/* ============================================================
   StratPlanCommand — "Wealth, Power & Excellence" Design System
   Adapted from Power-Excellence-Design-Guide.html
   ============================================================ */

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

/* --- Custom Properties --- */
:root {
    /* Typography */
    --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
    --font-sans: "Inter", "Proxima Nova", "Helvetica Neue", Arial, sans-serif;
    --font-size-hero: clamp(2.75rem, 5.5vw, 3.5rem);
    --font-size-h1: clamp(1.875rem, 3vw, 2.5rem);
    --font-size-body: clamp(1rem, 1.1vw, 1.125rem);
    --font-size-label: 0.8125rem;
    --font-size-metric: clamp(2.25rem, 4vw, 3.125rem);
    --letter-spacing-caps: 0.15em;
    --line-height-body: 1.7;
    --line-height-heading: 1.15;

    /* Primary */
    --color-obsidian: #0D0D0D;
    --color-near-black: #1A1A1A;
    --color-carbon: #2C2C2C;
    --color-warm-white: #F7F6F3;
    --color-white: #FFFFFF;

    /* Secondary */
    --color-graphite: #555555;
    --color-steel: #888888;
    --color-warm-gray: #C4C0B9;
    --color-parchment: #E8E4DF;
    --color-linen: #F2F0EC;

    /* Accent */
    --color-gold: #B5985A;
    --color-bronze: #8B7355;
    --color-navy: #1B3A4B;
    --color-green: #3D5A3E;

    /* Spacing */
    --section-padding: clamp(60px, 9vw, 140px);
    --content-max-width: 1440px;
    --content-margin: 56px;

    /* Motion */
    --ease-authority: cubic-bezier(0.25, 0.1, 0.25, 1.0);
    --duration-slow: 0.6s;
    --duration-medium: 0.4s;
    --duration-fast: 0.3s;
}

/* --- Base --- */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-near-black);
    background: var(--color-warm-white);
    line-height: var(--line-height-body);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 400;
    color: var(--color-near-black);
    line-height: var(--line-height-heading);
}

::selection {
    background: var(--color-gold);
    color: var(--color-obsidian);
}

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

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

/* --- Header (94px total, fixed) --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: background var(--duration-fast) var(--ease-authority),
                box-shadow var(--duration-fast) var(--ease-authority);
}

.header.scrolled {
    background: var(--color-obsidian);
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

/* Utility Bar (32px) */
.util-bar {
    height: 32px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 28px;
    padding: 0 var(--content-margin);
    background: var(--color-obsidian);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.util-bar a {
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--duration-fast) var(--ease-authority);
}

.util-bar a:hover {
    color: #FFFFFF;
}

/* Main Navigation (62px) */
.main-nav {
    height: 62px;
    display: flex;
    align-items: center;
    padding: 0 var(--content-margin);
    background: var(--color-obsidian);
}

/* Brand */
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand img {
    width: 36px;
    height: 36px;
}

.brand-text {
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: #FFFFFF;
}

/* Nav Items */
.nav-items {
    display: flex;
    align-items: center;
    gap: 36px;
    margin-left: 56px;
}

.nav-items a {
    font-size: 11.5px;
    font-weight: 500;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
    transition: color var(--duration-fast) var(--ease-authority);
    padding-bottom: 2px;
    border-bottom: 1.5px solid transparent;
}

.nav-items a:hover,
.nav-items a.active {
    color: #FFFFFF;
}

.nav-items a.active {
    border-bottom-color: #FFFFFF;
}

/* Nav CTA */
.nav-cta {
    margin-left: auto;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 0;
    padding: 10px 28px;
    transition: all var(--duration-fast) var(--ease-authority);
}

.nav-cta:hover {
    background: #FFFFFF;
    color: var(--color-obsidian);
    border-color: #FFFFFF;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: #FFFFFF;
    font-size: 24px;
    cursor: pointer;
    margin-left: auto;
    padding: 4px;
    line-height: 1;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-obsidian);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.mobile-nav-overlay.open {
    display: flex;
}

.mobile-nav-overlay a {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.75);
    transition: color var(--duration-fast) var(--ease-authority);
}

.mobile-nav-overlay a:hover {
    color: #FFFFFF;
}

.mobile-nav-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    color: #FFFFFF;
    font-size: 32px;
    cursor: pointer;
    line-height: 1;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 94px var(--content-margin) 80px;
    background: linear-gradient(135deg, #0D0D0D 0%, #1A1A1A 40%, #2C2C2C 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 70% 40%, rgba(181, 152, 90, 0.05), transparent 60%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 740px;
}

.hero-kicker {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    margin-bottom: 24px;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: var(--font-size-hero);
    font-weight: 300;
    color: #FFFFFF;
    line-height: var(--line-height-heading);
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 em {
    font-weight: 400;
    font-style: italic;
}

.hero-sub {
    font-size: 15px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.5);
    max-width: 440px;
    margin: 18px auto 0;
    line-height: var(--line-height-body);
}

