/* =========================================================
   The Open Horizons Foundation — shared site styles
   Edit brand colors, typography, header, nav, buttons, and
   footer here. Page-specific sections (hero, donate form,
   resource cards, tabs, etc.) live inline in each page.
   ========================================================= */

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

/* ---------- Theme tokens ---------- */
:root {
    --primary-color: #2C5282;   /* Deep blue   */
    --secondary-color: #48BB78; /* Green       */
    --accent-color: #ED8936;    /* Orange      */
    --text-color: #2D3748;
    --light-bg: #F7FAFC;
    --white: #FFFFFF;
}

/* ---------- Base typography ---------- */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    line-height: 1.2;
}

/* ---------- Layout primitives ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 4rem 0;
}

/* ---------- Header ---------- */
header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    width: 100%;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

/* ---------- Navigation ---------- */
nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
}

nav a:hover {
    color: var(--primary-color);
}

/* ---------- Page header (used on inner pages) ---------- */
.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

/* ---------- Buttons ----------
   Works for both <a> and <button> elements.
   `margin-top` gives breathing room when a button follows body
   text; override with `.button { margin-top: 0; }` in tighter
   layouts (e.g. the homepage hero). */
.button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    margin-top: 1rem;
    border-radius: 5px;
    border: none;
    text-decoration: none;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s, background-color 0.3s;
}

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

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

.button-secondary {
    background-color: var(--secondary-color);
    color: var(--white);
}

.button-large {
    font-size: 1.2rem;
    padding: 1rem 2rem;
}

/* ---------- Footer ---------- */
footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 1rem 0;
}

.footer-text {
    width: 100%;
    text-align: center;
}

/* ---------- Skip link (accessibility) ----------
   Visually hidden until focused via Tab key, then appears
   at the top-left so keyboard users can jump past the nav. */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 0 0 5px 0;
    z-index: 100;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 0;
}

/* ---------- Impact banner (top of every page) ----------
   Annual update: to refresh for next year, search the repo for
   "99.92%" and "2025 donations" and update both in each HTML file. */
.impact-banner {
    background-color: var(--accent-color);
    color: var(--white);
    padding: 0.85rem 0;
}

.impact-banner-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.impact-stat {
    font-size: 1.85rem;
    font-weight: 800;
    line-height: 1;
}

.impact-copy {
    flex: 1;
    font-size: 0.95rem;
    min-width: 0;
}

.impact-cta {
    display: inline-block;
    padding: 0.4rem 1rem;
    background-color: rgba(255, 255, 255, 0.18);
    color: var(--white);
    font-weight: bold;
    text-decoration: none;
    white-space: nowrap;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.impact-cta:hover,
.impact-cta:focus {
    background-color: rgba(255, 255, 255, 0.3);
    outline: none;
}

/* ---------- Responsive: shared mobile rules ---------- */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        padding: 1rem 0;
    }

    .logo {
        margin-bottom: 0.5rem;
    }

    .logo img {
        max-height: 40px;
    }

    .logo span {
        font-size: 1rem;
    }

    nav ul {
        margin-top: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    nav a {
        font-size: 0.9rem;
        padding: 0.3rem 0.5rem;
    }
}

@media (max-width: 600px) {
    .impact-stat {
        font-size: 1.45rem;
    }

    .impact-copy {
        font-size: 0.85rem;
    }

    .impact-cta {
        display: none;
    }
}