/* =========================================================
   STEP 73-C SIGMA SPEAK AI PUBLIC LANDING PAGE
   ========================================================= */

:root {
    --page-bg: #ffffff;
    --soft-bg: #f7f7ff;
    --text: #171725;
    --muted: #66667a;
    --border: #e7e7ef;
    --primary: #6d5dfc;
    --primary-dark: #5748e8;
    --card-shadow:
        0 18px 55px rgba(38, 32, 90, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--page-bg);
    color: var(--text);
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1160px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(231, 231, 239, 0.8);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
}

.header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
}

.brand-mark {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 11px;
    background: var(--primary);
    color: #ffffff;
    font-size: 22px;
}

.brand-text {
    font-size: 18px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 14px;
    font-weight: 600;
}

.main-nav a {
    color: #515166;
}

.main-nav a:hover {
    color: var(--primary);
}

.main-nav .nav-cta {
    padding: 10px 17px;
    border-radius: 10px;
    background: var(--primary);
    color: #ffffff;
}

.main-nav .nav-cta:hover {
    background: var(--primary-dark);
    color: #ffffff;
}

.hero {
    padding: 86px 0 90px;
    overflow: hidden;
    background:
        radial-gradient(
            circle at 85% 10%,
            rgba(109, 93, 252, 0.13),
            transparent 30%
        ),
        linear-gradient(
            180deg,
            #ffffff 0%,
            #fafaff 100%
        );
}

.hero-grid {
    display: grid;
    grid-template-columns:
        minmax(0, 1.06fr)
        minmax(360px, 0.94fr);
    align-items: center;
    gap: 70px;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 16px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(44px, 6vw, 70px);
    line-height: 1.05;
    letter-spacing: -0.045em;
}

.hero-copy {
    max-width: 650px;
    margin: 26px 0 0;
    color: var(--muted);
    font-size: 19px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 22px;
    border-radius: 11px;
    font-size: 15px;
    font-weight: 800;
    transition:
        transform 0.15s ease,
        background 0.15s ease;
}

.button:hover {
    transform: translateY(-1px);
}

.button-primary {
    background: var(--primary);
    color: #ffffff;
}

.button-primary:hover {
    background: var(--primary-dark);
}

.button-secondary {
    border: 1px solid var(--border);
    background: #ffffff;
    color: var(--text);
}

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 28px;
    color: #5f5f70;
    font-size: 13px;
    font-weight: 650;
}

.hero-points span::before {
    content: "✓";
    margin-right: 6px;
    color: var(--primary);
    font-weight: 900;
}

.hero-card {
    position: relative;
    padding: 24px;
    border: 1px solid rgba(224, 224, 238, 0.95);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--card-shadow);
}

.hero-card::before {
    content: "";
    position: absolute;
    inset: 18px -24px -24px 18px;
    z-index: -1;
    border-radius: 24px;
    background: rgba(109, 93, 252, 0.06);
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: 9px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    font-weight: 800;
}

.status-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #3ac879;
    box-shadow:
        0 0 0 4px rgba(58, 200, 121, 0.12);
}

.coach-message,
.learner-message,
.feedback-card {
    margin-top: 18px;
    border-radius: 16px;
}

.coach-message {
    padding: 18px;
    background: #f6f5ff;
}

.coach-message p {
    margin: 8px 0 0;
    color: var(--muted);
}

.learner-message {
    margin-left: 42px;
    padding: 15px 17px;
    background: var(--primary);
    color: #ffffff;
}

.feedback-card {
    padding: 17px;
    border: 1px solid var(--border);
}

.feedback-card span {
    display: block;
    margin-bottom: 5px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.section {
    padding: 88px 0;
}

.section-soft {
    background: var(--soft-bg);
}

.section-heading {
    max-width: 720px;
    margin: 0 auto 46px;
    text-align: center;
}

.section-heading h2,
.final-cta h2 {
    margin: 0;
    font-size: clamp(32px, 4vw, 46px);
    line-height: 1.12;
    letter-spacing: -0.035em;
}

.section-heading p {
    margin: 16px 0 0;
    color: var(--muted);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.feature-card,
.mode-card,
.step {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #ffffff;
}

.feature-card {
    padding: 26px;
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    margin-bottom: 19px;
    border-radius: 12px;
    background: #f0efff;
    font-size: 20px;
}

.feature-card h3,
.mode-card h3,
.step h3 {
    margin: 0;
    font-size: 18px;
}

.feature-card p,
.mode-card p,
.step p {
    margin: 9px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.mode-card {
    padding: 28px;
}

.mode-label {
    display: inline-block;
    margin-bottom: 14px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.step {
    padding: 24px;
}

.step-number {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    font-weight: 800;
}

.final-cta {
    padding: 70px 0;
    background:
        linear-gradient(
            135deg,
            #5c4bf4,
            #7768ff
        );
    color: #ffffff;
}

