/* ============================================================
   Nader Explore - Expedition Cartography Theme
   Parchment paper, deep petrol ink, surveyor rust, brass tools.
   ============================================================ */

:root {
    --paper: #f3ead8;
    --paper-deep: #eadfc6;
    --petrol: #1d4a44;
    --petrol-dark: #143530;
    --rust: #bf4d28;
    --rust-dark: #9c3a1d;
    --brass: #c99a3c;
    --ink: #26313a;
    --ink-soft: #556270;
    --line: #d8cbae;
    --white: #fbf7ec;
    --serif: Georgia, 'Times New Roman', serif;
    --sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --mono: 'Consolas', 'Courier New', monospace;
    --radius: 12px;
    --shadow: 0 10px 28px rgba(29, 74, 68, 0.14);
}

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

body {
    font-family: var(--sans);
    color: var(--ink);
    background-color: var(--paper);
    background-image:
        repeating-linear-gradient(0deg, transparent, transparent 48px, rgba(29, 74, 68, 0.045) 48px, rgba(29, 74, 68, 0.045) 49px),
        repeating-linear-gradient(90deg, transparent, transparent 48px, rgba(29, 74, 68, 0.045) 48px, rgba(29, 74, 68, 0.045) 49px);
    line-height: 1.65;
}

.container { max-width: 1180px; margin: 0 auto; padding: 0 22px; }

.skip-link {
    position: absolute; left: -9999px; top: 0;
    background: var(--petrol); color: var(--white); padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
    background: var(--white);
    border-bottom: 3px solid var(--petrol);
    position: sticky; top: 0; z-index: 50;
    box-shadow: 0 2px 14px rgba(38, 49, 58, 0.08);
}
.header-inner {
    display: flex; align-items: center; gap: 26px;
    padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; }
.brand-mark { display: inline-flex; filter: drop-shadow(0 2px 3px rgba(29,74,68,0.25)); }
.brand-text {
    font-family: var(--serif); font-size: 1.5rem; font-weight: bold;
    color: var(--petrol); letter-spacing: 0.4px;
}
.brand-dot { color: var(--rust); }

.main-nav { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.main-nav a {
    text-decoration: none; color: var(--ink); font-size: 0.95rem; font-weight: 600;
    padding: 8px 13px; border-radius: 8px;
    border: 1.5px dashed transparent;
    transition: all 0.18s ease;
}
.main-nav a:hover { color: var(--rust); border-color: var(--rust); background: rgba(191, 77, 40, 0.06); }

.header-actions { display: flex; gap: 10px; }

.coord-strip {
    background: var(--petrol);
    color: var(--paper);
    overflow: hidden; white-space: nowrap;
    font-family: var(--mono); font-size: 0.72rem; letter-spacing: 1.5px;
    padding: 5px 0;
    border-bottom: 2px solid var(--brass);
}
.coord-strip span { display: inline-block; padding: 0 34px; opacity: 0.85; }
.coord-strip { position: relative; }
.coord-strip::before { content: ""; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block; text-decoration: none; cursor: pointer;
    font-family: var(--sans); font-weight: 700; font-size: 0.95rem;
    padding: 10px 20px; border-radius: 10px; border: 2px solid var(--petrol);
    transition: all 0.16s ease;
}
.btn-solid { background: var(--petrol); color: var(--white); box-shadow: 3px 3px 0 var(--rust); }
.btn-solid:hover { background: var(--petrol-dark); transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--rust); }
.btn-outline { background: transparent; color: var(--petrol); border-style: dashed; }
.btn-outline:hover { background: var(--petrol); color: var(--white); border-style: solid; }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }
.btn-block { display: block; text-align: center; width: 100%; }

