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

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #eef2ff;
    --error-color: #ef4444;
    --error-bg: #fee2e2;
    --info-color: #3b82f6;
    --info-bg: #dbeafe;
    --success-color: #10b981;
    --success-bg: #d1fae5;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --background: #f9fafb;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    line-height: 1.6;
    padding: 20px;
}

#wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#main {
    width: 100%;
    max-width: 440px;
}

.container {
    width: 100%;
}

.box {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.4s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Message Styles */
.error-message,
.info-message,
.confirmed-message {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 14px;
    line-height: 1.5;
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.error-message.visible,
.info-message.visible,
.confirmed-message.visible {
    display: block;
}

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

.error-message {
    background: var(--error-bg);
    color: var(--error-color);
    border-left: 4px solid var(--error-color);
}

.info-message {
    background: var(--info-bg);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}

.confirmed-message {
    background: var(--success-bg);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

/* Form Styles */
form {
    margin-top: 0;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.2s ease;
    background: var(--white);
    color: var(--text-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group input::placeholder {
    color: var(--text-secondary);
}

.form-group input:hover:not(:focus) {
    border-color: #d1d5db;
}

/* Button Styles */
.actions {
    margin-top: 28px;
    margin-bottom: 20px;
}

.button {
    display: inline-block;
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.button.primary {
    background: var(--primary-color);
    color: var(--white);
}

.button.primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.button.primary:active {
    transform: translateY(0);
}

.button.fit {
    width: 100%;
}

/* Link Styles */
.link {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.link p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

/* Responsive Design */
@media (max-width: 480px) {
    body {
        padding: 16px;
    }

    .box {
        padding: 28px 24px;
    }

    .form-group input {
        padding: 11px 14px;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .button {
        padding: 12px 20px;
    }
}

/* Loading State */
.button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Accessibility */
.button:focus,
input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}