/* ============================================
   Retire Empower Guide — Stylesheet
   Independent Educational Resource
   ============================================ */

:root {
    --color-bg: #ffffff;
    --color-bg-alt: #f4f6f8;
    --color-bg-dark: #0f1a2a;
    --color-text: #1a2332;
    --color-text-muted: #5a6a7e;
    --color-text-light: #e8edf3;
    --color-accent: #2d6cdf;
    --color-accent-dark: #1f4fa8;
    --color-accent-soft: #e8effc;
    --color-border: #dde3ea;
    --color-border-dark: #2a3a50;
    --font-main: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    --max-width: 1180px;
    --radius: 10px;
    --shadow-sm: 0 1px 3px rgba(15, 26, 42, 0.06);
    --shadow-md: 0 6px 24px rgba(15, 26, 42, 0.08);
    --transition: 0.28s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-accent-dark);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--color-text);
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}

.logo:hover {
    color: var(--color-text);
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.main-nav {
    display: flex;
    gap: 28px;
    align-items: center;
}

.main-nav a {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    font-weight: 500;
    position: relative;
    padding-bottom: 2px;
}

.main-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}

.main-nav a:hover {
    color: var(--color-accent);
}

.main-nav a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
    padding: 140px 0 90px;
    background: linear-gradient(165deg, #f7f9fc 0%, #eef3fa 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, rgba(45, 108, 223, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}

.eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 14px;
}

.hero h1 {
    font-size: 2.75rem;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    font-weight: 750;
}

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

.hero-lead {
    font-size: 1.08rem;
    color: var(--color-text-muted);
    max-width: 560px;
    margin-bottom: 28px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 26px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(45, 108, 223, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent-soft);
    color: var(--color-accent-dark);
    transform: translateY(-1px);
}

.hero-disclaimer {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    max-width: 520px;
    line-height: 1.5;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.7);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 6px 6px 0;
}

/* Hero visual */
.visual-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 24px;
    border: 1px solid var(--color-border);
}

.visual-stat {
    display: flex;
    align-items: baseline;
    gap: 14px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
}

.visual-stat:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    min-width: 72px;
}

.stat-label {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* ---------- Sections ---------- */
.section {
    padding: 90px 0;
}

.section-light {
    background: var(--color-bg);
}

.section-dark {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
}

.section-dark .eyebrow {
    color: #7ea8f0;
}

.section-dark .section-lead {
    color: #a8b8cc;
}

.section-header {
    max-width: 680px;
    margin-bottom: 52px;
}

.section-header h2 {
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin-bottom: 16px;
    font-weight: 720;
}

.section-lead {
    font-size: 1.02rem;
    color: var(--color-text-muted);
}

/* ---------- Overview Cards ---------- */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.overview-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 30px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    opacity: 0;
    transform: translateY(18px);
}

.overview-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.overview-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: #c8d6ea;
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    border-radius: 8px;
    font-weight: 800;
    font-size: 0.9rem;
    margin-bottom: 18px;
}

.overview-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.overview-card p {
    font-size: 0.94rem;
    color: var(--color-text-muted);
}

/* ---------- Pillars ---------- */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pillar {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
    opacity: 0;
    transform: translateY(18px);
}

.pillar.revealed {
    opacity: 1;
    transform: translateY(0);
}

.pillar:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: #3a4f6a;
    transform: translateY(-3px);
}

.pillar-number {
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: #7ea8f0;
    margin-bottom: 14px;
    text-transform: uppercase;
}

.pillar h3 {
    font-size: 1.02rem;
    margin-bottom: 10px;
    font-weight: 680;
    color: #fff;
}

.pillar p {
    font-size: 0.88rem;
    color: #a8b8cc;
    line-height: 1.6;
}

/* ---------- Framework Steps ---------- */
.framework-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-left: 2px solid var(--color-border);
    padding-left: 0;
}

.step {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 28px;
    padding: 28px 0 28px 32px;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    opacity: 0;
    transform: translateX(-12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.step.revealed {
    opacity: 1;
    transform: translateX(0);
}

.step:last-child {
    border-bottom: none;
}

.step::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 34px;
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.step-marker {
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-accent);
    padding-top: 4px;
}

.step-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.step-content p {
    font-size: 0.94rem;
    color: var(--color-text-muted);
}

/* ---------- FAQ ---------- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 820px;
}

.faq-item {
    border-bottom: 1px solid var(--color-border-dark);
    padding: 0;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.faq-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

.faq-item summary {
    padding: 20px 0;
    cursor: pointer;
    font-weight: 650;
    font-size: 1rem;
    color: #fff;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.3rem;
    font-weight: 300;
    color: #7ea8f0;
    transition: transform var(--transition);
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    content: '−';
    transform: rotate(180deg);
}

.faq-item summary:hover {
    color: #7ea8f0;
}

.faq-item p {
    padding: 0 0 22px;
    font-size: 0.92rem;
    color: #a8b8cc;
    line-height: 1.7;
    max-width: 720px;
}

/* ---------- Contact ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: 48px;
    align-items: start;
}

.contact-content h2 {
    font-size: 1.9rem;
    margin-bottom: 16px;
    letter-spacing: -0.015em;
    font-weight: 720;
}

.contact-content p {
    font-size: 0.98rem;
    color: var(--color-text-muted);
    margin-bottom: 18px;
    max-width: 520px;
}

.contact-detail {
    padding: 16px 20px;
    background: var(--color-accent-soft);
    border-radius: 8px;
    font-size: 0.98rem;
    margin-bottom: 18px;
    display: inline-block;
}

.contact-detail a {
    font-weight: 600;
}

.contact-note {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.contact-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 30px;
}

.contact-card h3 {
    font-size: 1.05rem;
    margin-bottom: 14px;
    font-weight: 700;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 14px;
    line-height: 1.65;
}

.contact-card a {
    font-weight: 500;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-bg-dark);
    color: #8899aa;
    padding: 48px 0 36px;
    font-size: 0.88rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: #fff;
    font-size: 0.98rem;
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    color: #a8b8cc;
    font-size: 0.88rem;
}

.footer-links a:hover {
    color: #fff;
}

.footer-disclaimer {
    font-size: 0.8rem;
    line-height: 1.55;
    max-width: 720px;
    color: #6a7f99;
}

.footer-copy {
    font-size: 0.8rem;
    color: #556a80;
    padding-top: 12px;
    border-top: 1px solid #1e2d40;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 720px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }

    .main-nav.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

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

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

    .step {
        grid-template-columns: 1fr;
        gap: 8px;
        padding-left: 24px;
    }

    .hero {
        padding: 120px 0 70px;
    }

    .hero h1 {
        font-size: 1.85rem;
    }

    .section {
        padding: 70px 0;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

    .framework-steps {
        border-left: none;
        padding-left: 0;
    }

    .step::before {
        display: none;
    }

    .step {
        border-bottom: 1px solid var(--color-border);
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .visual-stat {
        flex-direction: column;
        gap: 4px;
    }

    .stat-number {
        min-width: auto;
    }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .overview-card,
    .pillar,
    .step,
    .faq-item {
        opacity: 1;
        transform: none;
    }
}