:root {
    --primary: #2f6f4e;
    --primary-dark: #234f38;
    --income: #2f6f4e;
    --expense: #b3402a;
    --bg: #f4f6f5;
    --card-bg: #ffffff;
    --border: #e1e5e2;
    --text: #1f2a24;
    --muted: #667a6e;
    --radius: 10px;
}

* { box-sizing: border-box; }

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    overflow-x: hidden;
    width: 100%;
}

img, svg { max-width: 100%; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Topbar */
.topbar {
    background: var(--primary-dark);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}
.topbar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    position: relative;
}
.brand {
    font-weight: 700;
    font-size: 1.15rem;
    color: #fff;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
}
.brand:hover { text-decoration: none; opacity: 0.9; }
.brand-logo {
    height: 32px;
    width: 32px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.auth-logo {
    display: block;
    height: 64px;
    width: 64px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 12px;
}

.main-nav {
    display: flex;
    align-items: center;
}
.main-nav a {
    color: #dfe9e3;
    margin-right: 18px;
    font-weight: 500;
    padding: 6px 0;
}
.main-nav a:hover { color: #fff; text-decoration: none; }
.main-nav a.active { color: #fff; border-bottom: 2px solid #fff; }

.nav-user-area { display: none; }

.user-area {
    display: flex;
    align-items: center;
    gap: 14px;
}
.user-name { color: #cfe0d6; font-size: 0.9rem; }
.btn-logout {
    background: rgba(255,255,255,0.15);
    color: #fff;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    white-space: nowrap;
}
.btn-logout:hover { background: rgba(255,255,255,0.25); text-decoration: none; }

/* Hamburger toggle button - hidden on desktop */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}
.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); }

/* Layout */
.page-wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

.dash-head { margin-bottom: 18px; }
.dash-head h1 { margin: 0 0 4px; }
.dash-date { color: var(--muted); margin: 0; }

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.card-label { color: var(--muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
.card-value { font-size: 1.7rem; font-weight: 700; }
.card-income .card-value { color: var(--income); }
.card-expense .card-value { color: var(--expense); }
.card-profit .card-value { color: var(--primary); }
.card-loss .card-value { color: var(--expense); }

/* Quick actions */
.quick-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 26px;
    flex-wrap: wrap;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-outline {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; }
.btn-secondary { background: #435f4f; color: #fff; }
.btn-secondary:hover { background: #324636; text-decoration: none; }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; text-decoration: none; }

/* Panels / two-column layout */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (max-width: 800px) {
    .two-col { grid-template-columns: 1fr; }
}
.panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}
.panel h2 { margin-top: 0; font-size: 1.1rem; }
.panel-link { display: inline-block; margin-top: 10px; font-size: 0.9rem; }

/* Forms */
.stack-form label { display: block; margin: 12px 0 4px; font-size: 0.9rem; font-weight: 600; }
.stack-form input, .stack-form select {
    width: 100%;
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
}
.stack-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.stack-form button { margin-top: 16px; }

.filter-form {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}
.filter-form label { display: block; margin-bottom: 4px; font-size: 0.9rem; font-weight: 600; }
.filter-form select, .filter-form input {
    padding: 9px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 0.92rem;
}
.data-table th, .data-table td {
    text-align: left;
    padding: 8px 6px;
    border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--muted); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; }

.empty-state { color: var(--muted); font-style: italic; }
.link-danger { color: var(--expense); font-size: 0.85rem; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; }
.alert ul { margin: 0; padding-left: 18px; }
.alert-error { background: #fbe4e0; color: #7a2416; border: 1px solid #f0b5a9; }
.alert-success { background: #e3f1e7; color: #1f5c37; border: 1px solid #b6ddc2; }

/* Auth pages */
.auth-wrap {
    display: flex;
    justify-content: center;
    padding: 40px 0;
}
.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.auth-card h1 { margin: 0 0 4px; font-size: 1.3rem; color: var(--primary-dark); }
.auth-card h2 { margin: 0 0 18px; font-size: 1rem; color: var(--muted); font-weight: 500; }
.auth-card label { display: block; margin: 12px 0 4px; font-size: 0.9rem; font-weight: 600; }
.auth-card input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
}
.auth-card button { width: 100%; margin-top: 18px; }
.auth-switch { margin-top: 16px; font-size: 0.9rem; text-align: center; color: var(--muted); }

/* Footer */
.site-footer {
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    padding: 20px;
}

/* Make wide tables scroll instead of breaking layout on narrow screens */
.data-table-wrap {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* =====================================================
   RESPONSIVE BREAKPOINTS
   ===================================================== */

/* Tablets and small laptops */
@media (max-width: 900px) {
    .page-wrap { padding: 20px 16px 50px; }
    .cards { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
}

/* Tablets / large phones - collapse nav into hamburger menu */
@media (max-width: 800px) {
    .two-col { grid-template-columns: 1fr; }

    .nav-toggle { display: flex; }

    .main-nav {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        background: var(--primary-dark);
        order: 3;
        padding-top: 6px;
    }
    .main-nav.open { display: flex; }
    .main-nav a {
        margin-right: 0;
        padding: 12px 4px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .main-nav a.active { border-bottom: 1px solid rgba(255,255,255,0.1); border-left: 3px solid #fff; padding-left: 8px; }

    .nav-user-area {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 4px 6px;
        gap: 10px;
    }

    /* Desktop-only user area hidden once hamburger takes over */
    .topbar .user-area { display: none; }

    .topbar-inner { padding: 12px 16px; }
}

/* Phones */
@media (max-width: 600px) {
    .page-wrap { padding: 16px 14px 40px; }

    .dash-head h1 { font-size: 1.4rem; }
    .dash-head h2 { font-size: 1.1rem; }

    .cards { grid-template-columns: 1fr; gap: 12px; }
    .card { padding: 16px; }
    .card-value { font-size: 1.4rem; }

    .quick-actions { flex-direction: column; }
    .quick-actions a { text-align: center; width: 100%; }

    .panel { padding: 16px; }

    .stack-form .form-row { grid-template-columns: 1fr; gap: 0; }

    .filter-form { flex-direction: column; align-items: stretch; gap: 12px; }
    .filter-form > div { width: 100%; }
    .filter-form select, .filter-form input, .filter-form button { width: 100%; }

    /* Tables become horizontally scrollable, and shed padding to fit */
    .data-table { font-size: 0.85rem; min-width: 480px; }

    .auth-wrap { padding: 24px 0; }
    .auth-card { padding: 22px; max-width: 100%; }

    .btn-primary, .btn-secondary, .btn-outline { width: 100%; text-align: center; }
    .quick-actions .btn-primary,
    .quick-actions .btn-secondary,
    .quick-actions .btn-outline { display: block; }
}

/* Small / older phones */
@media (max-width: 380px) {
    .brand { font-size: 1rem; }
    .card-value { font-size: 1.25rem; }
    .auth-card h1 { font-size: 1.15rem; }
    .data-table { min-width: 420px; font-size: 0.8rem; }
    .data-table th, .data-table td { padding: 6px 4px; }
}

/* Respect notches / safe areas on modern phones */
@supports (padding: max(0px)) {
    .topbar-inner {
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }
    .page-wrap {
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }
}