/* Global Styles */
:root {
    --primary-color: #000000;
    --secondary-color: #333333;
    --accent-color: #f8c94e;  /* Keeping the brand yellow/gold as accent */
    --background-color: #ffffff;
    --surface-color: #f8f9fa;
    --border-color: #e0e0e0;
    --text-color: #333333;
    --text-muted: #666666;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --radius: 12px;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* Typography specifics */
h1Element, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* SignIn Page Styles */
.signin-body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    flex-direction: column;
    background-color: var(--surface-color);
}

.signin-container {
    background-color: white;
    border-radius: var(--radius);
    padding: 48px;
    box-shadow: var(--shadow-md);
    text-align: center;
    max-width: 420px;
    width: 100%;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.signin-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.signin-heading {
    margin-bottom: 32px;
    color: var(--primary-color);
    font-size: 24px;
}

.signin-input {
    width: 100%;
    padding: 14px 16px;
    margin: 10px 0;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: #fff;
    color: var(--text-color);
    box-sizing: border-box;
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.signin-input:focus {
    outline: none;
    border-color: #333;
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
}

.signin-btn {
    background-color: #000;
    color: #fff;
    padding: 16px;
    width: 100%;
    border: none;
    border-radius: 8px;
    margin-top: 16px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.2s, transform 0.1s;
    text-decoration: none;
    display: inline-block;
    box-sizing: border-box;
}

.signin-btn:hover {
    background-color: #222;
}

.signin-btn:active {
    transform: scale(0.98);
}

/* Secondary button style for manual register */
.signin-btn.secondary {
    background-color: white;
    color: #333;
    border: 1px solid var(--border-color);
    margin-top: 12px;
}

.signin-btn.secondary:hover {
    background-color: #f8f9fa;
    border-color: #ccc;
}

.signin-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    margin-top: 24px;
    display: inline-block;
}

.signin-link:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.signin-footer {
    margin-top: 32px;
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
    line-height: 1.6;
}

/* Callback Page Styles */
.callback-container {
    background-color: var(--surface-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
}

.callback-header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    padding: 20px;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.callback-header h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0;
    display: flex;
    align-items: center;
}

.callback-main {
    width: 100%;
    max-width: 800px;
    text-align: center;
}

.user-card {
    background-color: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    padding: 40px;
    margin-top: 20px;
    margin-bottom: 20px;
}

.user-card-title {
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
    margin-top: 0;
    margin-bottom: 24px;
    font-size: 1.5rem;
}

.user-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.user-list-item {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    text-align: left;
    padding: 16px 0;
    display: flex;
    justify-content: space-between;
}

.user-list-item:last-child {
    border-bottom: none;
}

.user-list-item strong {
    color: var(--text-muted);
    font-weight: 500;
}

.user-img {
    border: 4px solid white;
    padding: 0;
    border-radius: 50%;
    width: 120px;
    height: 120px;
    object-fit: cover;
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.callback-footer {
    width: 100%;
    text-align: center;
    background-color: white;
    margin-top: auto;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}