.final-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 42px;
}

.final-cta-inner > div {
    max-width: 760px;
}

.final-cta p {
    margin: 17px 0 0;
    color: rgba(255, 255, 255, 0.82);
}

.eyebrow-light {
    color: rgba(255, 255, 255, 0.76);
}

.button-light {
    flex: 0 0 auto;
    background: #ffffff;
    color: #4f41dd;
}

.site-footer {
    padding: 52px 0 26px;
    background: #171721;
    color: #ffffff;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.footer-brand {
    max-width: 380px;
}

.footer-brand strong {
    font-size: 18px;
}

.footer-brand p {
    margin: 10px 0 0;
    color: #a6a6b5;
    font-size: 14px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 17px 24px;
    color: #c8c8d2;
    font-size: 13px;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-bottom {
    margin-top: 34px;
    padding-top: 22px;
    border-top: 1px solid #30303c;
    color: #878795;
    font-size: 12px;
}

@media (max-width: 900px) {
    .main-nav a:not(.nav-cta):not([href="/login"]) {
        display: none;
    }

    .hero {
        padding-top: 64px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 46px;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .mode-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 28px, 1160px);
    }

    .header-inner {
        min-height: 64px;
    }

    .brand-text {
        font-size: 16px;
    }

    .main-nav {
        gap: 10px;
    }

    .main-nav a[href="/login"] {
        display: none;
    }

    .main-nav .nav-cta {
        padding: 9px 14px;
    }

    .hero {
        padding: 54px 0 66px;
    }

    .hero h1 {
        font-size: clamp(39px, 12vw, 52px);
    }

    .hero-copy {
        font-size: 17px;
    }

    .button {
        width: 100%;
    }

    .hero-points {
        display: grid;
        gap: 8px;
    }

    .hero-card {
        padding: 18px;
        border-radius: 19px;
    }

    .hero-card::before {
        display: none;
    }

    .learner-message {
        margin-left: 20px;
    }

    .section {
        padding: 66px 0;
    }

    .feature-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }

    .final-cta-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-grid {
        flex-direction: column;
    }

    .footer-links {
        justify-content: flex-start;
    }
}

/* STEP 73-G3 HOME PRICING */

.home-pricing {
    background: #f8f7ff;
}

.home-pricing .section-heading p {
    max-width: 650px;
    margin: 14px auto 0;
    color: var(--muted);
}

.home-pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 42px;
}

.home-pricing-card {
    display: flex;
    flex-direction: column;
    padding: 30px;
    border: 1px solid #e5e3ef;
    border-radius: 20px;
    background: #ffffff;
}

.home-pricing-name {
    color: var(--primary);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
}

.home-pricing-price {
    display: flex;
    align-items: flex-start;
    gap: 4px;
    margin-top: 17px;
    color: #171721;
}

.home-pricing-currency {
    padding-top: 7px;
    font-size: 20px;
    font-weight: 700;
}

.home-pricing-price strong {
    font-size: 46px;
    line-height: 1;
    letter-spacing: -2px;
}

.home-pricing-duration {
    margin: 14px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.home-pricing-benefits {
    display: grid;
    gap: 11px;
    margin: 25px 0 28px;
    padding: 0;
    color: var(--muted);
    font-size: 14px;
    list-style: none;
}

.home-pricing-benefits li::before {
    content: "✓";
    margin-right: 9px;
    color: var(--primary);
    font-weight: 800;
}

.home-pricing-button {
    width: 100%;
    margin-top: auto;
    text-align: center;
}

@media (max-width: 900px) {
    .home-pricing-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .home-pricing-grid {
        margin-top: 30px;
    }

    .home-pricing-card {
        padding: 24px;
    }

    .home-pricing-price strong {
        font-size: 40px;
    }
}

/* STEP 73-H2B HOME TRUST + FAQ */

.home-trust {
    background: #ffffff;
}

.home-trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 42px;
}

.home-trust-card {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #ffffff;
}

.home-trust-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    margin-bottom: 18px;
    border-radius: 12px;
    background: #f0efff;
    color: var(--primary);
    font-size: 18px;
    font-weight: 800;
}

.home-trust-card h3 {
    margin: 0;
    font-size: 18px;
}

.home-trust-card p {
    margin: 9px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.home-faq {
    background: #f8f7ff;
}

.home-faq-list {
    max-width: 860px;
    margin: 40px auto 0;
    display: grid;
    gap: 12px;
}

.home-faq-item {
    border: 1px solid #e5e3ef;
    border-radius: 16px;
    background: #ffffff;
    overflow: hidden;
}

.home-faq-item summary {
    position: relative;
    padding: 20px 52px 20px 22px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 800;
    list-style: none;
}

