@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500&display=swap');

/* ===== LIGHT MODE (default) ===== */
:root {
    --bg:        #f0f2f7;
    --surface:   #ffffff;
    --card:      #ffffff;
    --border:    #e2e6ef;
    --accent:    #3b6ff0;
    --accent2:   #17a970;
    --danger:    #d93a4a;
    --warning:   #d97706;
    --text:      #111827;
    --muted:     #6b7280;
    --ph-color:  #17a970;
    --gh-color:  #3b6ff0;
    --shadow:    0 1px 4px rgba(0,0,0,0.08);
    --radius:    10px;
    --font-head: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* ===== DARK MODE ===== */
body.dark-mode {
    --bg:        #0d0f14;
    --surface:   #141720;
    --card:      #1a1e2b;
    --border:    #252a3a;
    --accent:    #4f8ef7;
    --accent2:   #2ecc8f;
    --danger:    #e05260;
    --warning:   #f0a840;
    --text:      #e8ecf4;
    --muted:     #7a819a;
    --ph-color:  #2ecc8f;
    --gh-color:  #4f8ef7;
    --shadow:    0 1px 6px rgba(0,0,0,0.4);
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
    transition: background 0.2s, color 0.2s;
}

h1,h2,h3,h4 { font-family: var(--font-head); font-weight: 700; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }
a  { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.container  { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.page-wrap  { padding: 40px 0; }

/* ===== NAVBAR ===== */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .brand {
    font-family: var(--font-head);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.02em;
}
.navbar nav { display: flex; align-items: center; gap: 4px; }
.navbar nav a {
    color: var(--muted);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.88rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}
.navbar nav a:hover,
.navbar nav a.active {
    background: rgba(59,111,240,0.08);
    color: var(--accent);
    text-decoration: none;
}
.navbar nav .logout-link { color: var(--danger); }
.navbar nav .logout-link:hover { background: rgba(217,58,74,0.08); color: var(--danger); }

/* Dark mode toggle button */
.theme-toggle {
    background: var(--border);
    border: none;
    border-radius: 20px;
    padding: 5px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: background 0.2s;
    margin-left: 8px;
    white-space: nowrap;
}
.theme-toggle:hover { background: var(--accent); color: #fff; }

/* ===== CARDS ===== */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 20px;
}
.card-title {
    font-family: var(--font-head);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 14px;
}

/* ===== FORMS ===== */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text);
    padding: 11px 14px;
    font-size: 0.95rem;
    font-family: var(--font-body);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59,111,240,0.12);
}
.form-control[readonly] { opacity: 0.55; cursor: not-allowed; }
.form-hint { font-size: 0.78rem; color: var(--muted); margin-top: 5px; }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: 7px;
    border: none;
    font-family: var(--font-head);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s, box-shadow 0.2s;
    text-decoration: none;
}
.btn:hover { opacity: 0.88; text-decoration: none; box-shadow: 0 2px 8px rgba(0,0,0,0.12); }
.btn:active { transform: scale(0.97); }
.btn-primary   { background: var(--accent);  color: #fff; }
.btn-success   { background: var(--accent2); color: #fff; }
.btn-danger    { background: var(--danger);  color: #fff; }
.btn-warning   { background: var(--warning); color: #fff; }
.btn-outline   { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-sm        { padding: 6px 14px; font-size: 0.82rem; }
.btn-block     { width: 100%; justify-content: center; }
.btn-ph        { background: var(--ph-color); color: #fff; font-size: 1rem; padding: 14px 30px; }
.btn-gh        { background: var(--gh-color); color: #fff; font-size: 1rem; padding: 14px 30px; }

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.badge-pending   { background: rgba(217,119,6,0.12);   color: var(--warning); }
.badge-matched   { background: rgba(59,111,240,0.12);  color: var(--accent);  }
.badge-confirmed { background: rgba(23,169,112,0.12);  color: var(--accent2); }
.badge-cancelled { background: rgba(217,58,74,0.12);   color: var(--danger);  }
.badge-locked    { background: rgba(107,114,128,0.12); color: var(--muted);   }

body.dark-mode .badge-pending   { background: rgba(240,168,64,0.15);  color: var(--warning); }
body.dark-mode .badge-matched   { background: rgba(79,142,247,0.15);  color: var(--accent);  }
body.dark-mode .badge-confirmed { background: rgba(46,204,143,0.15);  color: var(--accent2); }
body.dark-mode .badge-cancelled { background: rgba(224,82,96,0.15);   color: var(--danger);  }

