:root {
    --accent: #2563eb;
    --accent-soft: rgba(37, 99, 235, 0.1);
    --accent-deep: #1e3a8a;
    --text-on-accent: #ffffff;
}

body {
    margin: 0;
    font-family: "Open Sans", sans-serif;
    font-size: 14px;
    line-height: 21px;
    color: rgba(83, 84, 86, 1);
}
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    max-width: 1400px;
    margin: 0 auto;
    flex-wrap: wrap;
}
.main {
    padding: 80px 20px;
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.main svg {
    max-width: 100%;
}
.main-txt {
    padding: 30px 0;
    font-size: 24px;
    line-height: 120%;
    font-weight: 700;
}
.footer {
    align-self: end;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 20px 0;
    justify-content: center;
}
.mail-button {
    font-size: 18px;
    padding: 16px;
    color: rgba(0, 0, 0, 1);
    background-color: rgba(255, 221, 55, 1);
    border-radius: 4px;
    display: block;
    line-height: 18px;
    text-decoration: none;
    transition:
        color 0.3s,
        background-color 0.3s;
}
.mail-button:hover {
    background-color: #fdc918;
}
.footer img {
    max-width: 119px;
}
.footer-txt {
    text-align: center;
}
@media (min-width: 768px) {
    .main svg {
        max-width: 520px;
    }
    .main-txt {
        padding: 40px 0;
        font-size: 26px;
    }
    .mail-button {
        display: inline-block;
        font-size: 22px;
        line-height: 22px;
        padding: 18px 33px;
    }
}
@media (min-width: 1200px) {
    .main-txt {
        font-size: 28px;
    }
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;

    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
    z-index: 9999;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 100%;
    max-width: 520px;
    background: white;
    border-radius: 24px;
    padding: 35px;
    position: relative;
    animation: modalShow 0.25s ease;
}

@keyframes modalShow {
    from {
        transform: translateY(15px) scale(0.97);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-content h2 {
    margin-bottom: 25px;
    color: var(--accent);
}

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

.modal-content input,
.modal-content textarea {
    width: 100%;
    padding: 14px 18px;
    border-radius: 14px;
    border: 1px solid #ddd;
    outline: none;
    font-size: 1rem;
    resize: none;
    box-sizing: border-box;
    font-family: inherit;
}

.modal-content textarea {
    min-height: 140px;
}

.modal-content input:focus,
.modal-content textarea:focus {
    border-color: var(--accent);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    border: none;
    background: transparent;
    font-size: 2rem;
    cursor: pointer;
    color: #888;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition:
        transform 0.2s ease,
        background-color 0.4s ease;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--text-on-accent);
    box-shadow: 0 10px 20px var(--accent-soft);
}

.btn-primary:hover {
    transform: scale(1.05);
    background-color: var(--accent-deep);
}

.btn:disabled,
button:disabled,
input[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
    transform: none;
    box-shadow: none;
}

.btn-primary:disabled {
    background-color: #94a3b8;
    color: #f8fafc;
    cursor: not-allowed;
    pointer-events: none;
}

#result {
    margin-top: 10px;
    font-weight: 600;
}