callout-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
}

.callout-warn {
    background: #fffbeb;
    border: 1px solid #fde68a;
}

.callout-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.callout-tip {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
}

.callout-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.callout-body {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.7;
}

.callout-body strong {
    color: var(--clr-text-primary);
}

/* Article CTA box */
.article-cta-box {
    background: linear-gradient(135deg, var(--clr-primary) 0%, #4338ca 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-6) var(--space-8);
    text-align: center;
    margin-block: var(--space-10);
    color: #fff;
}

.article-cta-box h3 {
    color: #fff;
    margin-bottom: var(--space-2);
}

.article-cta-box p {
    color: rgba(255, 255, 255, .8);
    margin-bottom: var(--space-4);
}

/* ── 14. ABOUT PAGE ────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.stat-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--clr-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
}

.trust-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.trust-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.trust-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--clr-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.trust-content h3 {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.trust-content p {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.6;
}

/* Algorithm steps */
.steps-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    counter-reset: steps;
}

.step-item {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--clr-primary);
    color: #fff;
    font-weight: 700;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: var(--text-base);
    margin-bottom: var(--space-1);
}

.step-content p {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.6;
}

/* ── 15. PRIVACY / LICENSE PAGES ───────────────────────────── */
.legal-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--space-10);
    padding-block: var(--space-12);
    align-items: start;
}

.legal-toc {
    position: sticky;
    top: 90px;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    box-shadow: var(--shadow-xs);
}

.legal-body h2 {
    font-size: var(--text-xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
    padding-top: var(--space-8);
    border-top: 1px solid var(--clr-border);
}

.legal-body h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.legal-body p {
    color: var(--clr-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-4);
}

/* ── 16. FOOTER ────────────────────────────────────────────── */
.site-footer {
    background: var(--clr-text-primary);
    color: rgba(255, 255, 255, .7);
    padding-block: var(--space-12) var(--space-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-8);
    padding-bottom: var(--space-10);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand {}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 700;
    font-size: var(--text-lg);
    color: #fff;
    margin-bottom: var(--space-3);
}

.footer-desc {
    font-size: var(--text-sm);
    line-height: 1.7;
    max-width: 260px;
    margin-bottom: var(--space-4);
}

.footer-disclaimer {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, .4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, .05);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, .08);
}

.footer-col-title {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: var(--space-4);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, .6);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: #fff;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-6);
    font-size: var(--text-sm);
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* ── 17. GENERIC CARD ──────────────────────────────────────── */
.card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
}

/* ── 18. RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    .toc-card {
        position: static;
    }

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

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

@media (max-width: 768px) {
    :root {
        --container-px: var(--space-4);
    }

    .nav-toggle {
        display: flex;
    }

    /* main-nav handled in 991px media query */

    .nav-link {
        width: 100%;
        justify-content: center;
        padding: var(--space-3);
    }

    .nav-cta {
        width: 100%;
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

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

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

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

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

    .legal-layout {
        grid-template-columns: 1fr;
    }

    .legal-toc {
        position: static;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-block: var(--space-12) var(--space-8);
    }

    .section {
        padding-block: var(--space-10);
    }

    .tool-card {
        padding: var(--space-5);
    }
}

@media (max-width: 480px) {
    .score-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .toast {
        left: var(--space-4);
        right: var(--space-4);
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ── 19. UTILITY CLASSES ───────────────────────────────────── */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.divider {
    height: 1px;
    background: var(--clr-border);
    margin-block: var(--space-8);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-6 {
    margin-top: var(--space-6);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.gap-3 {
    gap: var(--space-3);
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.flex-wrap {
    flex-wrap: wrap;
}

.inline-flex {
    display: inline-flex;
}

/* ── 20. SCORE FACTORS (Analysis Detail) ──────────────────── */
.factors-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

.factor-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.factor-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--clr-border);
    transition: background var(--transition-base);
}

.factor-indicator.pass {
    background: var(--clr-strong);
}

.factor-indicator.fail {
    background: var(--clr-weak);
}

.factor-indicator.warn {
    background: var(--clr-moderate);
}

.factor-label {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    flex: 1;
}

.factor-status {
    font-size: var(--text-xs);
    font-weight: 600;
}

.factor-status.pass {
    color: var(--clr-strong);
}

.factor-status.fail {
    color: var(--clr-weak);
}

.factor-status.warn {
    color: var(--clr-moderate);
}

/* ── 21. LEGAL PAGES ───────────────────────────────────────── */
.legal-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-12);
    padding-block: var(--space-12);
    align-items: start;
}

.legal-toc {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    position: sticky;
    top: 120px;
    box-shadow: var(--shadow-sm);
}

