/* Shared navigation system for every Banana English page. */
:root {
    --nav-surface: rgba(250, 248, 245, 0.97);
    --nav-text: var(--pure-black, #2b2b2b);
    --nav-accent: var(--banana-yellow, #fbea8c);
    --nav-shadow: var(--action-orange, #5c3a21);
}

.top-nav,
.top-nav * {
    box-sizing: border-box;
}

.top-nav a,
.top-nav button {
    touch-action: manipulation;
}

.top-nav a:focus-visible,
.top-nav button:focus-visible {
    outline: 3px solid var(--nav-shadow);
    outline-offset: 3px;
}

@media (min-width: 901px) {
    .top-nav {
        position: fixed !important;
        z-index: 1000 !important;
        top: 0;
        left: 0;
        display: flex !important;
        width: 100%;
        min-height: 72px !important;
        align-items: center;
        justify-content: space-between;
        gap: 24px !important;
        padding: 12px clamp(22px, 2.2vw, 40px) !important;
        border-bottom: 3px solid var(--nav-text) !important;
        background: var(--nav-surface) !important;
        box-shadow: 0 7px 24px rgba(0, 0, 0, 0.17) !important;
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
    }

    .top-nav .mobile-brand,
    .top-nav .mobile-menu-toggle {
        display: none !important;
    }

    .top-nav .nav-links,
    .top-nav .nav-actions {
        display: flex !important;
        width: auto;
        align-items: center;
        justify-content: flex-start;
        gap: 14px !important;
        margin: 0;
        padding: 0;
    }

    .top-nav .nav-link,
    .top-nav .tg-btn,
    .top-nav .login-btn {
        display: inline-flex !important;
        min-height: 44px !important;
        align-items: center;
        justify-content: center;
        margin: 0;
        padding: 9px 13px !important;
        border-radius: 8px !important;
        color: var(--nav-text) !important;
        font-family: "Press Start 2P", cursive !important;
        font-size: 0.72rem !important;
        font-weight: 400 !important;
        line-height: 1.4 !important;
        text-align: center;
        text-decoration: none !important;
        text-transform: uppercase;
        white-space: nowrap;
        transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

    .top-nav .nav-link {
        border: 2px solid transparent !important;
        background: transparent !important;
        box-shadow: none !important;
    }

    .top-nav .nav-link[aria-current="page"] {
        border-color: transparent !important;
        background: var(--nav-accent) !important;
    }

    .top-nav .tg-btn {
        border: 2px solid var(--nav-text) !important;
        background: transparent !important;
        box-shadow: none !important;
    }

    .top-nav .login-btn {
        border: 2px solid var(--nav-text) !important;
        background: var(--nav-accent) !important;
        box-shadow: 4px 4px 0 var(--nav-shadow) !important;
    }
}

@media (hover: hover) and (pointer: fine) and (min-width: 901px) {
    .top-nav .nav-link:hover {
        border-color: rgba(43, 43, 43, 0.14) !important;
        color: var(--nav-text) !important;
        background: rgba(251, 234, 140, 0.34) !important;
        transform: translateY(-2px);
    }

    .top-nav .nav-link[aria-current="page"]:hover {
        border-color: transparent !important;
        background: var(--nav-accent) !important;
    }

    .top-nav .tg-btn:hover {
        color: var(--pure-white, #faf8f5) !important;
        background: var(--nav-text) !important;
        transform: translateY(-2px);
    }

    .top-nav .login-btn:hover {
        box-shadow: 6px 6px 0 var(--nav-shadow) !important;
        transform: translateY(-2px);
    }
}

@media (max-width: 900px) {
    .top-nav {
        border-bottom-color: var(--nav-text) !important;
        background: var(--nav-surface) !important;
    }

    .top-nav .nav-link,
    .top-nav .tg-btn,
    .top-nav .login-btn {
        width: 100% !important;
        min-width: 0;
        min-height: 48px !important;
        margin: 0 !important;
        padding: 9px 8px !important;
        border: 2px solid var(--nav-text) !important;
        border-radius: 9px !important;
        color: var(--nav-text) !important;
        font-family: "Press Start 2P", cursive !important;
        font-size: 0.56rem !important;
        font-weight: 400 !important;
        line-height: 1.45 !important;
        text-align: center;
        text-decoration: none !important;
        text-transform: uppercase;
        overflow-wrap: anywhere;
    }

    .top-nav .nav-link,
    .top-nav .tg-btn {
        background: rgba(255, 255, 255, 0.72) !important;
        box-shadow: none !important;
    }

    .top-nav .nav-link[aria-current="page"],
    .top-nav .login-btn {
        background: var(--nav-accent) !important;
    }

    .top-nav .login-btn {
        box-shadow: 3px 3px 0 var(--nav-shadow) !important;
    }