.hero-cta {
    display: inline-block;
    margin-top: 40px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 0;
    padding: 13px 38px;
    transition: all var(--duration-fast) var(--ease-authority);
}

.hero-cta:hover {
    background: #FFFFFF;
    color: var(--color-obsidian);
    border-color: #FFFFFF;
}

/* --- Metrics Strip --- */
.metrics {
    background: var(--color-warm-white);
    padding: 64px var(--content-margin);
}

.metrics-inner {
    display: flex;
    justify-content: center;
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.metric {
    flex: 1;
    max-width: 260px;
    text-align: center;
    padding: 0 32px;
    border-right: 1px solid #E0DCD6;
}

.metric:last-child {
    border-right: none;
}

.metric-number {
    font-family: var(--font-serif);
    font-size: var(--font-size-metric);
    font-weight: 300;
    color: var(--color-near-black);
    letter-spacing: -0.02em;
    line-height: 1;
}

.metric-label {
    font-family: var(--font-sans);
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #999999;
    margin-top: 10px;
    line-height: 1.5;
}

/* --- Section Shared --- */
.section-kicker {
    font-family: var(--font-serif);
    font-size: 16px;
    font-weight: 400;
    font-style: italic;
    color: var(--color-steel);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--color-near-black);
    letter-spacing: normal;
}

.section-rule {
    width: 60px;
    height: 1px;
    background: #E0DCD6;
    margin: 20px auto 0;
}

/* --- Features Section --- */
.features {
    background: var(--color-white);
    padding: var(--section-padding) var(--content-margin);
}

.features-header {
    text-align: center;
    margin-bottom: 64px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--color-linen);
    padding: 40px;
    transition: transform var(--duration-medium) var(--ease-authority);
}

.feature-card:hover {
    transform: scale(1.04);
}

.feature-icon {
    font-size: 28px;
    color: var(--color-gold);
    margin-bottom: 20px;
    line-height: 1;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    fill: none;
    stroke: var(--color-gold);
    stroke-width: 1.5;
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    color: var(--color-near-black);
    margin-bottom: 4px;
}

.feature-card p {
    font-family: var(--font-sans);
    font-size: var(--font-size-body);
    font-weight: 400;
    color: var(--color-graphite);
    margin-top: 8px;
    line-height: var(--line-height-body);
}

/* --- How It Works --- */
.how-it-works {
    background: var(--color-carbon);
    padding: var(--section-padding) var(--content-margin);
}

.how-it-works .section-kicker {
    color: var(--color-gold);
}

.how-it-works .section-title {
    color: #FFFFFF;
}

.how-it-works .section-rule {
    background: rgba(255, 255, 255, 0.15);
}

.steps {
    display: flex;
    justify-content: center;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

/* Gold connecting line */
.steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 15%;
    right: 15%;
    height: 1px;
    background: var(--color-gold);
    opacity: 0.3;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 300;
    color: var(--color-gold);
    margin-bottom: 16px;
    line-height: 1;
}

.step h3 {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: 400;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.step p {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.5);
    line-height: var(--line-height-body);
}

/* --- Pricing Section --- */
.pricing {
    background: var(--color-warm-white);
    padding: var(--section-padding) var(--content-margin);
}

.pricing-header {
    text-align: center;
    margin-bottom: 64px;
}

.pricing-cards {
    display: flex;
    justify-content: center;
    gap: 28px;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-linen);
    padding: 48px 40px;
    flex: 1;
    max-width: 420px;
    position: relative;
}

.pricing-card.featured {
    border-top: 2px solid var(--color-gold);
}

.tier-name {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-steel);
    margin-bottom: 16px;
}

.price {
    font-family: var(--font-serif);
    font-size: clamp(36px, 4vw, 48px);
    font-weight: 300;
    color: var(--color-near-black);
    line-height: 1;
}

.price-period {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 400;
    color: var(--color-steel);
    margin-top: 6px;
}

.pricing-features {
    list-style: none;
    margin: 28px 0 36px;
    padding: 0;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--color-graphite);
    line-height: 1.5;
}

.pricing-features li::before {
    content: '\2713';
    color: var(--color-warm-gray);
    font-weight: 600;
    flex-shrink: 0;
}

/* Button variants */
.btn-primary-light {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-near-black);
    border: 1px solid var(--color-near-black);
    border-radius: 0;
    padding: 12px 32px;
    background: transparent;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-authority);
}

.btn-primary-light:hover {
    background: var(--color-near-black);
    color: #FFFFFF;
}

.btn-primary-dark {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 0;
    padding: 12px 32px;
    background: transparent;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-authority);
}

.btn-primary-dark:hover {
    background: #FFFFFF;
    color: var(--color-obsidian);
    border-color: #FFFFFF;
}

.btn-filled-dark {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-warm-white);
    background: var(--color-obsidian);
    border: 1px solid var(--color-obsidian);
    border-radius: 0;
    padding: 13px 38px;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-authority);
}