/* ---------- Hero ---------- */
.hero {
    position: relative; overflow: hidden;
    background: linear-gradient(160deg, var(--paper) 0%, var(--paper-deep) 100%);
    border-bottom: 3px double var(--petrol);
    padding: 74px 0 66px;
}
.hero-contours {
    position: absolute; inset: 0; opacity: 0.5; pointer-events: none;
    background-image:
        repeating-radial-gradient(circle at 82% 30%, transparent 0, transparent 26px, rgba(29, 74, 68, 0.13) 26px, rgba(29, 74, 68, 0.13) 27px),
        repeating-radial-gradient(circle at 12% 88%, transparent 0, transparent 34px, rgba(191, 77, 40, 0.10) 34px, rgba(191, 77, 40, 0.10) 35px);
}
.hero-inner { position: relative; display: flex; align-items: center; gap: 48px; flex-wrap: wrap; }
.hero-copy { flex: 1 1 520px; }
.hero-kicker {
    display: inline-block; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 2.5px;
    text-transform: uppercase; color: var(--rust);
    border: 1.5px dashed var(--rust); padding: 6px 14px; border-radius: 20px;
    background: rgba(251, 247, 236, 0.8);
    margin-bottom: 22px;
}
.hero-title {
    font-family: var(--serif); font-size: clamp(2.4rem, 5vw, 3.6rem);
    line-height: 1.08; color: var(--petrol-dark); margin-bottom: 20px;
}
.hero-title .accent { color: var(--rust); font-style: italic; }
.hero-lede { font-size: 1.12rem; color: var(--ink-soft); max-width: 560px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-coords {
    margin-top: 30px; font-family: var(--mono); font-size: 0.85rem; color: var(--petrol);
    letter-spacing: 1px;
}
.hero-coords .tick { color: var(--rust); padding: 0 12px; font-weight: bold; }
.hero-compass { flex: 0 0 auto; filter: drop-shadow(0 8px 16px rgba(29, 74, 68, 0.25)); }
@media (max-width: 860px) { .hero-compass { display: none; } }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section-alt { background: var(--white); border-top: 2px solid var(--line); border-bottom: 2px solid var(--line); }
.section-head { text-align: center; margin-bottom: 44px; }
.kicker {
    display: inline-block; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 2.5px;
    text-transform: uppercase; color: var(--rust); margin-bottom: 12px;
}
.section-title { font-family: var(--serif); font-size: 2.1rem; color: var(--petrol-dark); margin-bottom: 10px; }
.section-sub { color: var(--ink-soft); font-size: 1.02rem; }

/* ---------- Atlas grid (category cards) ---------- */
.atlas-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px;
}
.atlas-card {
    position: relative; display: block; text-decoration: none;
    background: var(--white); border: 2px solid var(--petrol); border-radius: var(--radius);
    padding: 24px 22px 34px; overflow: hidden;
    box-shadow: 4px 4px 0 rgba(29, 74, 68, 0.16);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.atlas-card:hover { transform: translateY(-5px); box-shadow: 6px 10px 0 rgba(191, 77, 40, 0.25); }
.atlas-no {
    position: absolute; top: 10px; right: 14px;
    font-family: var(--mono); font-size: 1.5rem; color: var(--brass); opacity: 0.9;
}
.atlas-icon { font-size: 2rem; display: block; margin-bottom: 12px; }
.atlas-name { font-family: var(--serif); font-size: 1.22rem; color: var(--petrol-dark); margin-bottom: 6px; }
.atlas-tag { font-size: 0.9rem; color: var(--ink-soft); }
.atlas-route {
    position: absolute; left: 22px; right: 22px; bottom: 16px; height: 0;
    border-top: 2px dashed var(--rust); opacity: 0.6;
}
.atlas-route::after {
    content: ""; position: absolute; right: -2px; top: -6px;
    width: 8px; height: 8px; background: var(--rust); border-radius: 50%;
}
.atlas-card:hover .atlas-route { border-top-color: var(--petrol); }

/* ---------- Note list (guide rows) ---------- */
.note-list { display: flex; flex-direction: column; gap: 16px; }
.note-row {
    display: flex; align-items: center; gap: 20px;
    background: var(--white); border: 1.5px solid var(--line); border-left: 5px solid var(--petrol);
    border-radius: var(--radius); padding: 18px 22px;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.note-row:hover { border-left-color: var(--rust); box-shadow: var(--shadow); }
.note-stamp {
    flex: 0 0 108px; text-align: center;
    font-family: var(--mono); font-size: 0.68rem; color: var(--rust);
    border: 1.5px dashed var(--rust); border-radius: 8px; padding: 8px 6px;
    background: rgba(191, 77, 40, 0.05);
    transform: rotate(-1.5deg);
}
.note-main { flex: 1; min-width: 0; }
.note-name { font-family: var(--serif); font-size: 1.15rem; margin-bottom: 4px; }
.note-name a { color: var(--petrol-dark); text-decoration: none; }
.note-name a:hover { color: var(--rust); text-decoration: underline; }
.note-desc { font-size: 0.92rem; color: var(--ink-soft); }
.note-side { flex: 0 0 220px; display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.note-cat {
    font-family: var(--mono); font-size: 0.7rem; letter-spacing: 1px; text-transform: uppercase;
    color: var(--white); background: var(--petrol); padding: 3px 10px; border-radius: 12px;
}
.note-meta { font-size: 0.8rem; color: var(--ink-soft); }
@media (max-width: 900px) {
    .note-row { flex-wrap: wrap; }
    .note-stamp { display: none; }
    .note-side { flex: 1 1 100%; flex-direction: row; align-items: center; justify-content: space-between; }
}