    .top-nav .mobile-menu-toggle {
        min-width: 44px;
        min-height: 44px;
        border: 2px solid var(--nav-text) !important;
        border-radius: 9px !important;
        color: var(--nav-text) !important;
        background: var(--nav-accent) !important;
        box-shadow: 3px 3px 0 var(--nav-shadow) !important;
    }

    .top-nav .nav-link:active,
    .top-nav .tg-btn:active,
    .top-nav .login-btn:active,
    .top-nav .mobile-menu-toggle:active {
        box-shadow: none !important;
        transform: translate(2px, 2px);
    }
}

@media (max-width: 520px) {
    .top-nav .nav-link,
    .top-nav .tg-btn,
    .top-nav .login-btn {
        min-height: 44px !important;
        padding: 8px 6px !important;
        font-size: 0.5rem !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .top-nav .nav-link,
    .top-nav .tg-btn,
    .top-nav .login-btn,
    .top-nav .mobile-menu-toggle {
        transition: none !important;
    }
}

/* Shared contact choice dialog for support and trial-lesson actions. */
body.contact-choice-open {
    overflow: hidden;
}

.contact-choice-overlay,
.contact-choice-overlay * {
    box-sizing: border-box;
}

.contact-choice-overlay[hidden] {
    display: none !important;
}

.contact-choice-overlay {
    position: fixed;
    z-index: 1200;
    inset: 0;
    display: grid;
    overflow-y: auto;
    padding: max(20px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    place-items: center;
    background: rgba(20, 18, 16, 0.72);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    animation: contact-overlay-in 0.2s ease-out both;
}

.contact-choice-dialog {
    position: relative;
    width: min(100%, 570px);
    padding: clamp(28px, 5vw, 44px);
    border: 3px solid var(--nav-text);
    border-radius: 22px;
    color: var(--nav-text);
    background:
        linear-gradient(rgba(43, 43, 43, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(43, 43, 43, 0.035) 1px, transparent 1px),
        var(--pure-white, #faf8f5);
    background-size: 24px 24px;
    box-shadow: 10px 10px 0 var(--nav-shadow);
    text-align: left;
    animation: contact-dialog-in 0.24s ease-out both;
}

.contact-choice-close {
    position: absolute;
    top: 16px;
    right: 16px;
    display: grid;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 2px solid var(--nav-text);
    border-radius: 12px;
    color: var(--nav-text);
    background: var(--nav-accent);
    cursor: pointer;
    place-items: center;
    touch-action: manipulation;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.contact-choice-close svg,
.contact-choice-icon svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.contact-choice-close:hover {
    background: #fff2a9;
    transform: translateY(-2px);
}

.contact-choice-close:active {
    transform: translate(2px, 2px);
}

.contact-choice-kicker {
    display: block;
    margin: 0 64px 12px 0;
    color: var(--nav-shadow);
    font-family: "Press Start 2P", cursive;
    font-size: clamp(0.58rem, 1.8vw, 0.7rem);
    line-height: 1.5;
}

.contact-choice-dialog h2 {
    max-width: 430px;
    margin: 0 56px 14px 0;
    color: var(--nav-text);
    font-family: "Press Start 2P", cursive;
    font-size: clamp(1.25rem, 4.8vw, 2rem);
    font-weight: 400;
    line-height: 1.25;
    text-transform: none;
}

.contact-choice-dialog > p {
    margin: 0;
    color: var(--muted-text, #605b55);
    font-family: "Neuton", Arial, sans-serif;
    font-size: clamp(1.05rem, 3vw, 1.18rem);
    line-height: 1.5;
}

.contact-choice-actions {
    display: grid;
    gap: 12px;
    margin: 28px 0 18px;
}

.contact-choice-action {
    display: grid;
    min-height: 76px;
    grid-template-columns: 48px minmax(0, 1fr);
    align-items: center;
    gap: 14px;
    padding: 13px 16px;
    border: 2px solid var(--nav-text);
    border-radius: 14px;
    color: var(--nav-text);
    background: var(--nav-accent);
    box-shadow: 5px 5px 0 var(--nav-shadow);
    text-decoration: none;
    cursor: pointer;
    touch-action: manipulation;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.contact-choice-action--telegram {
    color: var(--pure-white, #faf8f5);
    background: var(--nav-text);
}

.contact-choice-action--form {
    width: 100%;
    font: inherit;
    text-align: left;
}

.contact-choice-icon {
    display: grid;
    width: 48px;
    height: 48px;
    border: 2px solid currentColor;
    border-radius: 12px;
    place-items: center;
}

.contact-choice-action strong,
.contact-choice-action small {
    display: block;
    overflow-wrap: anywhere;
}

.contact-choice-action strong {
    font-family: "Press Start 2P", cursive;
    font-size: clamp(0.65rem, 2.3vw, 0.8rem);
    font-weight: 400;
    line-height: 1.45;
}

.contact-choice-action small {
    margin-top: 5px;
    font-family: Arial, sans-serif;
    font-size: 0.92rem;
    line-height: 1.3;
    opacity: 0.82;
}