.legal-body h2 {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-top: var(--space-10);
    margin-bottom: var(--space-3);
    letter-spacing: -.01em;
}

.legal-body h2:first-child {
    margin-top: 0;
}

.legal-body p {
    color: var(--clr-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-4);
}

.legal-body strong {
    color: var(--clr-text-primary);
}

/* Generic card */
.card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-sm);
}

/* ── 22. PRINT STYLES ──────────────────────────────────────── */

@media print {

    .site-header,
    .sticky-bar,
    .site-footer,
    .nav-toggle {
        display: none;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    body {
        background: #fff;
        color: #000;
    }
}

/* ── 22. FEATURE CARDS ─────────────────────────────────────── */

/* ── Premium Features Section Layout ───────────────────────── */

.features-section {
    padding-block: var(--space-20);
    background: transparent;
}

/* Outer rounded container — light grey background, large radius */
.features-outer {
    background: #f8f9fb;
    border-radius: 28px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    padding: var(--space-16) var(--space-12);
    max-width: 1200px;
    margin: 0 auto;
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.04), 0 1px 4px rgba(0, 0, 0, 0.03);
}

/* Section header — centered above cards */
.features-section-header {
    text-align: center;
    max-width: 620px;
    margin: 0 auto var(--space-12);
}

/* Eyebrow label */
.features-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--clr-primary);
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

/* Section title */
.features-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--clr-text-primary);
    line-height: 1.2;
    margin: 0 0 var(--space-4);
}

/* Section subtitle */
.features-subtitle {
    font-size: var(--text-base);
    color: var(--clr-text-secondary);
    line-height: 1.75;
    max-width: 520px;
    margin: 0 auto var(--space-6);
}

/* Decorative divider line under subtitle */
.features-divider {
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-primary) 0%, #818cf8 100%);
    border-radius: var(--radius-full);
    margin: 0 auto;
}

/* ── Card Grid ───────────────────────────────────────────────── */

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

/* ── Feature Card ────────────────────────────────────────────── */

.feature-card {
    background: #ffffff;
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 18px;
    padding: 28px 28px 32px;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    position: relative;
    overflow: hidden;
    transition:
        transform 0.27s cubic-bezier(0.22, 0.68, 0, 1.15),
        box-shadow 0.27s ease,
        border-color 0.27s ease;
    box-shadow:
        0 1px 2px rgba(0, 0, 0, 0.04),
        0 2px 8px rgba(0, 0, 0, 0.04);
}

/* Top accent bar — slides in on hover */
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-primary), #818cf8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    border-radius: 18px 18px 0 0;
}

.feature-card:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow:
        0 8px 28px rgba(37, 99, 235, 0.10),
        0 4px 12px rgba(0, 0, 0, 0.06),
        0 0 0 1px rgba(37, 99, 235, 0.08);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

/* ── Icon wrap — rounded square with soft tinted background ─── */

.fc-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-bottom: var(--space-1);
    transition: transform 0.27s cubic-bezier(0.22, 0.68, 0, 1.2);
}

.feature-card:hover .fc-icon-wrap {
    transform: scale(1.08) rotate(-4deg);
}

/* Icon color variants */
.fc-icon-wrap.fc-blue {
    background: #eff6ff;
    color: #2563eb;
}

.fc-icon-wrap.fc-green {
    background: #f0fdf4;
    color: #16a34a;
}

.fc-icon-wrap.fc-purple {
    background: #f5f3ff;
    color: #7c3aed;
}

.fc-icon-wrap.fc-orange {
    background: #fff7ed;
    color: #ea580c;
}

.fc-icon-wrap.fc-teal {
    background: #f0fdfa;
    color: #0d9488;
}

.fc-icon-wrap.fc-pink {
    background: #fdf4ff;
    color: #c026d3;
}

/* ── Card Typography ─────────────────────────────────────────── */

.fc-title {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--clr-text-primary);
    letter-spacing: -0.01em;
    line-height: 1.3;
    margin: 0;
}

.fc-desc {
    font-size: var(--text-sm);
    color: var(--clr-text-secondary);
    line-height: 1.75;
    margin: 0;
}

/* ── Responsive ─────────────────────────────────────────────── */

@media (max-width: 1024px) {
    .features-outer {
        padding: var(--space-12) var(--space-8);
    }
}

@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-outer {
        border-radius: 20px;
        padding: var(--space-10) var(--space-6);
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .feature-card {
        padding: 22px 22px 26px;
    }
}

@media (max-width: 480px) {
    .features-outer {
        border-radius: 16px;
        padding: var(--space-8) var(--space-5);
    }

}