/* =============================================
   Crisis Input Landing Page — Stylesheet
   ============================================= */

/* --- Reset & Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg: #ffffff;
    --color-bg-alt: #f7f8fa;
    --color-bg-dark: #0f1729;
    --color-text: #1a1a2e;
    --color-text-muted: #5a5f72;
    --color-text-light: #ffffff;
    --color-primary: #1b4dff;
    --color-primary-dark: #1240d4;
    --color-primary-light: #e8eeff;
    --color-accent: #00c2a8;
    --color-border: #e2e5ec;
    --color-danger: #dc3545;
    --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --container-max: 1200px;
    --container-narrow: 820px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.1);
    --transition: .2s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--color-primary-dark);
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.container--narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: 5rem 0;
}
.section:nth-child(even) {
    background: var(--color-bg-alt);
}

.section__title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    text-align: center;
}
.section__intro {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: .9375rem;
    line-height: 1;
    padding: .75rem 1.5rem;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}
.btn--primary {
    background: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}
.btn--primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-text-light);
}
.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn--outline:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
}
.btn--sm {
    padding: .5rem 1rem;
    font-size: .875rem;
}
.btn--lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}
.nav--scrolled {
    box-shadow: var(--shadow-sm);
}
.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.nav__logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -.02em;
}
.nav__logo:hover {
    color: var(--color-primary);
}
.nav__links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    list-style: none;
}
.nav__links a {
    font-size: .875rem;
    font-weight: 500;
    color: var(--color-text-muted);
}
.nav__links a:hover {
    color: var(--color-text);
}
.nav__toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}
.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

/* --- Hero --- */
.hero {
    padding: 8rem 0 5rem;
    background: linear-gradient(170deg, var(--color-bg) 40%, var(--color-primary-light) 100%);
}
.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.hero__title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -.02em;
    margin-bottom: 1.25rem;
}
.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 2rem;
}
.hero__ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.hero__placeholder {
    background: var(--color-bg-alt);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: .875rem;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Problem --- */
.problem__text {
    font-size: 1.0625rem;
    line-height: 1.8;
}
.problem__text p + p {
    margin-top: 1.25rem;
}

/* --- Steps (How it works) --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 3rem;
}
.step {
    text-align: center;
    padding: 2rem;
}
.step__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    color: var(--color-primary);
}
.step__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: .75rem;
}
.step__text {
    color: var(--color-text-muted);
    font-size: .9375rem;
    line-height: 1.7;
}

/* --- Benefits --- */
.benefits__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}
.benefit {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}
.benefit:hover {
    box-shadow: var(--shadow-md);
}
.benefit__title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: .75rem;
    line-height: 1.3;
}
.benefit__text {
    color: var(--color-text-muted);
    font-size: .9375rem;
    line-height: 1.7;
}

/* --- Features --- */
.feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}
.feature:last-child {
    margin-bottom: 0;
}
.feature--reverse {
    direction: rtl;
}
.feature--reverse > * {
    direction: ltr;
}
.feature__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}
.feature__content p {
    color: var(--color-text-muted);
    font-size: .9375rem;
    line-height: 1.8;
}
.feature__placeholder {
    background: var(--color-bg-alt);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: .875rem;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Use Cases --- */
.use-cases__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}
.use-case {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}
.use-case:hover {
    box-shadow: var(--shadow-md);
}
.use-case__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    color: var(--color-primary);
}
.use-case__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: .25rem;
}
.use-case__subtitle {
    font-size: .875rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    font-weight: 500;
}
.use-case__text {
    color: var(--color-text-muted);
    font-size: .9375rem;
    line-height: 1.7;
}

/* --- Comparison Table --- */
.comparison__table-wrap {
    overflow-x: auto;
    margin-top: 2.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}
.comparison__table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}
.comparison__table th,
.comparison__table td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.comparison__table th {
    background: var(--color-bg-alt);
    font-weight: 700;
    font-size: .8125rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--color-text-muted);
}
.comparison__table th.comparison__highlight,
.comparison__table td.comparison__highlight {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    font-weight: 600;
}
.comparison__table th.comparison__highlight {
    color: var(--color-primary);
}
.comparison__table tbody tr:last-child td {
    border-bottom: none;
}

