/* Explain: Styles for navigation, buttons, hero, and timeline components. */
.site-header {
    border-bottom: 1px solid transparent;
    background: transparent;
    transition: background 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.site-header.is-scrolled {
    border-bottom-color: var(--border-color);
    background: rgba(250, 249, 246, 0.88);
    box-shadow: 0 12px 40px rgba(31, 46, 35, 0.06);
    backdrop-filter: blur(18px);
}

.nav-brand {
    color: var(--accent-color);
}

.nav-link {
    position: relative;
    color: var(--text-muted);
    transition: color 250ms ease;
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--primary-color);
}

.nav-link.is-active::after {
    position: absolute;
    right: 0;
    bottom: -0.6rem;
    left: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--accent-color);
    content: "";
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--sage-dark);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.section-kicker::before {
    display: inline-block;
    width: 2.2rem;
    height: 1px;
    background: var(--accent-color);
    content: "";
}

.glass-panel {
    border: 1px solid var(--glass-border);
    background: linear-gradient(145deg, rgba(250, 249, 246, 0.82), rgba(255, 255, 255, 0.5));
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
}

.btn-crown {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 3rem;
    padding: 0.85rem 1.75rem;
    border: 1px solid transparent;
    border-radius: 999px;
    background: var(--primary-color);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: var(--shadow-button);
    transition: transform 250ms ease, background 250ms ease;
}

.btn-crown:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 3rem;
    padding: 0.85rem 1.75rem;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--glass-bg);
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 600;
    backdrop-filter: blur(12px);
    transition: transform 250ms ease, border-color 250ms ease, background 250ms ease;
}

.btn-ghost:hover {
    border-color: var(--accent-color);
    background: var(--surface-color);
    transform: translateY(-2px);
}

.icon-badge {
    display: inline-flex;
    width: 3rem;
    height: 3rem;
    align-items: center;
    justify-content: center;
    border-radius: 1.1rem;
    background: var(--sage-soft);
    color: var(--accent-color);
    font-size: 1.2rem;
}

.service-card,
.value-card,
.step-card,
.industry-card,
.case-card,
.testimonial-card,
.compare-card {
    border: 1px solid var(--glass-border);
    border-radius: 1.8rem;
    background: rgba(250, 249, 246, 0.6);
    transition: transform 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.service-card:hover,
.industry-card:hover,
.case-card:hover,
.value-card:hover {
    border-color: rgba(88, 129, 87, 0.55);
    box-shadow: 0 26px 70px rgba(31, 46, 35, 0.1);
    transform: translateY(-6px);
}

.step-card {
    position: relative;
    padding: 1.75rem;
}

.step-number {
    display: inline-flex;
    margin-bottom: 1rem;
    color: var(--accent-color);
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
}

.process-timeline {
    position: relative;
    display: grid;
    gap: 2.25rem;
}

.process-timeline::before {
    position: absolute;
    top: 1.5rem;
    bottom: 1.5rem;
    left: 1.5rem;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-color) 0%, rgba(88, 129, 87, 0.12) 100%);
    content: "";
}

.process-step {
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: 1.5rem;
    align-items: start;
}

.process-node {
    position: relative;
    z-index: 1;
    display: inline-flex;
    width: 3rem;
    height: 3rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--background-color);
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    box-shadow: var(--shadow-soft);
    transition: background 300ms ease, color 300ms ease, transform 300ms ease;
}

.process-step:hover .process-node {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

.process-body h3 {
    transition: color 300ms ease;
}

.process-step:hover .process-body h3 {
    color: var(--primary-color);
}

.case-metric {
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.tool-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: rgba(250, 249, 246, 0.6);
    padding: 0.7rem 1.15rem;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--text-color);
}

.stat-value {
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    margin-top: 0.55rem;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.floating-stat {
    position: absolute;
    right: -0.5rem;
    bottom: -1.5rem;
    display: flex;
    max-width: 210px;
    flex-direction: column;
    gap: 0.2rem;
    border-radius: 1.5rem;
    padding: 1rem 1.25rem;
}

.floating-stat strong {
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-size: 1.5rem;
}

.floating-stat span {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.faq-item {
    border: 1px solid var(--glass-border);
    border-radius: 1.4rem;
    background: rgba(250, 249, 246, 0.6);
    overflow: hidden;
}

.faq-question {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: transparent;
    color: var(--text-color);
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
}

.faq-icon {
    color: var(--accent-color);
    transition: transform 300ms ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.8;
    transition: max-height 350ms ease, padding 350ms ease;
}

.faq-item.is-open .faq-answer {
    max-height: 24rem;
    padding-bottom: 1.4rem;
}

.faq-item.is-open .faq-icon {
    transform: rotate(180deg);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.form-field {
    width: 100%;
    min-height: 3rem;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--field-bg);
    padding: 0.75rem 1.25rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-field:focus {
    border-color: var(--accent-color);
    outline: none;
}

.form-status {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.form-status.success {
    color: var(--primary-color);
}

.form-status.error {
    color: #9B4A3D;
}

.nav-overlay {
    background: var(--background-color);
}

.back-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 50;
    display: inline-flex;
    width: 3rem;
    height: 3rem;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: var(--primary-color);
    color: #ffffff;
    box-shadow: var(--shadow-button);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 300ms ease, transform 300ms ease;
}

.back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

@media (max-width: 767px) {
    .section-kicker::before {
        width: 1.5rem;
    }

    .floating-stat {
        position: relative;
        right: auto;
        bottom: auto;
        margin: -2rem auto 0;
        max-width: 240px;
    }
}