.btn-filled-dark:hover {
    background: var(--color-near-black);
    border-color: var(--color-near-black);
}

/* --- Contact Section --- */
.contact {
    background: var(--color-linen);
    padding: var(--section-padding) var(--content-margin);
}

.contact-header {
    text-align: center;
    margin-bottom: 64px;
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 16px;
    border: 1px solid var(--color-warm-gray);
    border-radius: 0;
    font-family: var(--font-sans);
    font-size: 15px;
    color: var(--color-near-black);
    background: var(--color-warm-white);
    transition: border-color var(--duration-fast) var(--ease-authority);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--color-steel);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-gold);
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.contact-form .btn-filled-dark {
    width: 100%;
    text-align: center;
}

.contact-info h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 400;
    color: var(--color-near-black);
    margin-bottom: 16px;
    line-height: 1.3;
}

.contact-info p {
    font-family: var(--font-sans);
    font-size: var(--font-size-body);
    color: var(--color-graphite);
    margin-bottom: 20px;
    line-height: var(--line-height-body);
}

.success-message {
    background: var(--color-parchment);
    color: var(--color-green);
    padding: 15px;
    margin-bottom: 20px;
    font-size: 14px;
}

.error-message {
    background: var(--color-parchment);
    color: var(--color-bronze);
    padding: 15px;
    margin-bottom: 20px;
    font-size: 14px;
}

/* --- Footer (3-tier) --- */
.footer {
    background: var(--color-obsidian);
}

/* Tier 1 — Link Columns */
.footer-links {
    padding: 60px var(--content-margin) 52px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.footer-col h4 {
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 400;
    font-style: italic;
    color: #FFFFFF;
    margin-bottom: 22px;
}

.footer-col a {
    display: block;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 18px;
    transition: color var(--duration-fast) var(--ease-authority);
}

.footer-col a:hover {
    color: #FFFFFF;
}

/* Tier 2 — Social Row */
.footer-social {
    display: flex;
    align-items: center;
    padding: 0 var(--content-margin) 24px;
    max-width: 1100px;
    margin: 0 auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.social-icons {
    display: flex;
    gap: 24px;
}

.social-icons a {
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--duration-fast) var(--ease-authority);
}

.social-icons a:hover {
    color: #FFFFFF;
}

.social-icons svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.footer-lang {
    margin-left: auto;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
}

/* Tier 3 — Legal Row */
.footer-legal {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px var(--content-margin);
    max-width: 1100px;
    margin: 0 auto;
}

.legal-links {
    display: flex;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 11px;
}

.legal-links a {
    color: rgba(255, 255, 255, 0.35);
    transition: color var(--duration-fast) var(--ease-authority);
}

.legal-links a:hover {
    color: rgba(255, 255, 255, 0.6);
}

.legal-links .sep {
    color: rgba(255, 255, 255, 0.2);
}

.footer-copyright {
    font-family: var(--font-sans);
    font-size: 11px;
    color: rgba(255, 255, 255, 0.25);
}

/* --- Scroll Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--duration-slow) var(--ease-authority),
                transform var(--duration-slow) var(--ease-authority);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-child {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-authority),
                transform var(--duration-slow) var(--ease-authority);
}

.reveal-child.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive: Tablet (768-1199px) --- */
@media (max-width: 1199px) {
    :root {
        --content-margin: 36px;
        --section-padding: clamp(50px, 7vw, 80px);
    }

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

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

/* --- Responsive: Mobile (<768px) --- */
@media (max-width: 767px) {
    :root {
        --content-margin: 24px;
    }

    /* Header */
    .util-bar {
        display: none;
    }

    .main-nav {
        height: 56px;
        padding: 0 var(--content-margin);
    }

    .nav-items {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding: 100px var(--content-margin) 60px;
    }

    .hero h1 {
        font-size: clamp(2rem, 7vw, 2.75rem);
    }

    .hero-sub {
        font-size: 14px;
        max-width: 100%;
    }

    /* Metrics */
    .metrics {
        padding: 40px var(--content-margin);
    }

    .metrics-inner {
        flex-direction: column;
        gap: 32px;
    }

    .metric {
        max-width: 100%;
        border-right: none;
        border-bottom: 1px solid #E0DCD6;
        padding: 0 0 24px;
    }

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

    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }

    /* Steps */
    .steps {
        flex-direction: column;
        gap: 32px;
    }

    .steps::before {
        display: none;
    }

    /* Pricing */
    .pricing-cards {
        flex-direction: column;
        align-items: center;
    }

    .pricing-card {
        max-width: 100%;
    }

    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }

    /* Footer */
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .footer-social {
        flex-wrap: wrap;
        gap: 16px;
    }

    .footer-lang {
        margin-left: 0;
    }

    .footer-legal {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    /* Touch targets */
    .mobile-nav-overlay a {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .btn-primary-light,
    .btn-primary-dark,
    .btn-filled-dark,
    .hero-cta,
    .nav-cta {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}