.contact-choice-action:hover {
    box-shadow: 7px 7px 0 var(--nav-shadow);
    transform: translateY(-2px);
}

.contact-choice-action:active {
    box-shadow: 2px 2px 0 var(--nav-shadow);
    transform: translate(3px, 3px);
}

.contact-choice-close:focus-visible,
.contact-choice-action:focus-visible,
.contact-request-form input:focus-visible,
.contact-request-form textarea:focus-visible,
.contact-request-form__submit:focus-visible,
.contact-request-form a:focus-visible {
    outline: 3px solid var(--nav-shadow);
    outline-offset: 4px;
}

.contact-request-form[hidden] {
    display: none !important;
}

.contact-request-form {
    display: grid;
    gap: 14px;
    margin: 4px 0 20px;
    padding: 20px;
    border: 2px solid var(--nav-text);
    border-radius: 16px;
    background: #fffaf0;
}

.contact-request-form__heading {
    display: grid;
    gap: 5px;
}

.contact-request-form__heading strong {
    font-family: "Press Start 2P", cursive;
    font-size: 0.72rem;
    font-weight: 400;
    line-height: 1.55;
}

.contact-request-form__heading span,
.contact-request-form label > span,
.contact-request-form__status {
    font-family: Arial, sans-serif;
}

.contact-request-form__heading span {
    color: var(--muted-text, #605b55);
    font-size: 0.92rem;
    line-height: 1.4;
}

.contact-request-form label:not(.contact-request-form__consent) {
    display: grid;
    gap: 7px;
    color: var(--nav-text);
    font-family: Arial, sans-serif;
    font-size: 0.9rem;
    font-weight: 700;
}

.contact-request-form label small {
    font-weight: 400;
}

.contact-request-form input[type="text"],
.contact-request-form textarea {
    width: 100%;
    min-height: 46px;
    padding: 11px 12px;
    border: 2px solid var(--nav-text);
    border-radius: 10px;
    color: var(--nav-text);
    background: #fff;
    font: 400 1rem/1.4 Arial, sans-serif;
}

.contact-request-form textarea {
    min-height: 88px;
    resize: vertical;
}

.contact-request-form__consent {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    align-items: start;
    gap: 10px;
    color: var(--muted-text, #605b55);
    cursor: pointer;
    font: 400 0.84rem/1.5 Arial, sans-serif;
}

.contact-request-form__consent input {
    width: 22px;
    height: 22px;
    margin: 1px 0 0;
    accent-color: var(--nav-shadow);
}

.contact-request-form__consent a {
    color: var(--nav-shadow);
    font-weight: 700;
}

.contact-request-form__status {
    min-height: 0;
    margin: 0;
    color: var(--muted-text, #605b55);
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.4;
}

.contact-request-form__status:empty {
    display: none;
}

.contact-request-form__status.is-error {
    color: #a22620;
}

.contact-request-form__status.is-success {
    color: #286b32;
}

.contact-request-form__submit {
    min-height: 48px;
    padding: 12px 16px;
    border: 2px solid var(--nav-text);
    border-radius: 11px;
    color: var(--nav-text);
    background: var(--nav-accent);
    box-shadow: 4px 4px 0 var(--nav-shadow);
    cursor: pointer;
    font-family: "Press Start 2P", cursive;
    font-size: 0.67rem;
    line-height: 1.45;
}

.contact-request-form__submit:disabled {
    cursor: wait;
    opacity: 0.65;
}

.contact-choice-dialog .contact-choice-note {
    color: var(--nav-shadow);
    font-size: 0.96rem;
    font-weight: 700;
    text-align: center;
}

@keyframes contact-overlay-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes contact-dialog-in {
    from { opacity: 0; transform: translateY(14px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 520px) {
    .contact-choice-overlay {
        padding: max(12px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
    }

    .contact-choice-dialog {
        padding: 26px 18px 24px;
        border-radius: 18px;
        box-shadow: 7px 7px 0 var(--nav-shadow);
    }

    .contact-choice-close {
        top: 12px;
        right: 12px;
        width: 44px;
        height: 44px;
    }

    .contact-choice-dialog h2 {
        margin-right: 50px;
        font-size: clamp(1.15rem, 6.2vw, 1.45rem);
    }

    .contact-choice-dialog > p {
        font-size: 1rem;
    }

    .contact-choice-actions {
        margin-top: 22px;
    }

    .contact-choice-action {
        min-height: 70px;
        grid-template-columns: 44px minmax(0, 1fr);
        gap: 11px;
        padding: 11px 12px;
        box-shadow: 4px 4px 0 var(--nav-shadow);
    }

    .contact-choice-icon {
        width: 44px;
        height: 44px;
    }

    .contact-request-form {
        padding: 16px 13px;
    }

    .contact-request-form__consent {
        font-size: 0.8rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .contact-choice-overlay,
    .contact-choice-dialog {
        animation: none !important;
    }

    .contact-choice-close,
    .contact-choice-action {
        transition: none !important;
    }
}