/* ===== ALERTS ===== */
.alert {
    padding: 13px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.92rem;
    border-left: 3px solid;
}
.alert-success { background: rgba(23,169,112,0.08);  border-color: var(--accent2); color: var(--accent2); }
.alert-error   { background: rgba(217,58,74,0.08);   border-color: var(--danger);  color: var(--danger);  }
.alert-info    { background: rgba(59,111,240,0.08);  border-color: var(--accent);  color: var(--accent);  }
.alert-warning { background: rgba(217,119,6,0.08);   border-color: var(--warning); color: var(--warning); }

body.dark-mode .alert-success { background: rgba(46,204,143,0.1); }
body.dark-mode .alert-error   { background: rgba(224,82,96,0.1);  }
body.dark-mode .alert-info    { background: rgba(79,142,247,0.1); }
body.dark-mode .alert-warning { background: rgba(240,168,64,0.1); }

/* ===== TABLES ===== */
.table-wrap { overflow-x: auto; border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th {
    background: var(--bg);
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(59,111,240,0.03); }
body.dark-mode tr:hover td { background: rgba(255,255,255,0.02); }

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px;
    margin-bottom: 28px;
}
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}
.stat-label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 6px; font-weight: 600; }
.stat-value { font-family: var(--font-head); font-size: 1.55rem; font-weight: 700; }
.stat-ph   { color: var(--ph-color); }
.stat-gh   { color: var(--gh-color); }
.stat-warn { color: var(--warning); }

/* ===== AUTH PAGES ===== */
.auth-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    background: var(--bg);
}
.auth-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    padding: 40px;
    width: 100%;
    max-width: 440px;
}
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-logo span { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.auth-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; }
.auth-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 28px; }

/* ===== GRID/FLEX HELPERS ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.gap-2 { gap: 8px; }
.mt-1 { margin-top: 8px; }  .mt-2 { margin-top: 16px; }  .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; }
.text-muted   { color: var(--muted); }
.text-success { color: var(--accent2); }
.text-danger  { color: var(--danger); }
.text-accent  { color: var(--accent); }
.text-center  { text-align: center; }
.fw-bold { font-weight: 700; }

/* ===== PH/GH ACTION CARDS ===== */
.action-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 28px; }
.action-card {
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    border: 1px solid var(--border);
    background: var(--card);
    box-shadow: var(--shadow);
    transition: transform 0.15s, box-shadow 0.15s;
}
.action-card:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.action-card.ph { border-top: 3px solid var(--ph-color); }
.action-card.gh { border-top: 3px solid var(--gh-color); }
.action-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.action-card p { color: var(--muted); font-size: 0.88rem; margin-bottom: 18px; }
.action-card.gh-locked { opacity: 0.6; }
.action-card.gh-locked .btn-gh { background: var(--muted); cursor: not-allowed; }

/* Timer badge */
.timer-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(217,119,6,0.1);
    color: var(--warning);
    border: 1px solid rgba(217,119,6,0.25);
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 0.78rem;
    font-weight: 700;
}
.unlock-bar-wrap {
    background: var(--border);
    border-radius: 20px;
    height: 8px;
    margin: 8px 0;
}
.unlock-bar {
    height: 100%;
    border-radius: 20px;
    background: var(--accent2);
    transition: width 0.4s;
}

/* ===== ADMIN LAYOUT ===== */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 230px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 24px 0;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.admin-sidebar .brand {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    display: block;
    margin-bottom: 16px;
}
.admin-sidebar a {
    display: block;
    padding: 10px 20px;
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}
.admin-sidebar a:hover, .admin-sidebar a.active {
    background: rgba(59,111,240,0.08);
    color: var(--accent);
    text-decoration: none;
}
.admin-main { flex: 1; padding: 30px; overflow-y: auto; }
.admin-header { margin-bottom: 28px; }
.admin-header h1 { font-size: 1.5rem; }
.admin-header p { color: var(--muted); font-size: 0.9rem; }

