/* ============================================
   Lowcademy Logistics Lab - Main Stylesheet
   Theme: Matches labs.lowcademy.com
   ============================================ */

:root {
    --navy:      #0d1b2a;
    --navy-2:    #112240;
    --navy-3:    #1a2f4a;
    --cyan:      #00d4ff;
    --cyan-dim:  #00b8d9;
    --white:     #ffffff;
    --gray-100:  #f5f7fa;
    --gray-200:  #e8ecf0;
    --gray-400:  #8a9ab0;
    --gray-600:  #4a5568;
    --gray-800:  #2d3748;
    --green:     #10b981;
    --orange:    #f59e0b;
    --red:       #ef4444;
    --border:    #e2e8f0;
    --shadow:    0 2px 12px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 24px rgba(0,0,0,0.12);
    --radius:    10px;
    --font-body: 'DM Sans', sans-serif;
    --font-mono: 'Space Mono', monospace;
}

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

body {
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--white);
    font-size: 15px;
    line-height: 1.6;
}

a { color: var(--cyan-dim); text-decoration: none; }
a:hover { color: var(--cyan); }

/* ---- NAV ---- */
.nav {
    background: var(--navy);
    border-bottom: 3px solid var(--cyan);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    position: relative;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    z-index: 2;
}
.nav-brand-icon {
    width: 36px;
    height: 36px;
    background: var(--navy-3);
    border: 1px solid rgba(0,212,255,0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}
.nav-brand-text strong {
    display: block;
    color: var(--white);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.nav-brand-text span {
    display: block;
    color: var(--cyan);
    font-size: 10px;
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}
.nav-links a {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); }
.nav-cta {
    background: transparent;
    border: 1.5px solid var(--cyan);
    color: var(--cyan) !important;
    padding: 7px 16px;
    border-radius: 6px;
    font-size: 13px !important;
    font-weight: 600 !important;
    transition: all 0.2s !important;
}
.nav-cta:hover {
    background: var(--cyan) !important;
    color: var(--navy) !important;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 2;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all 0.25s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--navy-2);
        border-top: 1px solid rgba(255,255,255,0.08);
        padding: 12px 0 16px;
        z-index: 99;
    }
    .nav-links.open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 12px 24px; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,0.04); }
    .nav-cta { margin: 12px 24px 0; display: inline-block; }
}

/* ---- HERO ---- */
.hero {
    background: var(--navy);
    padding: 64px 24px 56px;
    text-align: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.3);
    color: var(--cyan);
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 5px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}
.hero h1 {
    color: var(--white);
    font-size: 38px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.hero h1 span { color: var(--cyan); }
.hero p {
    color: rgba(255,255,255,0.65);
    font-size: 16px;
    max-width: 560px;
    margin: 0 auto 32px;
}
.hero-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
    font-family: var(--font-body);
}
.btn-primary {
    background: var(--cyan);
    color: var(--navy);
}
.btn-primary:hover {
    background: var(--cyan-dim);
    color: var(--navy);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,212,255,0.3);
}
.btn-outline {
    background: transparent;
    border: 1.5px solid var(--cyan);
    color: var(--cyan);
}
.btn-outline:hover {
    background: rgba(0,212,255,0.08);
    color: var(--cyan);
}
.btn-dark {
    background: var(--navy-3);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.1);
}
.btn-dark:hover {
    background: var(--navy-2);
    color: var(--white);
}
.btn-sm {
    padding: 7px 16px;
    font-size: 13px;
}
.btn-block { width: 100%; justify-content: center; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

/* ---- CONTAINER ---- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}
.container-sm {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- SECTION ---- */
.section { padding: 56px 0; }
.section-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cyan-dim);
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.section-label::before {
    content: '';
    display: block;
    width: 28px;
    height: 2px;
    background: var(--cyan);
}
.section h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}
.section-sub {
    color: var(--gray-600);
    font-size: 15px;
    max-width: 560px;
    margin-bottom: 36px;
}

/* ---- CARDS ---- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 32px;
}
.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.card-icon { font-size: 28px; margin-bottom: 16px; }
.card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 8px;
}
.card p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ---- PROVIDER CARDS ---- */
.provider-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
}
@media (max-width: 600px) { .provider-cards { grid-template-columns: 1fr; } }

.provider-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    transition: all 0.2s;
}
.provider-card:hover {
    border-color: var(--cyan);
    box-shadow: 0 4px 20px rgba(0,212,255,0.12);
}
.provider-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}
.badge-zedex { background: rgba(0,212,255,0.1); color: var(--cyan-dim); border: 1px solid rgba(0,212,255,0.25); }
.badge-universal { background: rgba(16,185,129,0.1); color: #059669; border: 1px solid rgba(16,185,129,0.25); }

.provider-card h3 { font-size: 18px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.provider-card p { font-size: 13px; color: var(--gray-600); margin-bottom: 20px; }

