/* ==========================================
   CSS Custom Properties (Design Tokens)
   Colors sampled directly from the car's actual
   paint (Oasis Blue) and the decal's gold lettering.
   ========================================== */
:root {
    /* Colors */
    --color-primary: #0096BA;        /* Oasis Blue, sampled from the car's paint */
    --color-primary-dark: #00758F;   /* Darker blue for hover states */
    --color-secondary: #E8A93A;      /* Warm gold, matching the decal's "KINDNESS" text */
    --color-secondary-dark: #CC8F24; /* Darker gold for hover */
    --color-bg: #FAFAF8;             /* Very light off-white with warm tone */
    --color-bg-alt: #F2F2F0;         /* Slightly darker for alternating sections */
    --color-text: #202A36;           /* Near-navy, matching the decal panel */
    --color-text-light: #5A6470;     /* Lighter gray for secondary text */
    --color-white: #FFFFFF;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Quicksand', var(--font-family);
    --font-size-base: 18px;
    --font-size-h1: 3rem;
    --font-size-h2: 2rem;
    --font-size-h3: 1.4rem;
    --line-height-base: 1.7;
    --line-height-heading: 1.3;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 5rem;

    /* Layout */
    --container-max-width: 760px;
    --container-padding: 1.5rem;
    --border-radius: 12px;

    /* Transitions */
    --transition-speed: 0.3s;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

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

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

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

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    line-height: var(--line-height-heading);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: var(--font-size-h1);
    font-weight: 700;
}

h2 {
    font-size: var(--font-size-h2);
}

h3 {
    font-size: var(--font-size-h3);
}

p {
    margin-bottom: var(--spacing-sm);
}

p:last-child {
    margin-bottom: 0;
}

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

a:hover,
a:focus {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

strong {
    font-weight: 600;
}

/* ==========================================
   Accessibility - Skip Link
   ========================================== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-decoration: none;
    z-index: 100;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
    outline: 2px solid var(--color-text);
}

/* ==========================================
   Layout - Container
   ========================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ==========================================
   Header / Navigation
   ========================================== */
.site-header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.site-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--container-padding);
    max-width: var(--container-max-width);
}

.logo {
    font-family: var(--font-family-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo:hover,
.logo:focus {
    color: var(--color-primary-dark);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs);
}

.nav-links a:hover,
.nav-links a:focus {
    color: var(--color-primary);
    text-decoration: none;
}

/* ==========================================
   Sections
   ========================================== */
section {
    padding: var(--spacing-xl) 0;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    text-align: center;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
}

.hero h1 {
    margin-bottom: var(--spacing-sm);
}

.hero-subheading {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.hero-content {
    max-width: 640px;
    margin: 0 auto var(--spacing-lg);
    text-align: left;
}

.signature {
    text-align: left;
    font-family: var(--font-family-heading);
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-top: calc(var(--spacing-sm) * -0.5);
}

.hero-content .btn {
    display: block;
    margin: var(--spacing-md) auto 0;
    max-width: fit-content;
}

.hero-photo {
    max-width: 420px;
    margin: 0 auto;
}

.hero-photo img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1.05rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:focus {
    color: var(--color-white);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================
   Story Section
   ========================================== */
.story-section {
    background-color: var(--color-white);
}

.story-attribution {
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: var(--spacing-xs);
}

.story-section > .container > h2 {
    text-align: center;
    max-width: 620px;
    margin: 0 auto var(--spacing-lg);
}

.story-content {
    font-size: 1.05rem;
}

.story-content p {
    margin-bottom: var(--spacing-md);
}

/* Inline photos float alongside the story text on wider screens */
.story-photo {
    margin: 0 0 var(--spacing-md);
    text-align: center;
}

.story-photo img {
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.story-photo figcaption {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

@media (min-width: 700px) {
    .story-photo {
        max-width: 260px;
        margin-bottom: var(--spacing-sm);
    }

    .story-photo-right {
        float: right;
        margin-left: var(--spacing-md);
    }

    .story-photo-left {
        float: left;
        margin-right: var(--spacing-md);
    }
}

.tldr-box {
    clear: both;
    background-color: var(--color-bg-alt);
    border-left: 4px solid var(--color-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.tldr-box p {
    margin-bottom: 0;
}

.story-cta {
    clear: both;
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-bg-alt);
}

.story-cta p {
    color: var(--color-text-light);
}

.closing-note {
    clear: both;
    text-align: center;
    color: var(--color-text-light);
    font-style: italic;
    margin-top: var(--spacing-lg);
}

/* ==========================================
   Footer
   ========================================== */
.site-footer {
    background-color: var(--color-text);
    color: var(--color-bg);
    padding: var(--spacing-md) 0 var(--spacing-sm);
    text-align: center;
}

.site-footer a {
    color: var(--color-secondary);
}

.site-footer a:hover,
.site-footer a:focus {
    color: var(--color-secondary-dark);
}

.footer-more {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-privacy {
    font-size: 0.9rem;
    color: rgba(250, 250, 248, 0.65);
    max-width: 480px;
    margin: 0 auto var(--spacing-md);
}

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(250, 250, 248, 0.55);
}

/* ==========================================
   Back to Top
   ========================================== */
.scroll-top-btn {
    position: fixed;
    right: var(--spacing-md);
    bottom: var(--spacing-md);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-speed), transform var(--transition-speed), visibility var(--transition-speed);
    z-index: 60;
}

.scroll-top-btn.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover,
.scroll-top-btn:focus {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    text-decoration: none;
}

.scroll-top-btn:focus-visible {
    outline: 2px solid var(--color-primary-dark);
    outline-offset: 2px;
}

/* ==========================================
   Responsive
   ========================================== */
@media (max-width: 599px) {
    :root {
        --font-size-h1: 2.25rem;
        --font-size-h2: 1.6rem;
        --spacing-xl: 3rem;
        --spacing-lg: 2.5rem;
    }

    .site-header nav {
        padding: var(--spacing-xs) var(--container-padding);
    }

    .nav-links {
        gap: var(--spacing-sm);
    }
}