:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --input-bg: #f1f5f9;
    --error: #ef4444;
    --success: #10b981;
    --font-family: 'Outfit', sans-serif;
    --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: var(--font-family);
    background-color: transparent; /* Transparent for iframe usage */
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.form-container {
    background: var(--card-bg);
    width: 100%;
    max-width: 500px;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--text-main) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 15px;
}

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

.row {
    display: flex;
    gap: 15px;
}

.row .input-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
}

input, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--input-bg);
    font-family: inherit;
    font-size: 15px;
    transition: all 0.3s ease;
    color: var(--text-main);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background-color: #fff;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

button {
    width: 100%;
    padding: 14px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px -5px rgba(99, 102, 241, 0.4);
}

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

.error-message {
    color: var(--error);
    margin-top: 15px;
    text-align: center;
    font-size: 14px;
    min-height: 20px;
}

/* Thank You State */
.hidden {
    display: none;
}

.thank-you-container {
    text-align: center;
    padding: 20px 0;
    animation: fadeIn 0.5s ease;
}

.success-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(16, 185, 129, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.thank-you-container h2 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-main);
}

.thank-you-container p {
    color: var(--text-muted);
    margin-bottom: 30px;
    line-height: 1.5;
}

.secondary-btn {
    background-color: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-muted);
}

.secondary-btn:hover {
    background-color: var(--bg-color);
    border-color: var(--text-muted);
    color: var(--text-main);
    box-shadow: none;
    transform: none;
}

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

@media (max-width: 480px) {
    .form-container {
        padding: 25px;
    }
    
    .row {
        flex-direction: column;
        gap: 0;
    }
}