/* =============================================================================
   NGO Financial Report Website — Stylesheet
   ============================================================================= */

:root {
    --color-primary: #8B0000;
    --color-secondary: #B22222;
    --color-accent: #D9A441;
    --color-bg: #FAF6F5;
    --color-white: #FFFFFF;
    --color-text: #2B211F;
    --color-text-muted: #6B5B57;
    --color-border: #EAE1DD;

    --font-heading: 'Poppins', 'Segoe UI', sans-serif;
    --font-body: 'Inter', 'Segoe UI', sans-serif;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-sm: 0 2px 8px rgba(139, 0, 0, 0.06);
    --shadow-md: 0 8px 24px rgba(139, 0, 0, 0.10);
    --shadow-lg: 0 16px 40px rgba(139, 0, 0, 0.14);

    --transition-fast: 0.18s ease;
    --transition-med: 0.3s ease;

    --header-height: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 12px); }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-primary); line-height: 1.25; }

.container {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Accessibility ---------- */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 12px 20px;
    z-index: 1000;
    border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
    left: 0;
}
a:focus-visible,
button:focus-visible,
.nav-toggle:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-secondary);
    color: var(--color-white);
}
.btn-primary:hover, .btn-primary:focus-visible {
    background: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover, .btn-outline:focus-visible {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}
.btn-lg { padding: 15px 32px; font-size: 1.05rem; }
.btn-sm { padding: 10px 16px; font-size: 0.88rem; flex: 1; }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 500;
    background: rgba(250, 246, 245, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}
.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    min-width: 0;
}
.brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
    line-height: 1.2;
    white-space: nowrap;
}
.brand-subtitle {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.primary-nav ul {
    display: flex;
    gap: 8px;
}
.nav-link {
    display: inline-block;
    padding: 10px 16px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover, .nav-link:focus-visible {
    background: rgba(178, 34, 34, 0.1);
    color: var(--color-secondary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
}
.nav-toggle:hover { background: rgba(139, 0, 0, 0.06); }
.nav-toggle-bar {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    margin: 0 auto;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    padding: 96px 0 88px;
    background:
        radial-gradient(circle at 85% 15%, rgba(217, 164, 65, 0.12), transparent 55%),
        radial-gradient(circle at 10% 90%, rgba(178, 34, 34, 0.10), transparent 55%),
        linear-gradient(180deg, #FFFFFF 0%, var(--color-bg) 100%);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}
.hero-inner { max-width: 720px; }
.hero-title {
    font-size: clamp(2.4rem, 5vw, 3.4rem);
    font-weight: 700;
    margin-bottom: 16px;
}
.hero-identity {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-secondary);
    margin-bottom: 22px;
}
.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto 24px;
}
.hero-tagline {
    display: inline-block;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    max-width: 420px;
    margin: 0 auto 36px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

/* ---------- Sections ---------- */
section { padding: 80px 0; }
.section-heading {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}
.section-heading h2 {
    font-size: clamp(1.7rem, 3.2vw, 2.2rem);
    margin-bottom: 12px;
}
.section-heading p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

/* ---------- Transparency ---------- */
.transparency-section { background: var(--color-white); }
.transparency-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
.transparency-text p {
    font-size: 1.08rem;
    color: var(--color-text);
}
.transparency-icons {
    display: grid;
    gap: 20px;
}
.icon-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.icon-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}
.icon-card i {
    font-size: 1.4rem;
    color: var(--color-accent);
    background: rgba(217, 164, 65, 0.12);
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}
.icon-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.icon-card p { color: var(--color-text-muted); font-size: 0.95rem; }

/* ---------- Reports ---------- */
.reports-section { background: var(--color-bg); }
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}
.report-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-med), box-shadow var(--transition-med);
}
.report-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.report-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: rgba(139, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.report-icon i { font-size: 1.6rem; color: var(--color-primary); }
.report-title { font-size: 1.15rem; margin-bottom: 4px; }
.report-year {
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: 24px;
}
.report-files {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: auto;
}
.report-file + .report-file {
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}
.report-file-label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.report-actions {
    display: flex;
    gap: 10px;
}

.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--color-text-muted);
    background: var(--color-white);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-lg);
}
.empty-state i { font-size: 2.4rem; color: var(--color-secondary); margin-bottom: 16px; display: block; }
.empty-state p { font-size: 1.05rem; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.85);
    padding: 48px 0 0;
}
.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 460px;
}
.footer-ngo-name {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-white);
    font-size: 1.05rem;
    margin-bottom: 4px;
}
.footer-statement { font-size: 0.9rem; color: rgba(255, 255, 255, 0.72); }
.footer-links { display: flex; gap: 24px; }
.footer-links a {
    font-weight: 500;
    transition: color var(--transition-fast);
}
.footer-links a:hover, .footer-links a:focus-visible { color: var(--color-accent); }
.footer-bottom {
    padding: 20px 0;
    font-size: 0.85rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ---------- Fade-in animation ---------- */
.fade-in {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .fade-in { opacity: 1; transform: none; transition: none; }
    .btn, .report-card, .icon-card { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .transparency-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 760px) {
    .nav-toggle { display: flex; }

    .primary-nav {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-white);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-med);
    }
    .primary-nav.is-open { max-height: 320px; }
    .primary-nav ul {
        flex-direction: column;
        padding: 12px 24px 20px;
        gap: 4px;
    }
    .nav-link { display: block; padding: 12px 8px; }

    .hero { padding: 64px 0 56px; }
    section { padding: 56px 0; }

    .reports-grid { grid-template-columns: 1fr; }
    .report-actions { flex-direction: column; }
    .btn-sm { width: 100%; }

    .footer-inner { flex-direction: column; align-items: flex-start; text-align: left; }
}

@media (max-width: 420px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 2rem; }
}