* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

.form-section {
    background: #ffffff;
    padding: 80px 20px;
    height: 100vh;
}

.rsvp-container {
    max-width: 1300px;
    margin: auto;
    background: #cfb9be;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 14px rgba(0,0,0,0.25);
}

.rsvp-header {
    position: relative;
    background: #b58f98;
    text-align: center;
    padding: 40px 20px 70px;
    clip-path: polygon(0 0, 100% 0, 100% 55%, 50% 100%, 0 55%);
}

.rsvp-header h1 {
    font-size: 36px;
    color: #550216;
    font-weight: 600;
    margin-bottom: 10px;
}

.rsvp-header .icon {
    margin-top: 8px;
}

.rsvp-header .icon img {
    width: 70px;
    height: auto;
}

.rsvp-content {
    padding: 10px 60px 50px;
    text-align: center;
}

.rsvp-subtitle {
    font-size: 25px;
    color: #550216;
    margin-bottom: 20px;
    font-weight: 500;
}

.rsvp-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.rsvp-form input,
.rsvp-form textarea {
    background: #e9e0e2;
    border: none;
    border-radius: 6px;
    padding: 12px 14px;
    font-size: 16px;
    color: #550216;
    outline: none;
}

.rsvp-form textarea {
    resize: none;
    height: 90px;
}

.rsvp-form input::placeholder,
.rsvp-form textarea::placeholder {
    color: #550216;
    opacity: 0.9;
}

.rsvp-form button {
    margin: 25px auto 0;
    background: #550216;
    color: #ffffff;
    border: none;
    padding: 10px 26px;
    font-size: 18px;
    border-radius: 6px;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0,0,0,0.35);
}

@media (max-width: 768px) {
    .form-section {
        padding: 60px 20px;
        height: auto;
        min-height: 100vh;
    }

    .rsvp-container {
        max-width: 700px;
    }

    .rsvp-header {
        padding: 35px 20px 60px;
    }

    .rsvp-header h1 {
        font-size: 32px;
    }

    .rsvp-header .icon img {
        width: 65px;
    }

    .rsvp-content {
        padding: 10px 50px 45px;
    }

    .rsvp-subtitle {
        font-size: 23px;
        margin-bottom: 18px;
    }

    .rsvp-form input,
    .rsvp-form textarea {
        font-size: 15px;
        padding: 11px 13px;
    }

    .rsvp-form textarea {
        height: 85px;
    }

    .rsvp-form button {
        padding: 9px 24px;
        font-size: 17px;
        margin-top: 22px;
    }
}

@media (max-width: 480px) {
    .form-section {
        padding: 40px 10px;
        height: auto;
    }

    .rsvp-header {
        padding: 30px 15px 50px;
        clip-path: polygon(0 0, 100% 0, 100% 65%, 50% 100%, 0 65%);
    }

    .rsvp-header h1 {
        font-size: 28px;
    }

    .rsvp-content {
        padding: 10px 20px 40px;
    }

    .rsvp-subtitle {
        font-size: 20px;
    }

    .rsvp-form input,
    .rsvp-form textarea {
        font-size: 14px;
        padding: 10px;
    }
}