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

:root {
    --commbank-yellow: #FFD700;
    --commbank-yellow-dark: #E6C200;
    --commbank-black: #1a1a1a;
    --commbank-dark-gray: #333333;
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --border-color: #e0e0e0;
    --bg-light: #f5f5f5;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-light);
    min-height: 100vh;
    padding: 40px 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.container {
    width: 100%;
    max-width: 480px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 40px 35px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

/* Logo */
.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo img {
    max-width: 200px;
    height: auto;
}

.logo-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--commbank-black);
}

.logo-diamond {
    color: var(--commbank-yellow);
    font-size: 2.5rem;
    line-height: 1;
    text-shadow: 2px 2px 0 rgba(0,0,0,0.1);
}

/* Typography - YELLOW heading like CommBank brand */
h1 {
    color: var(--commbank-black);
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 10px;
    line-height: 1.2;
}

.subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 30px;
}

/* File Info Box */
.file-info {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
    background: #fafafa;
}

.info-row {
    display: flex;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.info-row:last-child {
    margin-bottom: 0;
}

.info-label {
    width: 100px;
    color: var(--text-dark);
    font-weight: 600;
}

.info-value {
    color: var(--text-gray);
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

/* Download Button - YELLOW with black text (CommBank style) */
.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--commbank-yellow);
    color: var(--commbank-black);
    text-decoration: none;
    padding: 16px 24px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.2s;
    margin-bottom: 30px;
    border: 2px solid var(--commbank-yellow);
    cursor: pointer;
    width: 100%;
}

.download-btn:hover {
    background: var(--commbank-yellow-dark);
    border-color: var(--commbank-yellow-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}

.btn-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2.5px;
}

/* Instructions */
.instructions {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.instructions h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--commbank-black);
    margin-bottom: 15px;
}

.instructions ol {
    padding-left: 20px;
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.8;
}

.instructions li {
    margin-bottom: 8px;
}

/* Security Notice */
.security-notice {
    margin-bottom: 25px;
}

.security-notice p {
    color: var(--text-gray);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 8px;
}

.security-link {
    color: var(--commbank-black);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    border-bottom: 1px solid var(--commbank-yellow);
}

.security-link:hover {
    color: var(--commbank-yellow-dark);
    border-bottom-color: var(--commbank-black);
}

/* Support Contact */
.support-contact {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.phone-link {
    color: var(--commbank-black);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 2px solid var(--commbank-yellow);
}

.phone-link:hover {
    color: var(--commbank-yellow-dark);
}

/* Admin Page */
.admin-body {
    align-items: center;
}

.admin-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.admin-header {
    text-align: center;
    margin-bottom: 30px;
}

.admin-header h2 {
    color: var(--commbank-black);
    font-size: 1.4rem;
    margin-bottom: 5px;
}

.admin-header p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--commbank-yellow);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
}

.btn-save {
    width: 100%;
    background: var(--commbank-yellow);
    color: var(--commbank-black);
    padding: 16px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-save:hover {
    background: var(--commbank-yellow-dark);
}

.success {
    background: #4CAF50;
    color: white;
    padding: 12px;
    border-radius: 6px;
    margin-top: 15px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.9rem;
}

.back-link:hover {
    color: var(--commbank-black);
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: 20px 15px;
    }
    
    .card {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 1.7rem;
    }
    
    .info-label {
        width: 90px;
    }
}