:root {
    --blue: #2f3b7a;
    --blue-dark: #2c3570;
    --gold: #d2a23c;
    --bg: #efefef;
    --card: #ffffff;
    --text: #2a2a2a;
    --red: #c62828;
    --green: #2e7d32;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Montserrat", sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}


/* --- Login --- */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--blue) 0%, #1a2350 100%);
}

.login-container {
    background: var(--card);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo {
    width: 200px;
    margin-bottom: 20px;
}

.login-container h1 {
    font-size: 22px;
    margin: 0 0 4px;
    color: var(--blue);
}

.login-desc {
    font-size: 14px;
    color: #666;
    margin: 0 0 24px;
}

.login-form {
    text-align: left;
}

.login-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #555;
}

.login-form input {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    margin-bottom: 16px;
    transition: border-color 0.3s;
}

.login-form input:focus {
    border-color: var(--blue);
    outline: none;
}

.login-form button {
    width: 100%;
    padding: 12px;
    background: var(--blue);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s;
}

.login-form button:hover {
    background: var(--blue-dark);
}

/* --- Dashboard --- */
.dash-header {
    background: var(--blue);
    color: #fff;
    padding: 16px 0;
    border-bottom: 4px solid var(--red);
}

.dash-header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.dash-logo {
    height: 28px;
    width: auto;
}

.dash-header h1 {
    margin: 0;
    font-size: 20px;
    flex: 1;
}

.dash-user {
    font-size: 13px;
    opacity: 0.8;
    background: rgba(255,255,255,0.15);
    padding: 4px 12px;
    border-radius: 20px;
}

.btn-logout {
    color: #fff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 6px;
    transition: 0.3s;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
}

.dash-main {
    flex: 1;
    max-width: 1100px;
    margin: 30px auto;
    padding: 0 20px;
}

.dash-intro p {
    margin: 0 0 6px;
    font-size: 15px;
    color: #555;
}

.dash-note {
    font-size: 13px;
    color: #888;
}

.dash-note code {
    background: #eee;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 12px;
}

/* --- Messages --- */
.msg {
    padding: 12px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    margin: 20px 0;
}

.msg-success {
    background: #e8f5e9;
    color: var(--green);
    border: 1px solid #c8e6c9;
}

.msg-error {
    background: #ffebee;
    color: var(--red);
    border: 1px solid #ffcdd2;
}

/* --- Grid --- */
.dash-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 10px;
}

@media (max-width: 700px) {
    .dash-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Cards --- */
.dash-card {
    background: var(--card);
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.dash-card h2 {
    margin: 0 0 4px;
    font-size: 18px;
    color: var(--blue);
}

.card-info {
    margin: 4px 0 18px;
    font-size: 14px;
    color: #666;
}

.card-desc {
    margin: 16px 0 0;
    font-size: 13px;
    color: #888;
    line-height: 1.5;
}

.card-desc code {
    background: #eee;
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 12px;
}

/* --- Upload forms --- */
.upload-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.file-label {
    display: block;
    padding: 14px;
    border: 2px dashed #ccc;
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: 0.3s;
    font-size: 14px;
    color: #888;
}

.file-label:hover {
    border-color: var(--blue);
    background: #f8f9ff;
}

.file-label input {
    display: none;
}

.btn-upload {
    padding: 10px;
    background: var(--blue);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-upload:hover {
    background: var(--blue-dark);
}

/* --- Image list --- */
.img-list-details {
    margin-top: 16px;
    font-size: 13px;
}

.img-list-details summary {
    cursor: pointer;
    color: var(--blue);
    font-weight: 600;
}

.img-list {
    margin: 10px 0 0;
    padding-left: 20px;
    max-height: 250px;
    overflow-y: auto;
}

.img-list li {
    margin-bottom: 4px;
}

.img-list code {
    font-size: 12px;
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
}

/* --- Footer --- */
.dash-footer {
    background: #e0e0e0;
    padding: 30px 0;
    margin-top: 50px;
    border-top: 1px solid #ccc;
}

.dash-footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.dash-footer p {
    margin: 0;
    font-size: 14px;
    color: #666;
    text-align: center;
}

/* --- error styling for messages --- */
.error-container {
    text-align: center;
    padding: 40px;
    color: var(--red);
}