/* ---- FORMS ---- */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-800);
    margin-bottom: 6px;
}
.form-label span { color: var(--red); margin-left: 3px; }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-body);
    color: var(--gray-800);
    background: var(--white);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus {
    outline: none;
    border-color: var(--cyan-dim);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.form-hint { font-size: 12px; color: var(--gray-400); margin-top: 4px; }

/* ---- ALERT BOX ---- */
.alert {
    padding: 14px 18px;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.alert-error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert-info { background: #f0f9ff; border: 1px solid #bae6fd; color: #075985; }

/* ---- CREDENTIALS BOX ---- */
.credentials-box {
    background: var(--navy);
    border-radius: var(--radius);
    padding: 32px;
    color: var(--white);
}
.credentials-box h3 {
    color: var(--cyan);
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 20px;
}
.cred-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.cred-row:last-child { border-bottom: none; }
.cred-label { font-size: 12px; color: rgba(255,255,255,0.5); font-family: var(--font-mono); }
.cred-value {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--cyan);
    word-break: break-all;
    text-align: right;
    max-width: 70%;
}
.cred-warning {
    background: rgba(245,158,11,0.15);
    border: 1px solid rgba(245,158,11,0.3);
    color: #fcd34d;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 13px;
    margin-top: 20px;
}

/* ---- CODE BLOCK ---- */
.code-block {
    background: var(--navy);
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
    margin: 16px 0;
}
.code-block pre {
    font-family: var(--font-mono);
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    line-height: 1.7;
    white-space: pre;
}
.code-block .key   { color: #7dd3fc; }
.code-block .val   { color: #86efac; }
.code-block .str   { color: #fca5a5; }
.code-block .num   { color: #fdba74; }

/* ---- TABLE ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
    background: var(--gray-100);
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--gray-800);
    vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--gray-100); }
.mono { font-family: var(--font-mono); font-size: 12px; }

/* ---- STATUS BADGE ---- */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-mono);
}
.status-NEW            { background: #f1f5f9; color: #475569; }
.status-IN_PROCESS     { background: #eff6ff; color: #1d4ed8; }
.status-SENT_TO_FACILITY { background: #f5f3ff; color: #6d28d9; }
.status-IN_TRANSIT     { background: #ecfdf5; color: #065f46; }
.status-HOLD           { background: #fff7ed; color: #c2410c; }
.status-DELAYED        { background: #fef9c3; color: #854d0e; }
.status-DELIVERED      { background: #dcfce7; color: #15803d; }
.status-FAILED         { background: #fee2e2; color: #991b1b; }

/* ---- API ENDPOINT ---- */
.endpoint {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    overflow: hidden;
}
.endpoint-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--gray-100);
    cursor: pointer;
    user-select: none;
}
.endpoint-header:hover { background: var(--gray-200); }
.method-badge {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.05em;
}
.method-post { background: #dbeafe; color: #1d4ed8; }
.method-get  { background: #dcfce7; color: #15803d; }
.endpoint-url {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--navy);
}
.endpoint-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    margin-left: auto;
}
.endpoint-body { padding: 20px; display: none; }
.endpoint-body.open { display: block; }

/* ---- PAGE HEADER ---- */
.page-header {
    background: var(--navy-2);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding: 36px 0 32px;
}
.page-header h1 {
    color: var(--white);
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 6px;
}
.page-header p {
    color: rgba(255,255,255,0.55);
    font-size: 14px;
}

/* ---- TABS ---- */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 28px; }
.tab-btn {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    margin-bottom: -2px;
    font-family: var(--font-body);
    transition: all 0.2s;
}
.tab-btn.active { color: var(--navy); border-bottom-color: var(--cyan); }
.tab-btn:hover { color: var(--navy); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ---- FORM CARD ---- */
.form-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}
.form-card h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 6px;
}
.form-card .subtitle {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 24px;
}
.form-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ---- FOOTER ---- */
footer {
    background: var(--navy);
    color: rgba(255,255,255,0.45);
    text-align: center;
    padding: 28px 24px;
    font-size: 13px;
    margin-top: 60px;
}
footer a { color: var(--cyan); }

/* ---- ADMIN ---- */
.admin-layout { display: flex; min-height: calc(100vh - 64px); }
.admin-sidebar {
    width: 220px;
    background: var(--navy-2);
    border-right: 1px solid rgba(255,255,255,0.06);
    padding: 24px 0;
    flex-shrink: 0;
}
.sidebar-label {
    font-size: 10px;
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.3);
    padding: 0 20px 8px;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: rgba(255,255,255,0.65);
    font-size: 14px;
    text-decoration: none;
    transition: all 0.15s;
}
.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.06);
    color: var(--white);
}
.sidebar-nav a.active { border-left: 2px solid var(--cyan); }
.admin-content { flex: 1; padding: 32px; background: var(--gray-100); }
.admin-content h1 { font-size: 22px; font-weight: 700; color: var(--navy); margin-bottom: 24px; }

