/* ================================================
   BKW Support Services — styles.css
   ================================================ */

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
img  { max-width: 100%; height: auto; display: block; }
a    { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; }
textarea, input { font-family: inherit; }

/* ── Design tokens ───────────────────────────── */
:root {
    --ink:          #1C1A14;
    --ink-muted:    #5C5549;
    --surface:      #F4EFE4;
    --surface-alt:  #EBE4D5;
    --border:       #CEC8B6;
    --white:        #FFFDF8;
    --blue:         #2B5EA7;
    --blue-dark:    #1E4580;
    --rust:         #A8532E;
    --dark:         #1C1A14;

    --serif: 'Fraunces', Georgia, serif;
    --sans:  'Inter', system-ui, -apple-system, sans-serif;

    --container-max: 1100px;
    --pad-x:         clamp(1.25rem, 5vw, 2rem);
    --section-py:    clamp(4rem, 9vw, 7rem);
    --radius:        4px;
    --radius-lg:     12px;
    --ease:          180ms ease;
}

body {
    font-family: var(--sans);
    color: var(--ink);
    background-color: var(--surface);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; }
textarea, input { font-family: inherit; }

/* ── Utilities ───────────────────────────────── */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--pad-x);
    padding-right: var(--pad-x);
}

.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ── Buttons ─────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6875rem 1.375rem;
    border-radius: var(--radius);
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color var(--ease), color var(--ease),
                border-color var(--ease), box-shadow var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
}

.btn-primary {
    background-color: var(--blue);
    color: var(--white);
    border: 1.5px solid var(--blue);
}
.btn-primary:hover {
    background-color: var(--blue-dark);
    border-color: var(--blue-dark);
}

.btn-ghost {
    background-color: transparent;
    color: var(--ink);
    border: 1.5px solid var(--border);
}
.btn-ghost:hover {
    border-color: var(--ink-muted);
    background-color: rgba(26, 34, 53, 0.03);
}

.btn-outline {
    background-color: transparent;
    color: var(--ink);
    border: 1.5px solid var(--border);
    width: 100%;
}
.btn-outline:hover {
    border-color: var(--blue);
    color: var(--blue);
}

/* ── Check list (shared) ─────────────────────── */

.check-list {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}
.check-list li {
    font-size: 0.9375rem;
    padding-left: 1.375rem;
    position: relative;
    line-height: 1.5;
    color: var(--ink);
}
.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--blue);
    font-size: 0.8125rem;
    font-weight: 700;
    top: 0.1em;
}

/* ── Section defaults ────────────────────────── */

.section {
    padding-top: var(--section-py);
    padding-bottom: var(--section-py);
}

.section-header { margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.section-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(1.875rem, 4vw, 2.625rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--ink);
    margin-bottom: 0.875rem;
}

.section-sub {
    font-size: 1.0625rem;
    color: var(--ink-muted);
    line-height: 1.7;
    max-width: 54ch;
}

/* ── Eyebrow label ───────────────────────────── */

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--rust);
    margin-bottom: 1.5rem;
}
.eyebrow::before {
    content: '';
    display: inline-block;
    width: 28px;
    height: 2px;
    background-color: var(--rust);
    flex-shrink: 0;
    border-radius: 1px;
}

/* ── Header / Nav ────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--surface);
    border-bottom: 1px solid transparent;
    transition: border-color var(--ease), box-shadow var(--ease);
}
.site-header.is-scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 1px 12px rgba(26, 34, 53, 0.05);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 2rem;
}

.nav-logo {
    font-family: var(--serif);
    font-size: 1.0625rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--ink);
    flex-shrink: 0;
    line-height: 1;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}
.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ink-muted);
    transition: color var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); }

.nav-links .nav-cta {
    background-color: var(--blue);
    color: var(--white);
    padding: 0.4375rem 0.875rem;
    border-radius: var(--radius);
}
.nav-links .nav-cta:hover {
    background-color: var(--blue-dark);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    margin-right: -8px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background-color: var(--ink);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (max-width: 700px) {
    .nav-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: 64px; left: 0; right: 0; bottom: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        background-color: var(--surface);
        padding: 0 var(--pad-x) 2rem;
        border-top: 1px solid var(--border);
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
        pointer-events: none;
    }
    .nav-links.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }
    .nav-links li {
        width: 100%;
        border-bottom: 1px solid var(--border);
    }
    .nav-links a {
        display: block;
        padding: 1.125rem 0;
        font-size: 1.0625rem;
        color: var(--ink);
    }
    .nav-links .nav-cta {
        display: inline-block;
        margin-top: 1.5rem;
        padding: 0.625rem 1.25rem;
        border-radius: var(--radius);
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(1) {
        transform: translateY(6.5px) rotate(45deg);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) {
        transform: translateY(-6.5px) rotate(-45deg);
    }
}

/* ── Hero ────────────────────────────────────── */

.hero {
    padding-top:    clamp(4rem, 10vw, 8rem);
    padding-bottom: clamp(3rem, 8vw, 7rem);
    border-bottom: 1px solid var(--border);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
}

.hero-headline {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(2.25rem, 5.5vw, 3.875rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
    color: var(--ink);
    margin-bottom: 1.375rem;
}

.hero-sub {
    font-size: 1.0625rem;
    color: var(--ink-muted);
    max-width: 50ch;
    line-height: 1.75;
    margin-bottom: 2.25rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-panel {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    position: sticky;
    top: 88px;
}

.panel-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-muted);
    margin-bottom: 1rem;
}

@media (max-width: 880px) {
    .hero-container { grid-template-columns: 1fr; }
    .hero-panel { position: static; max-width: 480px; }
}