.home-faq-item summary::-webkit-details-marker {
    display: none;
}

.home-faq-item summary::after {
    content: "+";
    position: absolute;
    top: 50%;
    right: 22px;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 22px;
    font-weight: 700;
}

.home-faq-item[open] summary::after {
    content: "−";
}

.home-faq-item p {
    margin: 0;
    padding: 0 22px 20px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.home-faq-help {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
    color: var(--muted);
    font-size: 14px;
}

.home-faq-help a {
    color: var(--primary);
    font-weight: 800;
}

@media (max-width: 900px) {
    .home-trust-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .home-trust-grid {
        margin-top: 30px;
    }

    .home-trust-card {
        padding: 24px;
    }

    .home-faq-list {
        margin-top: 30px;
    }

    .home-faq-item summary {
        padding:
            18px
            46px
            18px
            18px;
    }

    .home-faq-item summary::after {
        right: 18px;
    }

    .home-faq-item p {
        padding:
            0
            18px
            18px;
    }

    .home-faq-help {
        flex-wrap: wrap;
        text-align: center;
    }
}

/* STEP 73-H3 HOMEPAGE HOVER POLISH */

.feature-card,
.mode-card,
.step,
.hero-card,
.home-pricing-card,
.home-trust-card,
.home-faq-item {
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        border-color 0.2s ease,
        background-color 0.2s ease;
}

.feature-card:hover,
.mode-card:hover,
.step:hover,
.home-pricing-card:hover,
.home-trust-card:hover {
    transform: translateY(-5px);
    border-color: rgba(109, 93, 252, 0.28);
    box-shadow:
        0 18px 38px rgba(38, 32, 90, 0.10);
}

.hero-card:hover {
    transform: translateY(-3px);
    border-color: rgba(109, 93, 252, 0.24);
    box-shadow:
        0 24px 60px rgba(38, 32, 90, 0.12);
}

.home-faq-item:hover {
    border-color: rgba(109, 93, 252, 0.28);
    box-shadow:
        0 10px 26px rgba(38, 32, 90, 0.07);
}

.home-faq-item[open] {
    border-color: rgba(109, 93, 252, 0.32);
    box-shadow:
        0 12px 30px rgba(38, 32, 90, 0.08);
}

.feature-icon,
.home-trust-icon,
.step-number,
.brand-mark {
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.feature-card:hover .feature-icon,
.home-trust-card:hover .home-trust-icon,
.step:hover .step-number {
    transform: scale(1.06);
}

.brand:hover .brand-mark {
    transform: translateY(-1px) scale(1.04);
    box-shadow:
        0 8px 18px rgba(109, 93, 252, 0.20);
}

.button,
.nav-cta,
.home-pricing-button {
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        background-color 0.18s ease,
        border-color 0.18s ease;
}

.button:hover,
.nav-cta:hover,
.home-pricing-button:hover {
    transform: translateY(-2px);
}

.button-primary:hover,
.nav-cta:hover {
    box-shadow:
        0 10px 24px rgba(109, 93, 252, 0.24);
}

.button-secondary:hover,
.button-light:hover,
.home-pricing-button:hover {
    box-shadow:
        0 10px 24px rgba(38, 32, 90, 0.10);
}

.main-nav a:not(.nav-cta),
.footer-links a,
.home-faq-help a {
    transition:
        color 0.18s ease,
        opacity 0.18s ease;
}

.home-faq-item summary {
    transition:
        color 0.18s ease,
        background-color 0.18s ease;
}

.home-faq-item summary:hover {
    color: var(--primary);
    background: rgba(109, 93, 252, 0.035);
}

@media (prefers-reduced-motion: reduce) {
    .feature-card,
    .mode-card,
    .step,
    .hero-card,
    .home-pricing-card,
    .home-trust-card,
    .home-faq-item,
    .feature-icon,
    .home-trust-icon,
    .step-number,
    .brand-mark,
    .button,
    .nav-cta,
    .home-pricing-button {
        transition: none;
    }

    .feature-card:hover,
    .mode-card:hover,
    .step:hover,
    .hero-card:hover,
    .home-pricing-card:hover,
    .home-trust-card:hover,
    .button:hover,
    .nav-cta:hover,
    .home-pricing-button:hover {
        transform: none;
    }
}

@media (hover: none) {
    .feature-card:hover,
    .mode-card:hover,
    .step:hover,
    .hero-card:hover,
    .home-pricing-card:hover,
    .home-trust-card:hover {
        transform: none;
    }
}


/* =========================================
   STEP 75-D8 ADMIN LOGIN
   ========================================= */

.main-nav .admin-nav-link {
    padding: 7px 10px;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: 8px;
    color: inherit;
    font-size: 13px;
    opacity: .82;
}

.main-nav .admin-nav-link:hover,
.main-nav .admin-nav-link:focus-visible {
    opacity: 1;
    border-color: rgba(255,255,255,.34);
}