/* ---- MISC ---- */
.text-center { text-align: center; }
.text-mono { font-family: var(--font-mono); }
.text-cyan { color: var(--cyan-dim); }
.text-muted { color: var(--gray-400); }
.mt-4  { margin-top: 16px; }
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.mb-4  { margin-bottom: 16px; }
.mb-6  { margin-bottom: 24px; }
.gap-12 { gap: 12px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .grid-2 { grid-template-columns: 1fr; } }

.copy-btn {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7);
    border-radius: 4px;
    padding: 3px 10px;
    font-size: 11px;
    cursor: pointer;
    font-family: var(--font-mono);
    transition: all 0.2s;
    margin-left: 8px;
}
.copy-btn:hover { background: rgba(255,255,255,0.15); color: var(--white); }

.step-list { counter-reset: step; }
.step-item {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    align-items: flex-start;
}
.step-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: var(--cyan);
    color: var(--navy);
    border-radius: 50%;
    font-weight: 700;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}
.step-content h4 { font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 4px; }
.step-content p { font-size: 13px; color: var(--gray-600); }

/* ============================================
   MOBILE RESPONSIVE - Tablet & Mobile
   ============================================ */

/* Hero */
@media (max-width: 768px) {
    .hero { padding: 40px 20px 36px; }
    .hero h1 { font-size: 26px; }
    .hero p { font-size: 14px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions .btn { width: 100%; max-width: 300px; justify-content: center; }
}

/* Section */
@media (max-width: 768px) {
    .section { padding: 36px 0; }
    .section h2 { font-size: 22px; }
    .container { padding: 0 16px; }
    .container-sm { padding: 0 16px; }
}

/* Cards grid */
@media (max-width: 768px) {
    .cards-grid { grid-template-columns: 1fr; gap: 14px; }
    .card { padding: 20px; }
}

/* Provider cards */
@media (max-width: 640px) {
    .provider-cards { grid-template-columns: 1fr; }
    .provider-card { padding: 24px 20px; }
}

/* Form card */
@media (max-width: 600px) {
    .form-card { padding: 20px 16px; }
    .grid-2 { grid-template-columns: 1fr; }
}

/* Credentials box */
@media (max-width: 600px) {
    .credentials-box { padding: 20px 16px; }
    .cred-row { flex-direction: column; align-items: flex-start; gap: 4px; }
    .cred-value { text-align: left; max-width: 100%; font-size: 11px; }
}

/* Page header */
@media (max-width: 768px) {
    .page-header { padding: 24px 0 20px; }
    .page-header h1 { font-size: 20px; }
}

/* How it works steps */
@media (max-width: 768px) {
    .how-it-works-grid { grid-template-columns: 1fr !important; gap: 32px !important; }
}

/* API docs */
@media (max-width: 768px) {
    .endpoint-header { flex-wrap: wrap; gap: 8px; }
    .endpoint-title { display: none; }
    .api-two-col { grid-template-columns: 1fr !important; }
    .code-block { padding: 14px; }
    .code-block pre { font-size: 11px; }
}

/* Statuses page */
@media (max-width: 768px) {
    .statuses-grid { grid-template-columns: 1fr !important; }
}

/* Admin / partner dashboard */
@media (max-width: 768px) {
    .dash-top-bar { height: auto !important; padding: 12px 16px !important; flex-direction: column !important; align-items: flex-start !important; gap: 10px !important; }
    .dash-grid { grid-template-columns: 1fr !important; }
    .dash-content { padding: 16px !important; }
    .partner-search-row { flex-direction: column !important; }
    .partner-search-row input { max-width: 100% !important; }
}

/* Table - make scrollable on mobile */
@media (max-width: 768px) {
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    table { min-width: 600px; }
    th, td { padding: 10px 12px; font-size: 13px; }
}

/* Tabs */
@media (max-width: 480px) {
    .tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .tab-btn { white-space: nowrap; padding: 10px 14px; font-size: 13px; }
}

/* Admin sidebar - collapse on mobile */
@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; display: flex; flex-wrap: wrap; gap: 4px; padding: 12px 16px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .sidebar-label { display: none; }
    .sidebar-nav { display: flex; flex-wrap: wrap; gap: 4px; }
    .sidebar-nav a { padding: 8px 14px; border-radius: 6px; font-size: 13px; border-left: none !important; }
    .sidebar-nav a.active { background: rgba(0,212,255,0.15); color: var(--cyan); }
    .admin-content { padding: 20px 16px; }
    .admin-content h1 { font-size: 18px; }
}

/* Step items responsive */
@media (max-width: 600px) {
    .step-item { gap: 12px; }
    .step-content h4 { font-size: 13px; }
}

/* Footer */
@media (max-width: 600px) {
    footer { padding: 20px 16px; font-size: 12px; }
}

/* Buttons */
@media (max-width: 480px) {
    .btn { padding: 10px 18px; font-size: 13px; }
    .btn-sm { padding: 7px 14px; font-size: 12px; }
}

/* Modal */
@media (max-width: 600px) {
    #updateModal > div { padding: 20px 16px; margin: 12px; }
}