/* VARIABLES & BASE */
:root {
    --tpu-black: #000000;
    --tpu-white: #ffffff;
    --tpu-red: #D10000;
    --tpu-border: 1px solid #000;
    --tpu-serif: "Georgia", "Times New Roman", Times, serif;
    --tpu-sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

/* MODAL / POPUP STYLES (NEW) */
.tpu-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9); /* White fade instead of dark dim */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.tpu-modal {
    background: var(--tpu-white);
    border: 2px solid var(--tpu-black);
    padding: 40px;
    max-width: 500px;
    text-align: center;
    box-shadow: 10px 10px 0px rgba(0,0,0,0.1); /* Sharp hard shadow */
}

.tpu-modal h3 {
    font-family: var(--tpu-serif);
    font-size: 28px;
    margin-top: 0;
    margin-bottom: 20px;
}

.tpu-modal p {
    font-family: var(--tpu-sans);
    font-size: 16px;
    margin-bottom: 30px;
    line-height: 1.5;
}

/* CONTAINERS */
.tpu-auth-container {
    max-width: 400px;
    margin: 50px auto;
    border: var(--tpu-border);
    padding: 30px;
    background: var(--tpu-white);
}

.tpu-dashboard-wrapper {
    display: flex;
    max-width: 1200px;
    margin: 30px auto;
    border: var(--tpu-border);
    min-height: 600px;
}

/* AUTH TABS */
.tpu-auth-tabs {
    display: flex;
    border-bottom: var(--tpu-border);
    margin-bottom: 20px;
}

.tpu-tab-btn {
    flex: 1;
    background: none;
    border: none;
    padding: 10px;
    font-family: var(--tpu-sans);
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    opacity: 0.5;
    transition: 0.2s;
}

.tpu-tab-btn.active {
    opacity: 1;
    border-bottom: 3px solid var(--tpu-black);
}

.tpu-form { display: none; }
.tpu-form.active { display: block; }

/* TYPOGRAPHY & FORMS */
.tpu-header { font-family: var(--tpu-serif); font-size: 28px; margin-bottom: 5px; color: var(--tpu-black); }
.tpu-subhead { font-family: var(--tpu-sans); font-size: 14px; color: #555; margin-bottom: 25px; }

.tpu-input-group { margin-bottom: 20px; }
.tpu-input-group label { display: block; font-family: var(--tpu-sans); font-size: 12px; font-weight: bold; text-transform: uppercase; margin-bottom: 5px; }
.tpu-input-group input[type="text"],
.tpu-input-group input[type="email"],
.tpu-input-group input[type="password"],
.tpu-input-group select { width: 100%; padding: 10px; border: 1px solid #ccc; border-radius: 0; font-family: var(--tpu-serif); font-size: 16px; box-sizing: border-box; }
.tpu-input-group input:focus { border: 1px solid var(--tpu-black); outline: none; }

.tpu-btn { width: 100%; background: var(--tpu-black); color: var(--tpu-white); padding: 12px; border: none; font-family: var(--tpu-sans); font-weight: bold; text-transform: uppercase; letter-spacing: 1px; cursor: pointer; transition: background 0.3s; }
.tpu-btn:hover { background: #333; }

/* ALERTS */
.tpu-alert { padding: 10px; margin-bottom: 15px; font-family: var(--tpu-sans); font-size: 13px; border-left: 4px solid var(--tpu-red); background: #fff0f0; }

/* SIDEBAR & DASHBOARD */
.tpu-sidebar { width: 250px; border-right: var(--tpu-border); padding: 20px; background: #f9f9f9; }
.tpu-user-card { text-align: center; margin-bottom: 30px; }
.tpu-avatar { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; border: 2px solid var(--tpu-black); margin-bottom: 10px; }
.tpu-username { display: block; font-family: var(--tpu-serif); font-weight: bold; font-size: 18px; }
.tpu-nav-tabs li { list-style: none; padding: 10px 15px; font-family: var(--tpu-sans); cursor: pointer; border-left: 3px solid transparent; transition: 0.2s; margin-bottom: 5px; }
.tpu-nav-tabs li:hover { background: #eee; }
.tpu-nav-tabs li.active { border-left: 3px solid var(--tpu-red); font-weight: bold; background: #fff; }
.tpu-logout { display: block; margin-top: 30px; font-family: var(--tpu-sans); color: var(--tpu-red); text-decoration: none; font-size: 13px; text-transform: uppercase; }

.tpu-content { flex: 1; padding: 40px; }
.tpu-tab-content { display: none; }
.tpu-tab-content.active { display: block; }
.tpu-content h3 { font-family: var(--tpu-serif); font-size: 24px; border-bottom: 2px solid var(--tpu-black); padding-bottom: 10px; margin-bottom: 30px; }
.tpu-input-row { display: flex; gap: 20px; } .tpu-input-row .tpu-input-group { flex: 1; }

.tpu-table { width: 100%; border-collapse: collapse; font-family: var(--tpu-sans); }
.tpu-table th { text-align: left; border-bottom: 2px solid var(--tpu-black); padding: 10px; font-weight: bold; text-transform: uppercase; font-size: 12px; }
.tpu-table td { border-bottom: 1px solid #ddd; padding: 15px 10px; }
.tpu-badge { padding: 4px 8px; font-size: 10px; text-transform: uppercase; font-weight: bold; border-radius: 2px; }
.status-green { background: #e6ffe6; color: #006600; border: 1px solid #006600; }
.status-orange { background: #fff5e6; color: #cc6600; border: 1px solid #cc6600; }
.status-red { background: #ffe6e6; color: var(--tpu-red); border: 1px solid var(--tpu-red); }