:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --background-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --input-focus-ring: rgba(37, 99, 235, 0.2);
    --success-color: #10b981;
    --error-color: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image:
        radial-gradient(at 0% 0%, rgba(37, 99, 235, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
}

.main-container {
    width: 100%;
    padding: 20px;
}

.content-wrapper {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

header {
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    letter-spacing: -0.025em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.8s ease-out;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
}

input,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-main);
    transition: all 0.2s;
    outline: none;
    font-family: inherit;
    resize: vertical;
}

input:focus,
textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px var(--input-focus-ring);
}

input::placeholder,
textarea::placeholder {
    color: #94a3b8;
}

.iti {
    width: 100%;
}

.cta-button {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 0.5rem;
}

.cta-button:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

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

/* Success Message */
.hidden {
    display: none;
}

.success-message {
    text-align: center;
    padding: 1rem 0;
    animation: fadeIn 0.5s ease-out;
}

.icon-circle {
    width: 60px;
    height: 60px;
    background-color: #d1fae5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--success-color);
}

.success-message h3 {
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.success-message p {
    color: var(--text-secondary);
}

.error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 1rem;
    text-align: center;
}

footer {
    margin-top: 2rem;
    color: #94a3b8;
    font-size: 0.75rem;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Mobile Responsiveness */
@media (max-width: 640px) {
    .card {
        padding: 1.5rem;
    }

    h1 {
        font-size: 1.75rem;
    }
}