.toggle-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 14px;
    width: fit-content;
}
.toggle-label { font-size: 0.82rem; font-weight: 600; color: var(--muted); }
.mode-badge { font-size: 0.75rem; font-weight: 700; padding: 3px 12px; border-radius: 20px; text-transform: uppercase; }
.mode-manual { background: rgba(217,119,6,0.12); color: var(--warning); }
.mode-auto   { background: rgba(23,169,112,0.12); color: var(--accent2); }

/* ===== MODAL ===== */
.modal-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 26px;
    max-width: 440px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.modal-close {
    float: right;
    background: none; border: none;
    color: var(--muted);
    font-size: 1.3rem;
    cursor: pointer;
}

/* ===== REFERRAL ===== */
.level-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--card);
    border: 2px solid;
    border-radius: 30px;
    padding: 6px 18px;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1rem;
}
.ref-link-box {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.ref-link-box input {
    flex: 1; min-width: 0;
    background: none; border: none;
    color: var(--accent);
    font-size: 0.88rem;
    outline: none;
    font-family: monospace;
}

/* ===== HAMBURGER BUTTON ===== */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 7px;
    cursor: pointer;
    padding: 0;
    transition: background 0.15s;
}
.nav-hamburger:hover { background: rgba(59,111,240,0.08); }
.nav-hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
    transform-origin: center;
}
/* Animate to X when open */
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== MOBILE ===== */
@media (max-width: 768px) {
    body { font-size: 14px; }
    h1 { font-size: 1.4rem; }
    .container { padding: 0 16px; }
    .page-wrap { padding: 20px 0; }
    .container.page-wrap { padding: 20px 16px; }

    /* Navbar: brand + hamburger on one row, nav slides down */
    .navbar {
        height: auto;
        flex-wrap: wrap;
        padding: 0 16px;
        gap: 0;
        align-items: stretch;
    }
    .navbar-top {
        display: flex;
        width: 100%;
        align-items: center;
        justify-content: space-between;
        height: 56px;
    }
    .navbar .brand { font-size: 1.05rem; }
    .nav-hamburger { display: flex; }

    /* Nav links: hidden by default, slide open */
    .navbar nav {
        display: flex;
        flex-direction: column;
        width: 100%;
        overflow: hidden;
        max-height: 0;
        opacity: 0;
        transition: max-height 0.3s ease, opacity 0.25s ease;
        border-top: 0px solid var(--border);
        padding: 0;
        gap: 2px;
    }
    .navbar nav.nav-open {
        max-height: 420px;
        opacity: 1;
        border-top: 1px solid var(--border);
        padding: 8px 0 12px;
    }
    .navbar nav a {
        padding: 10px 14px;
        font-size: 0.92rem;
        border-radius: 6px;
        width: 100%;
    }
    .theme-toggle {
        width: 100%;
        justify-content: center;
        margin-left: 0;
        margin-top: 4px;
        border-radius: 6px;
    }

    .card { padding: 16px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-value { font-size: 1.2rem; }
    .grid-2 { grid-template-columns: 1fr; }
    .action-row { grid-template-columns: 1fr; gap: 14px; }
    .action-card { padding: 20px; }

    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    table { min-width: 520px; }
    th, td { padding: 9px 10px; font-size: 0.8rem; }

    .auth-wrap { padding: 16px; }
    .auth-box { padding: 24px 18px; }

    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; height: auto; position: relative; }
    .admin-sidebar a { padding: 8px 16px; font-size: 0.82rem; }
    .admin-main { padding: 16px; }
    .admin-header .flex-between { flex-direction: column; align-items: flex-start; }
    .toggle-wrap { width: 100%; }
}
@media (max-width: 420px) {
    .stats-grid { grid-template-columns: 1fr; }
}

img, table { max-width: 100%; }
html, body { overflow-x: hidden; }