/* ==========================================================================
   Proactive Solutions — Design System
   Palette: deep navy + white/neutral gray + green accent (from the PROACTIVE logo)
   ========================================================================== */

:root {
    --navy-900: #0c2231;
    --navy-800: #113045;
    --navy-700: #163e5a;
    --navy-600: #1d5277;
    --green-500: #73c462;
    --green-400: #8dcf80;
    --green-100: #e7f5e4;
    --gray-900: #1c232b;
    --gray-700: #4a5560;
    --gray-500: #77828c;
    --gray-300: #d3d9de;
    --gray-100: #f4f6f8;
    --white: #ffffff;
    --success: #1f7a4d;
    --error: #b3261e;

    --font-heading: Georgia, 'Times New Roman', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    --radius: 8px;
    --shadow-sm: 0 1px 3px rgba(10, 29, 51, 0.08);
    --shadow-md: 0 4px 16px rgba(10, 29, 51, 0.12);
    --shadow-lg: 0 12px 32px rgba(10, 29, 51, 0.16);
    --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--navy-900);
    line-height: 1.25;
    margin: 0 0 0.5em;
}
h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; color: var(--gray-700); }
a { color: var(--navy-700); text-decoration: none; }
a:hover { color: var(--green-500); }
img { max-width: 100%; display: block; }

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

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--navy-900);
    color: var(--white);
    padding: 12px 20px;
    z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---- Buttons ------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--green-500); color: var(--navy-900); }
.btn-primary:hover { background: var(--green-400); color: var(--navy-900); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-outline:hover { background: rgba(255,255,255,0.12); color: var(--white); }
.btn-navy { background: var(--navy-800); color: var(--white); }
.btn-navy:hover { background: var(--navy-700); color: var(--white); }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-danger { background: transparent; color: var(--error); border-color: var(--error); }
.btn-danger:hover { background: var(--error); color: var(--white); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ---- Header / Nav ---------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 500;
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    padding-bottom: 14px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--navy-900);
}
.brand:hover { color: var(--navy-900); }
.brand-logo-img { height: 40px; width: 40px; object-fit: contain; display: block; }
.brand-pro { color: var(--green-500); }
.footer-brand strong .brand-pro { color: var(--green-400); }
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--navy-900);
    color: var(--green-400);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.primary-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}
.primary-nav ul {
    list-style: none;
    display: flex;
    gap: 24px;
    margin: 0;
    padding: 0;
}
.primary-nav a {
    color: var(--gray-900);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
}
.primary-nav a:hover,
.primary-nav a.active { color: var(--navy-900); border-bottom-color: var(--green-500); }

.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-500);
}
.lang-switch a { color: var(--gray-500); padding: 4px 2px; }
.lang-switch a.active { color: var(--navy-900); }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
}
.nav-toggle span { display: block; width: 100%; height: 2px; background: var(--navy-900); }

/* ---- Hero -------------------------------------------------------- */
.hero {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
    color: var(--white);
    padding: 96px 0 88px;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: "";
    position: absolute;
    right: -120px;
    top: -120px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(115,196,98,0.18), transparent 70%);
}
.hero-inner { max-width: 680px; position: relative; }
.hero h1 { color: var(--white); }
.hero p.lead { color: rgba(255,255,255,0.85); font-size: 1.1rem; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

.page-hero {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
    color: var(--white);
    padding: 64px 0;
}
.page-hero h1 { color: var(--white); margin-bottom: 0.25rem; }
.page-hero p { color: rgba(255,255,255,0.85); max-width: 640px; margin: 0; }
.page-hero-mission { margin-top: 32px; }
.page-hero-mission h2 { color: var(--white); }
.page-hero-mission p { max-width: 720px; }

/* ---- Sections ------------------------------------------------------ */
section { padding: 72px 0; }
.section-alt { background: var(--gray-100); }
.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.section-head p { font-size: 1.05rem; }

/* ---- Cards --------------------------------------------------------- */
.grid {
    display: grid;
    gap: 28px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--green-100);
    color: var(--navy-800);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    font-size: 1.3rem;
}

/* ---- CTA band -------------------------------------------------------- */
.cta-band {
    background: var(--navy-800);
    color: var(--white);
    text-align: center;
    padding: 72px 0;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255,255,255,0.8); }

/* ---- About page ------------------------------------------------------ */
.expert-profile {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
    align-items: start;
    background: var(--gray-100);
    border-radius: var(--radius);
    padding: 40px;
}
.expert-photo {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius);
    background: var(--navy-800);
    color: var(--green-400);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 3rem;
    overflow: hidden;
}
.expert-photo img { width: 100%; height: 100%; object-fit: cover; }
.expert-role { color: var(--green-500); font-weight: 600; margin-bottom: 12px; }

.values-grid { text-align: left; }

/* ---- Reports library --------------------------------------------------- */
.reports-toolbar {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 36px;
    background: var(--gray-100);
    padding: 20px;
    border-radius: var(--radius);
}
.reports-toolbar input[type="search"],
.reports-toolbar select {
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: var(--font-body);
    background: var(--white);
}
.reports-toolbar input[type="search"] { flex: 2; min-width: 220px; }
.reports-toolbar select { flex: 1; min-width: 150px; }