/* --- Trust / Security --- */
.trust__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}
.trust__item {
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}
.trust__icon {
    width: 40px;
    height: 40px;
    margin-bottom: 1rem;
    color: var(--color-primary);
}
.trust__item h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: .5rem;
}
.trust__item p {
    color: var(--color-text-muted);
    font-size: .875rem;
    line-height: 1.7;
}

/* --- FAQ --- */
.faq__list {
    margin-top: 2.5rem;
}
.faq__item {
    border-bottom: 1px solid var(--color-border);
}
.faq__item:first-child {
    border-top: 1px solid var(--color-border);
}
.faq__question {
    padding: 1.25rem 0;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq__question::-webkit-details-marker {
    display: none;
}
.faq__question::after {
    content: "+";
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-text-muted);
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 1rem;
}
.faq__item[open] .faq__question::after {
    content: "−";
}
.faq__answer {
    padding-bottom: 1.25rem;
}
.faq__answer p {
    color: var(--color-text-muted);
    font-size: .9375rem;
    line-height: 1.7;
}

/* --- CTA / Demo Form --- */
.cta {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: 5rem 0;
}
.cta__title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
    margin-bottom: 1rem;
}
.cta__text {
    font-size: 1.0625rem;
    text-align: center;
    color: rgba(255,255,255,.7);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}
.cta__form-wrapper {
    max-width: 560px;
    margin: 0 auto;
}
.cta__form {
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-lg);
    padding: 2rem;
}
.form__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form__field--full {
    grid-column: 1 / -1;
}
.cta__form input,
.cta__form textarea {
    width: 100%;
    padding: .75rem 1rem;
    font-family: var(--font-family);
    font-size: .9375rem;
    color: var(--color-text-light);
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius);
    outline: none;
    transition: border-color var(--transition);
}
.cta__form input::placeholder,
.cta__form textarea::placeholder {
    color: rgba(255,255,255,.4);
}
.cta__form input:focus,
.cta__form textarea:focus {
    border-color: var(--color-primary);
}
.cta__form textarea {
    resize: vertical;
}
.form__actions {
    margin-top: 1.25rem;
    text-align: center;
}
.form__actions .btn {
    width: 100%;
}
.cta__secondary {
    text-align: center;
    margin-top: 1.25rem;
    font-size: .875rem;
    color: rgba(255,255,255,.5);
}
.cta__secondary a {
    color: var(--color-accent);
}
.cta__secondary a:hover {
    text-decoration: underline;
}

/* --- Footer --- */
.footer {
    padding: 3rem 0 2rem;
    background: var(--color-bg-dark);
    border-top: 1px solid rgba(255,255,255,.08);
    color: rgba(255,255,255,.5);
    font-size: .875rem;
}
.footer__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.footer__logo {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-text-light);
}
.footer__tagline {
    font-size: .8125rem;
    margin-top: .25rem;
}
.footer__links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.footer__links a {
    color: rgba(255,255,255,.5);
    font-size: .8125rem;
}
.footer__links a:hover {
    color: var(--color-text-light);
}
.footer__legal {
    width: 100%;
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,.06);
    font-size: .8125rem;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero__inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .hero__title {
        font-size: 2.25rem;
    }
    .benefits__grid,
    .trust__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .feature,
    .feature--reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 3.5rem 0;
    }
    .section__title {
        font-size: 1.625rem;
    }
    .hero {
        padding: 6rem 0 3rem;
    }
    .hero__title {
        font-size: 1.875rem;
    }
    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .benefits__grid,
    .use-cases__grid,
    .trust__grid {
        grid-template-columns: 1fr;
    }
    .form__grid {
        grid-template-columns: 1fr;
    }
    .nav__links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 1.5rem;
        gap: 1rem;
        box-shadow: var(--shadow-md);
    }
    .nav__links.is-open {
        display: flex;
    }
    .nav__toggle {
        display: flex;
    }
}