/* ── Variables ── */
:root {
    --t-bg:       #F6F4F1;
    --t-white:    #ffffff;
    --t-red:      #A72222;
    --t-orange:   #EAAC42;
    --t-blue:     #5A94A6;
    --t-navy:     #233D68;
    --t-text:     #1a1a1a;
    --t-muted:    #666;
    --t-border:   #e0dbd5;
    --t-nav-h:    68px;
    --t-font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --t-font-serif: 'Playfair Display', Georgia, serif;
}

/* ── Reset ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body { height: 100%; }

body {
    font-family: var(--t-font-sans);
    color: var(--t-text);
    background: var(--t-bg);
    -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */

.t-nav {
    background: var(--t-white);
    border-bottom: 1px solid var(--t-border);
    height: var(--t-nav-h);
    position: sticky;
    top: 0;
    z-index: 200;
}

.t-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    height: 100%;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.t-nav-brand {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
    flex-shrink: 0;
}

.t-brand-srdg {
    font-weight: 600;
    font-size: 15px;
    color: var(--t-navy);
    letter-spacing: 0.04em;
}

.t-brand-sep {
    font-size: 14px;
    color: var(--t-border);
}

.t-brand-tutoring {
    font-weight: 500;
    font-size: 15px;
    color: var(--t-orange);
}

.t-nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    justify-content: center;
}

.t-nav-links a {
    color: var(--t-muted);
    text-decoration: none;
    font-size: 13.5px;
    padding: 6px 13px;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}

.t-nav-links a:hover {
    color: var(--t-navy);
    background: rgba(35, 61, 104, 0.06);
}

.t-nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.t-nav-cta {
    background: var(--t-orange);
    color: #fff;
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    padding: 7px 18px;
    border-radius: 6px;
    transition: opacity 0.15s;
    white-space: nowrap;
}

.t-nav-cta:hover { opacity: 0.85; }

/* ── Hamburger ── */

.t-nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
}

.t-nav-hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--t-navy);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
    transform-origin: center;
}

.t-nav-hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.t-nav-hamburger.active span:nth-child(2) { opacity: 0; }
.t-nav-hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.t-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 190;
}

.t-nav-overlay.visible { display: block; }

/* ── Main ── */

.t-main {
    min-height: calc(100vh - var(--t-nav-h));
}

/* ── Footer ── */

.t-footer {
    background: var(--t-navy);
    padding: 4rem 2rem 0;
}

.t-footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.t-footer-logo {
    font-size: 15px;
    font-weight: 600;
    color: #f0f0f0;
    letter-spacing: 0.04em;
    margin-bottom: 10px;
}

.t-footer-logo span { color: var(--t-orange); }

.t-footer-brand p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    line-height: 1.65;
    margin-bottom: 1.25rem;
    max-width: 230px;
}

.t-footer-back {
    font-size: 12.5px;
    color: rgba(255, 255, 255, 0.35);
    text-decoration: none;
    transition: color 0.15s;
}

.t-footer-back:hover { color: rgba(255, 255, 255, 0.75); }

.t-footer-col {
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.t-footer-col h4 {
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.25);
    margin-bottom: 4px;
}

.t-footer-col a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    transition: color 0.15s;
}

.t-footer-col a:hover { color: rgba(255, 255, 255, 0.85); }

.t-footer-bottom {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 0;
}

.t-footer-bottom span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.18);
}

.t-footer-privacy {
    display: inline-block;
    margin-left: 1rem;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.t-footer-privacy:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ── Mobile ── */

@media (max-width: 768px) {
    .t-nav-inner { padding: 0 1.25rem; }

    .t-nav-hamburger { display: flex; }

    .t-nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100dvh;
        width: min(280px, 80vw);
        background: var(--t-white);
        border-left: 1px solid var(--t-border);
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 0;
        padding: calc(var(--t-nav-h) + 1rem) 1rem 2rem;
        overflow-y: auto;
        transform: translateX(100%);
        transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 200;
    }

    .t-nav-links.open { transform: translateX(0); }

    .t-nav-links a {
        font-size: 15px;
        padding: 12px 14px;
        border-radius: 8px;
        color: var(--t-text);
    }

    .t-footer-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}