.report-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.report-card .report-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.8rem;
}
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--green-100);
    color: var(--navy-800);
    font-weight: 600;
}
.badge-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}
.report-card .report-actions { display: flex; gap: 10px; margin-top: auto; padding-top: 8px; }
.report-card h3 { margin-bottom: 4px; }
.report-card .institution { color: var(--navy-700); font-weight: 600; font-size: 0.9rem; margin-bottom: 6px; }

.no-results { text-align: center; padding: 60px 20px; color: var(--gray-500); display: none; }
.no-results.visible { display: block; }

/* Modal (PDF preview) */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 29, 51, 0.75);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 24px;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: var(--white);
    border-radius: var(--radius);
    width: min(900px, 100%);
    height: min(85vh, 900px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-300);
}
.modal-header h3 { margin: 0; font-size: 1.05rem; }
.modal-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--gray-700);
    line-height: 1;
}
.modal-box iframe { flex: 1; border: none; width: 100%; }

/* ---- Contact page --------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
}
.form-group { margin-bottom: 20px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; color: var(--gray-900); }
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    background: var(--white);
    color: var(--gray-900);
}
textarea { resize: vertical; min-height: 140px; }
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--navy-600);
    box-shadow: 0 0 0 3px rgba(26, 66, 114, 0.15);
}
.form-hint { font-size: 0.8rem; color: var(--gray-500); margin-top: 4px; }

.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-size: 0.95rem;
}
.alert-success { background: #e7f5ec; color: var(--success); border: 1px solid #b7e0c6; }
.alert-error { background: #fbe9e7; color: var(--error); border: 1px solid #f2bcb7; }

.contact-info-list { list-style: none; padding: 0; margin: 24px 0; }
.contact-info-list li { display: flex; gap: 12px; margin-bottom: 18px; }
.contact-info-list .label { font-weight: 700; color: var(--navy-900); display: block; font-size: 0.85rem; }
.map-embed { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--gray-300); margin-top: 24px; }
.map-embed iframe { width: 100%; height: 260px; border: none; }

/* ---- Footer ------------------------------------------------------ */
.site-footer { background: var(--navy-900); color: rgba(255,255,255,0.75); margin-top: 64px; }
.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
    padding: 48px 24px;
}
.footer-brand { display: flex; gap: 12px; align-items: flex-start; max-width: 300px; }
.footer-brand strong { color: var(--white); }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin: 4px 0 0; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { color: rgba(255,255,255,0.75); font-size: 0.9rem; }
.footer-nav a:hover { color: var(--green-400); }
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact a { color: rgba(255,255,255,0.75); font-size: 0.9rem; }
.footer-contact a:hover { color: var(--green-400); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 18px 0; }
.footer-bottom p { margin: 0; font-size: 0.8rem; color: rgba(255,255,255,0.5); text-align: center; }

/* ---- Admin panel ------------------------------------------------------ */
.admin-body { background: var(--gray-100); min-height: 100vh; }
.admin-header {
    background: var(--navy-900);
    color: var(--white);
    padding: 18px 0;
}
.admin-header .container { display: flex; justify-content: space-between; align-items: center; }
.admin-header a { color: rgba(255,255,255,0.8); font-size: 0.9rem; }
.admin-header a:hover { color: var(--green-400); }
.admin-main { max-width: 960px; margin: 0 auto; padding: 40px 24px; }
.admin-panel { background: var(--white); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-300); }
.login-wrapper { max-width: 400px; margin: 80px auto; padding: 0 24px; }
.login-logo { height: 32px; width: auto; margin-bottom: 20px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

table.admin-table { width: 100%; border-collapse: collapse; margin-top: 16px; }
table.admin-table th, table.admin-table td {
    text-align: left;
    padding: 12px 14px;
    border-bottom: 1px solid var(--gray-300);
    font-size: 0.9rem;
}
table.admin-table th { color: var(--gray-500); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.03em; }
table.admin-table .row-actions { display: flex; gap: 8px; }

fieldset { border: 1px solid var(--gray-300); border-radius: var(--radius); padding: 20px; margin: 0 0 24px; }
legend { font-weight: 700; padding: 0 8px; color: var(--navy-900); }

/* ---- Responsive ------------------------------------------------------ */
@media (max-width: 900px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .expert-profile { grid-template-columns: 1fr; }
    .expert-photo { max-width: 220px; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .nav-toggle { display: flex; }
    .primary-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--gray-300);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px 24px;
        display: none;
        gap: 16px;
        box-shadow: var(--shadow-md);
    }
    .primary-nav.open { display: flex; }
    .primary-nav ul { flex-direction: column; gap: 4px; }
    .lang-switch { padding-top: 8px; border-top: 1px solid var(--gray-300); }
    .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
    .hero { padding: 64px 0; }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .field-row { grid-template-columns: 1fr; }
    section { padding: 56px 0; }
}