/* ── PLATFORM SECTION (What does it do) ── */

.platform-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, var(--bg-deep) 0%, #0a0920 40%, var(--bg-deep) 100%);
    border-top: 1px solid var(--rule);
    padding: var(--nav-height) 0 4rem;
}

.platform-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.platform-headline {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: 2rem;
}

.platform-body {
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
    font-weight: 300;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.48);
    max-width: 720px;
    margin: 0 auto 4rem;
}

.platform-capabilities {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.platform-capabilities .feature-card {
    text-align: left;
}

/* ── SHARED SECTION STYLES ── */

.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 7rem 2rem;
}

.section-kicker {
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-kicker::before {
    content: '';
    display: block;
    width: 24px;
    height: 1px;
    background: var(--gold);
}

.section-headline {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.section-headline em {
    font-style: italic;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.6);
}

.section-body {
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.45);
    max-width: 560px;
    margin-bottom: 3.5rem;
}

/* ── FEATURE CARDS (shared) ── */

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
    opacity: 0;
    transform: translateY(16px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-text);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    border-color: rgba(255, 138, 0, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--white);
}

.feature-card p {
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.45);
}

/* ── HOW IT WORKS DETAIL SECTION ── */

.how-it-works-detail {
    background: var(--bg-section);
    border-top: 1px solid var(--rule);
}

.hiw-contrast {
    max-width: 640px;
    color: rgba(255, 255, 255, 0.42);
    margin-bottom: 1.5rem;
}

.hiw-contrast-accent {
    max-width: 640px;
    color: rgba(255, 255, 255, 0.58);
    font-weight: 400;
    font-style: italic;
    margin-bottom: 4rem;
}

.pillar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.pillar-card {
    background: var(--bg-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: left;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
    opacity: 0;
    transform: translateY(16px);
    position: relative;
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-text);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.pillar-card:hover::before {
    transform: scaleX(1);
}

.pillar-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.pillar-card:hover {
    border-color: rgba(255, 138, 0, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

.pillar-icon {
    font-size: 1.8rem;
    margin-bottom: 1.25rem;
}

.pillar-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.pillar-subtitle {
    font-size: 0.9rem;
    font-weight: 400;
    font-style: italic;
    color: var(--gold);
    margin-bottom: 1rem;
    opacity: 0.8;
}

.pillar-card p:last-child {
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.45);
}

/* ── USE CASES SECTION ── */

.use-cases {
    background: var(--bg-deep);
    border-top: 1px solid var(--rule);
}

/* Persona tabs */
.persona-tabs {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.persona-tab {
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--rule);
    border-radius: var(--radius-pill);
    padding: 0.6rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.persona-tab.active {
    color: var(--bg-deep);
    background: var(--gold);
    border-color: var(--gold);
}

.persona-tab.tbc {
    opacity: 0.4;
    cursor: default;
}

.tbc-badge {
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.6;
    margin-left: 0.25rem;
}

/* Use case panels */
.use-case-panels {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.use-case-panel {
    background: var(--bg-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
    opacity: 0;
    transform: translateY(16px);
}

.use-case-panel.visible {
    opacity: 1;
    transform: translateY(0);
}

.use-case-panel:hover {
    border-color: rgba(255, 138, 0, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

/* Make the 5th panel span full width */
.use-case-panel:nth-child(5) {
    grid-column: 1 / -1;
}

.panel-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1;
}

.use-case-panel h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--white);
}

.use-case-panel p {
    font-size: 0.95rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.45);
}

.panel-accent {
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.62) !important;
    font-style: italic;
    font-weight: 400 !important;
}

/* ── HOW IT STARTS SECTION ── */

.how-it-starts {
    background: var(--bg-section);
    border-top: 1px solid var(--rule);
}

.timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    position: relative;
}

/* Connecting line removed — it was cutting through the step cards */

.timeline-step {
    background: var(--bg-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
    position: relative;
    transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
    opacity: 0;
    transform: translateY(16px);
}

.timeline-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-step:hover {
    border-color: rgba(255, 138, 0, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 1.25rem;
}

.timeline-step h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--white);
}

.timeline-step p {
    font-size: 0.92rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.42);
}

/* ── ENTERPRISE TRUST SECTION ── */

.enterprise-trust {
    background: var(--bg-deep);
    border-top: 1px solid var(--rule);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* Last two items in a centered row */
.trust-item:nth-child(4),
.trust-item:nth-child(5) {
    grid-column: auto;
}

.trust-item {
    background: var(--bg-card);
    border: 1px solid var(--rule);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
    opacity: 0;
    transform: translateY(16px);
}

.trust-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.trust-item:hover {
    border-color: rgba(255, 138, 0, 0.2);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

.trust-badge {
    font-size: 2rem;
    margin-bottom: 1.25rem;
    filter: drop-shadow(0 0 8px rgba(255, 138, 0, 0.2));
}

.trust-item h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: var(--white);
}

.trust-item p {
    font-size: 0.92rem;
    font-weight: 300;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.42);
}

.trust-closing {
    margin-top: 3rem;
    font-size: 1.1rem;
    font-weight: 400;
    font-style: italic;
    color: rgba(255, 255, 255, 0.58);
    text-align: center;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}