/* ===== Reset & Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f2f5;
}

/* ===== Colors ===== */
:root {
    --primary: #29649f;
    --primary-dark: #1e4d7b;
    --primary-light: #3a7bc8;
    --text-dark: #2c3e50;
    --text-muted: #888;
    --text-body: #333;
    --bg-card: #fff;
    --bg-input: #fafafa;
    --border: #e0e0e0;
    --border-light: #f0f0f0;
    --error: #e74c3c;
    --success: #2e7d32;
    --warning: #e65100;
}

/* ===== Gradient Background (auth pages) ===== */
.bg-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--primary-light) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    padding: 48px 40px;
    width: 100%;
    max-width: 440px;
    text-align: center;
}

/* ===== Typography ===== */
h1 { color: var(--text-dark); font-size: 26px; font-weight: 700; margin-bottom: 8px; }
h2 { font-size: 16px; color: var(--text-dark); margin-bottom: 16px; }
h3 { font-size: 18px; color: var(--text-dark); margin-bottom: 20px; }
.subtitle { color: var(--text-muted); font-size: 14px; margin-bottom: 32px; }

/* ===== Form Elements ===== */
.form-group { margin-bottom: 24px; }
.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 14px;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.25s ease;
    outline: none;
    background: var(--bg-input);
}
.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px rgba(41,100,159,0.1);
}
.form-group input::placeholder { color: #bbb; }

/* ===== Buttons ===== */
.btn-primary {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    letter-spacing: 0.3px;
}
.btn-primary:hover { opacity: 0.9; }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== Badges ===== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.badge-green { background: #e8f5e9; color: var(--success); }
.badge-red { background: #ffeef0; color: #c62828; }
.badge-pending { background: #fff3e0; color: var(--warning); }
.badge-approved { background: #e8f5e9; color: var(--success); }
.badge-rejected { background: #ffeef0; color: #c62828; }
.badge-completed { background: #e3f2fd; color: #1565c0; }

/* ===== Messages ===== */
.error-msg {
    background: #fff0f0;
    color: var(--error);
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    border: 1px solid #fdd;
}
.msg-box { padding: 12px; border-radius: 8px; font-size: 14px; margin-top: 12px; text-align: center; }
.msg-success { background: #e8f5e9; color: var(--success); }
.msg-error { background: #ffeef0; color: #c62828; }
.empty-state { text-align: center; color: #aaa; padding: 40px; font-size: 14px; }

/* ===== Topbar ===== */
.topbar {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    padding: 12px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar h1 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 0; }
.topbar-logo { display: flex; align-items: center; }
.topbar-logo img { height: 36px; object-fit: contain; }
.topbar-links a,
.btn-logout {
    padding: 8px 18px;
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    font-size: 13px;
    margin-left: 8px;
}
.topbar-links a:hover,
.btn-logout:hover { background: rgba(255,255,255,0.3); }

/* ===== Container ===== */
.container { max-width: 900px; margin: 32px auto; padding: 0 20px; }

/* ===== Tables ===== */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 10px 12px; font-size: 13px; color: var(--text-muted); border-bottom: 2px solid var(--border-light); font-weight: 600; }
td { padding: 10px 12px; font-size: 14px; color: var(--text-body); border-bottom: 1px solid #f5f5f5; }

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .topbar { padding: 14px 16px; }
    .container { padding: 0 12px; }
    .card { margin: 20px; padding: 32px 24px; }
    h1 { font-size: 22px; }
    table { font-size: 13px; }
    th, td { padding: 8px 6px; }
}