/* ---------- Category page ---------- */
.breadcrumb {
    padding-top: 20px; padding-bottom: 0;
    font-family: var(--mono); font-size: 0.8rem; color: var(--ink-soft);
}
.breadcrumb a { color: var(--petrol); text-decoration: none; }
.breadcrumb a:hover { color: var(--rust); text-decoration: underline; }

.cat-head {
    background: linear-gradient(160deg, var(--paper) 0%, var(--paper-deep) 100%);
    border-bottom: 3px double var(--petrol);
    padding: 44px 0; margin-bottom: 40px;
    position: relative; overflow: hidden;
}
.cat-head::before {
    content: ""; position: absolute; inset: 0; opacity: 0.35; pointer-events: none;
    background-image: repeating-radial-gradient(circle at 92% 60%, transparent 0, transparent 22px, rgba(29, 74, 68, 0.12) 22px, rgba(29, 74, 68, 0.12) 23px);
}
.cat-head-inner { display: flex; align-items: center; gap: 22px; position: relative; }
.cat-icon {
    font-size: 3rem; background: var(--white); border: 2px solid var(--petrol);
    border-radius: 50%; width: 88px; height: 88px; display: inline-flex;
    align-items: center; justify-content: center; flex: 0 0 88px;
    box-shadow: 4px 4px 0 rgba(191, 77, 40, 0.3);
}
.cat-title { font-family: var(--serif); font-size: 2.3rem; color: var(--petrol-dark); }
.cat-tagline { font-size: 1.05rem; color: var(--ink-soft); font-style: italic; }

.two-col { display: grid; grid-template-columns: 1fr 340px; gap: 40px; padding-bottom: 70px; }
@media (max-width: 980px) { .two-col { grid-template-columns: 1fr; } }

/* ---------- Article ---------- */
.article { max-width: 780px; }
.article-lede { font-size: 1.14rem; color: var(--ink); margin-bottom: 26px; line-height: 1.75; }
.article-title { font-family: var(--serif); font-size: 2.3rem; color: var(--petrol-dark); margin-bottom: 16px; line-height: 1.15; }
.article-heading {
    font-family: var(--serif); font-size: 1.5rem; color: var(--petrol);
    margin: 38px 0 14px; padding-left: 16px; border-left: 5px solid var(--rust);
}
.article p { margin-bottom: 16px; color: var(--ink); }
.article ul { margin: 0 0 16px 22px; }
.article li { margin-bottom: 8px; }
.article a { color: var(--rust); }

.guide-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.meta-chip {
    font-size: 0.8rem; font-weight: 700; color: var(--petrol);
    border: 1.5px solid var(--petrol); border-radius: 16px; padding: 4px 13px;
    background: var(--white);
}
.meta-solid { background: var(--petrol); color: var(--white); }
.meta-coords { font-family: var(--mono); font-weight: 400; border-style: dashed; color: var(--rust); border-color: var(--rust); }

