:root {
    --primary-blue: #1b66c9;
    --primary-dark: #1551a3;
    --primary-light: #f0f7ff;
    --bg-gray: #f8f9fa;
    --text-dark: #1a1a1a;
    --text-muted: #757575;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0,0,0,0.05);
    --radius: 16px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: white;
    color: var(--text-dark);
    line-height: 1.4;
    overflow-x: hidden;
}

.app-container {
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
}

.page {
    display: none;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.logo-icon {
    background-color: var(--primary-blue);
    color: white;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 1.2rem;
}

.main-action-btn {
    background-color: var(--primary-blue);
    color: white;
    width: 100%;
    padding: 18px;
    border-radius: var(--radius);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(27, 102, 201, 0.2);
    transition: transform 0.2s;
}

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

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

.custom-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    background: var(--bg-gray);
    color: var(--text-dark);
    outline: none;
    transition: border-color 0.2s;
}

.custom-input:focus {
    border-color: var(--primary-blue);
}

/* Specific Login Styles */
.login-container {
    padding: 2rem;
    max-width: 400px;
    margin: 4rem auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon.large {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

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

.login-btn {
    width: 100%;
    margin-top: 1.5rem;
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.login-footer a {
    color: var(--primary-blue);
    font-weight: 600;
    text-decoration: none;
}