/* Accessibility, brand and responsive refinements */
body {
    letter-spacing: -0.006em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    letter-spacing: -0.03em;
    text-wrap: balance;
}

p {
    text-wrap: pretty;
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 10000;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    background: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-160%);
    transition: transform var(--transition-fast);
}

.skip-link:focus {
    color: var(--color-white);
    transform: translateY(0);
}

.navbar__logo-img {
    width: 188px;
    height: auto;
    max-height: 54px;
}

.hero__title {
    max-width: 760px;
    font-size: clamp(2.75rem, 6vw, 4.75rem);
    letter-spacing: -0.045em;
}

.hero__subtitle,
.section-header .subtitle {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.section-header {
    max-width: 760px;
}

.section-header h2 {
    position: relative;
    padding-bottom: 1rem;
}

.section-header h2::after {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 42px;
    height: 3px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    content: "";
    transform: translateX(-50%);
}

.card {
    border-color: rgba(26, 46, 74, 0.12);
    box-shadow: 0 16px 42px rgba(15, 29, 48, 0.06);
}

.card:hover {
    border-color: rgba(26, 46, 74, 0.28);
}

.card__icon {
    position: relative;
    width: 52px;
    height: 52px;
    border: 1px solid rgba(26, 46, 74, 0.28);
    border-radius: 14px;
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.card__icon::after {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 9px;
    height: 9px;
    border: 2px solid var(--color-white);
    border-radius: 50%;
    background: var(--color-accent);
    content: "";
}

.service-card__index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 30px;
    margin-bottom: 0.8rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 999px;
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.stats-bar__item {
    position: relative;
    padding-top: 1rem;
}

.stats-bar__item::before {
    position: absolute;
    top: 0;
    left: 50%;
    width: 28px;
    height: 2px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    content: "";
    transform: translateX(-50%);
}

.footer__wordmark {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 800;
    letter-spacing: 0.04em;
}

.footer__wordmark:hover {
    color: var(--color-accent);
}

.trust-bar__value {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.form-feedback[tabindex="-1"]:focus {
    outline: none;
}

.form-feedback a {
    color: inherit;
    text-decoration: underline;
}

.form-error {
    display: block;
}

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

button:disabled {
    cursor: wait;
    opacity: 0.7;
}

.faq-item__question[aria-expanded="true"] {
    color: var(--color-primary);
}

.project-card__eyebrow {
    display: inline-block;
    margin-top: 0.75rem;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-full);
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    font-size: var(--text-xs);
    font-weight: 600;
}

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

.solar-check {
    overflow: hidden;
    border: 1px solid rgba(26, 46, 74, 0.14);
    border-radius: 1.5rem;
    background: var(--color-white);
    box-shadow: 0 24px 70px rgba(15, 29, 48, 0.1);
}

.solar-check__progress {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-gray-200);
    background: var(--color-gray-50);
}

.solar-check__progress-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.7rem;
    color: var(--color-primary);
    font-size: var(--text-sm);
    font-weight: 600;
}

.solar-check__progress-track {
    height: 5px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--color-gray-200);
}

.solar-check__progress-bar {
    display: block;
    width: 20%;
    height: 100%;
    border-radius: inherit;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.solar-check__body {
    padding: clamp(1.5rem, 5vw, 3rem);
}

.solar-check__step[hidden] {
    display: none;
}

.solar-check__step h2 {
    margin-bottom: 0.75rem;
    font-size: clamp(1.6rem, 4vw, 2.25rem);
}

.solar-check__intro {
    max-width: 620px;
    margin-bottom: 1.75rem;
}

.solar-check__choices {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
}

.solar-choice {
    position: relative;
    display: block;
    cursor: pointer;
}

.solar-choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.solar-choice__content {
    display: flex;
    min-height: 82px;
    flex-direction: column;
    justify-content: center;
    padding: 1rem 1.15rem;
    border: 2px solid var(--color-gray-200);
    border-radius: 1rem;
    background: var(--color-white);
    transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.solar-choice__title {
    color: var(--color-primary);
    font-weight: 700;
}

.solar-choice__hint {
    margin-top: 0.15rem;
    color: var(--color-gray-500);
    font-size: var(--text-xs);
}

.solar-choice input:checked + .solar-choice__content {
    border-color: var(--color-primary);
    background: #f4f7fb;
    box-shadow: inset 4px 0 0 var(--color-accent);
}

.solar-choice input:focus-visible + .solar-choice__content {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
}

.solar-check__actions {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
}

.solar-check__actions--end {
    align-items: center;
}

.solar-check fieldset {
    min-width: 0;
    border: 0;
}

.solar-check fieldset[aria-invalid="true"] {
    border-radius: var(--radius-lg);
}

.mobile-solar-cta {
    display: none;
}

@media (max-width: 1100px) {
    .navbar__nav {
        display: none;
    }

    .navbar__toggle {
        display: flex;
    }

    .navbar__nav.active {
        position: absolute;
        top: 80px;
        right: 0;
        left: 0;
        display: flex;
        max-height: calc(100vh - 80px);
        flex-direction: column;
        overflow-y: auto;
        padding: var(--space-6);
        border-top: 1px solid var(--color-gray-200);
        background: var(--color-white);
        box-shadow: var(--shadow-lg);
    }

    .navbar__cta {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .navbar__logo-img {
        width: 148px;
        max-height: 44px;
    }

    .navbar__inner {
        height: 72px;
    }

    .navbar__nav.active {
        top: 72px;
        max-height: calc(100vh - 72px);
        overflow-y: auto;
    }

    .hero {
        padding-top: 72px;
    }

    .hero__content {
        padding: var(--space-12) 0;
    }

    .hero__buttons .btn {
        width: 100%;
    }

    .solar-check__choices {
        grid-template-columns: 1fr;
    }

    .solar-check__body {
        padding: 1.35rem;
    }

    .solar-check__actions {
        flex-wrap: wrap;
    }

    .solar-check__actions .btn {
        flex: 1 1 140px;
    }

    .mobile-solar-cta {
        position: fixed;
        right: 1rem;
        bottom: max(1rem, env(safe-area-inset-bottom));
        z-index: 900;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 48px;
        padding: 0.75rem 1.1rem;
        border: 2px solid var(--color-primary-dark);
        border-radius: 999px;
        background: var(--color-accent);
        box-shadow: 0 12px 30px rgba(15, 29, 48, 0.28);
        color: var(--color-primary-dark);
        font-size: var(--text-sm);
        font-weight: 700;
    }

    .mobile-solar-cta:hover {
        color: var(--color-primary-dark);
    }

    body {
        padding-bottom: 5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }

    .fade-in,
    .fade-in-left,
    .fade-in-right {
        opacity: 1;
        transform: none;
    }
}