.faq-item {
    border: 1.5px solid var(--line); border-left: 4px solid var(--brass);
    border-radius: 10px; padding: 16px 20px; margin-bottom: 14px; background: var(--white);
}
.faq-item h3 { font-family: var(--serif); font-size: 1.08rem; color: var(--petrol-dark); margin-bottom: 8px; }
.faq-item p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- Shelf (sidebar) ---------- */
aside { position: relative; }
.shelf {
    position: sticky; top: 120px;
    background: var(--white); border: 2px solid var(--petrol); border-radius: var(--radius);
    padding: 22px; box-shadow: 5px 5px 0 rgba(29, 74, 68, 0.14);
}
.shelf-title { font-family: var(--serif); font-size: 1.25rem; color: var(--petrol-dark); }
.shelf-sub { font-family: var(--mono); font-size: 0.72rem; color: var(--rust); letter-spacing: 1px; margin-bottom: 14px; text-transform: uppercase; }
.shelf-list { max-height: 560px; overflow-y: auto; padding-right: 6px; }
.shelf-list::-webkit-scrollbar { width: 8px; }
.shelf-list::-webkit-scrollbar-thumb { background: var(--brass); border-radius: 4px; }
.shelf-item {
    display: block; text-decoration: none; padding: 10px 12px; margin-bottom: 6px;
    border-radius: 8px; border: 1px dashed transparent;
    transition: all 0.15s ease;
}
.shelf-item:hover { background: rgba(191, 77, 40, 0.06); border-color: var(--rust); }
.shelf-name { display: block; font-weight: 700; font-size: 0.92rem; color: var(--petrol-dark); }
.shelf-item:hover .shelf-name { color: var(--rust); }
.shelf-meta { display: block; font-size: 0.75rem; color: var(--ink-soft); margin-top: 2px; }

/* ---------- Videos ---------- */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.video-card {
    background: var(--white); border: 2px solid var(--petrol); border-radius: var(--radius);
    overflow: hidden; box-shadow: 4px 4px 0 rgba(29, 74, 68, 0.14);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.video-card:hover { transform: translateY(-4px); box-shadow: 6px 9px 0 rgba(191, 77, 40, 0.22); }
.video-card img { width: 100%; height: auto; display: block; border-bottom: 2px solid var(--petrol); }
.video-body { padding: 16px 18px 20px; }
.video-kicker {
    font-family: var(--mono); font-size: 0.68rem; letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--rust);
}
.video-title { font-family: var(--serif); font-size: 1.05rem; margin: 6px 0; }
.video-title a { color: var(--petrol-dark); text-decoration: none; }
.video-title a:hover { color: var(--rust); }
.video-sub { font-size: 0.85rem; color: var(--ink-soft); }

/* ---------- Forms ---------- */
.form-card {
    max-width: 520px; margin: 0 auto; background: var(--white);
    border: 2px solid var(--petrol); border-radius: var(--radius);
    padding: 34px; box-shadow: 5px 5px 0 rgba(29, 74, 68, 0.14);
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 700; font-size: 0.9rem; color: var(--petrol-dark); margin-bottom: 6px; }
.form-group input, .form-group textarea {
    width: 100%; padding: 11px 14px; font-family: var(--sans); font-size: 0.95rem;
    border: 1.5px solid var(--line); border-radius: 8px; background: var(--paper);
    color: var(--ink);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: var(--petrol); background: var(--white);
    box-shadow: 0 0 0 3px rgba(29, 74, 68, 0.12);
}
.form-note { margin-top: 18px; text-align: center; font-size: 0.9rem; color: var(--ink-soft); }
.form-note a { color: var(--rust); }

.alert { padding: 13px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 0.92rem; border: 1.5px solid; }
.alert-error { background: #fdf0eb; border-color: var(--rust); color: var(--rust-dark); }
.alert-success { background: #eef5f0; border-color: var(--petrol); color: var(--petrol-dark); }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--petrol-dark); color: var(--paper);
    border-top: 4px solid var(--brass);
    margin-top: 60px;
}
.footer-grid {
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px;
    padding-top: 48px; padding-bottom: 36px;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-brand .brand-text { color: var(--paper); }
.footer-brand .brand-dot { color: var(--brass); }
.footer-tagline { font-size: 0.9rem; opacity: 0.75; margin-top: 12px; max-width: 260px; }
.footer-title {
    font-family: var(--mono); font-size: 0.75rem; letter-spacing: 2px; text-transform: uppercase;
    color: var(--brass); margin-bottom: 14px;
}
.footer-col a {
    display: block; color: var(--paper); text-decoration: none; opacity: 0.82;
    font-size: 0.92rem; margin-bottom: 8px; transition: all 0.15s ease;
}
.footer-col a:hover { opacity: 1; color: var(--brass); padding-left: 5px; }
.footer-bottom {
    display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    border-top: 1px solid rgba(243, 234, 216, 0.2);
    padding-top: 18px; padding-bottom: 22px;
    font-size: 0.85rem; opacity: 0.7;
}
.footer-bottom a { color: var(--paper); }