/* ── Photo break ─────────────────────────────── */

.photo-break {
    height: 320px;
    overflow: hidden;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.photo-break img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: saturate(0.75) brightness(0.92);
}

@media (max-width: 700px) {
    .photo-break { height: 200px; }
}

/* ── Services ────────────────────────────────── */

.services { border-bottom: 1px solid var(--border); }

.services-list { border-top: 1px solid var(--border); }

.service-item {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 2rem;
    padding: 2.25rem 0;
    border-bottom: 1px solid var(--border);
}

.service-num {
    font-family: var(--serif);
    font-style: italic;
    font-size: 2rem;
    font-weight: 300;
    color: var(--border);
    line-height: 1;
    padding-top: 0.2em;
    user-select: none;
}

.service-body h3 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.3125rem;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.service-body p {
    font-size: 1rem;
    color: var(--ink-muted);
    max-width: 58ch;
    line-height: 1.75;
}

@media (max-width: 540px) {
    .service-item { grid-template-columns: 1fr; gap: 0.375rem; }
    .service-num  { font-size: 1.25rem; }
}

/* ── Plans ───────────────────────────────────── */

.plans {
    background-color: var(--surface-alt);
    border-bottom: 1px solid var(--border);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.plan-card {
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
}

.plan-featured {
    background-color: var(--dark);
    border-color: var(--dark);
    color: var(--white);
}

.plan-badge {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--rust);
    color: var(--white);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    white-space: nowrap;
}

.plan-name {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 1.375rem;
    letter-spacing: -0.01em;
}

.plan-price {
    display: flex;
    align-items: baseline;
    gap: 0.125rem;
}

.price-amount {
    font-family: var(--serif);
    font-size: 2.75rem;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.03em;
}

.price-unit {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.65;
    margin-left: 0.125rem;
}

.price-device {
    font-size: 0.8125rem;
    opacity: 0.55;
    margin-top: 0.25rem;
}

.plan-features { flex: 1; }

.plan-features.check-list li {
    color: inherit;
    opacity: 0.9;
}
.plan-featured .check-list li::before { color: #7BAEE8; }

.plan-featured .btn-primary {
    background-color: var(--white);
    color: var(--ink);
    border-color: var(--white);
}
.plan-featured .btn-primary:hover {
    background-color: var(--surface);
    border-color: var(--surface);
}

.plans-footnote {
    font-size: 0.9rem;
    color: var(--ink-muted);
    text-align: center;
    max-width: 54ch;
    margin: 0 auto;
    line-height: 1.7;
}

@media (max-width: 760px) {
    .plans-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
    .plan-featured { order: -1; }
}

/* ── About ───────────────────────────────────── */

.about { border-bottom: 1px solid var(--border); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: clamp(3rem, 6vw, 5rem);
    align-items: start;
}

.about-photo {
    margin-bottom: 2rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 260px;
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: saturate(0.8);
}

.about-text .section-title { margin-bottom: 1.5rem; }

.about-text p {
    font-size: 1.0625rem;
    color: var(--ink-muted);
    line-height: 1.8;
    max-width: 58ch;
    margin-bottom: 1.25rem;
}
.about-text p:last-child { margin-bottom: 0; }

.about-aside {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-top: 0.375rem;
}

.aside-block {
    border-left: 2px solid var(--blue);
    padding-left: 1.125rem;
}

.aside-block h4 {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-muted);
    margin-bottom: 0.625rem;
}

.aside-block ul {
    display: flex;
    flex-direction: column;
    gap: 0.3125rem;
}

.aside-block li,
.aside-block p {
    font-size: 0.9375rem;
    color: var(--ink);
    line-height: 1.55;
}

@media (max-width: 760px) {
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
}

/* ── Contact ─────────────────────────────────── */

.contact { background-color: var(--surface-alt); }

.contact-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: clamp(3rem, 6vw, 5rem);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.contact-item h4 {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ink-muted);
    margin-bottom: 0.375rem;
}

.contact-item a {
    font-size: 0.9375rem;
    color: var(--blue);
    font-weight: 500;
    word-break: break-word;
    transition: color var(--ease);
}
.contact-item a:hover {
    color: var(--blue-dark);
    text-decoration: underline;
}

.contact-item p {
    font-size: 0.9375rem;
    color: var(--ink-muted);
    line-height: 1.65;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.125rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ink);
}

.label-optional {
    font-weight: 400;
    color: var(--ink-muted);
    font-size: 0.8125rem;
}

.form-group input,
.form-group textarea {
    font-size: 1rem;
    color: var(--ink);
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.6875rem 0.875rem;
    width: 100%;
    outline: none;
    appearance: none;
    transition: border-color var(--ease), box-shadow var(--ease);
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(43, 94, 167, 0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--ink-muted);
    opacity: 0.55;
}
.form-group textarea {
    resize: vertical;
    min-height: 130px;
    line-height: 1.65;
}

.contact-form .btn { align-self: flex-start; }

@media (max-width: 760px) {
    .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
}
@media (max-width: 480px) {
    .form-row { grid-template-columns: 1fr; }
}

/* ── Footer ──────────────────────────────────── */

.site-footer {
    background-color: var(--dark);
    color: rgba(255, 255, 255, 0.55);
    padding: 2.75rem 0;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.375rem;
    text-align: center;
}

.footer-logo {
    font-family: var(--serif);
    font-size: 1.0625rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.125rem;
}

.footer-tagline { font-size: 0.875rem; margin-bottom: 0.75rem; }
.footer-copy    { font-size: 0.8125rem; }

/* ── Accessibility ───────────────────────────── */

:focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
    border-radius: 2px;
}

/* ── Reduced motion ──────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 1ms !important;
        animation-duration: 1ms !important;
    }
    html { scroll-behavior: auto; }
}