/* ScreenPulse landing page — same structure as dueloop.app, ScreenPulse brand colours
   (Color.spPrimary #6C5CE7 and the app icon's blue/cyan pulse). */
:root {
    --primary-color: #6C5CE7;
    --primary-dark: #5847D8;
    --gradient-start: #6C5CE7;
    --gradient-end: #3B82F6;
    --pulse: #22D3EE;
    --green: #00B894;
    --text-main: #0F172A;
    --text-secondary: #475569;
    --bg-color: #FFFFFF;
    --bg-secondary: #F7F7FC;
    --accent-bg: #F0EEFF;
    --border-color: #E4E4F0;
    --header-bg: rgba(255, 255, 255, 0.85);
    --card-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
    --glow: rgba(108, 92, 231, 0.22);
    --max-width: 1100px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #8B7CF6;
        --text-main: #F1F5F9;
        --text-secondary: #B6BED0;
        --bg-color: #0B0B1A;
        --bg-secondary: #13132A;
        --accent-bg: #1C1A42;
        --border-color: #2A2A4A;
        --header-bg: rgba(11, 11, 26, 0.85);
        --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        --glow: rgba(108, 92, 231, 0.35);
    }
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
}

body {
    font-family: var(--font);
    color: var(--text-main);
    background-color: var(--bg-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

img {
    max-width: 100%;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: linear-gradient(120deg, var(--gradient-start) 0%, var(--gradient-end) 60%, var(--pulse) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Header */
.header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.nav a[aria-current="page"] {
    color: var(--primary-color);
}

.nav .btn-sm,
.nav .btn-sm:hover {
    color: #FFFFFF;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

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

.app-store-button {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: #FFFFFF;
    padding: 14px 28px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 1.1rem;
    gap: 12px;
    box-shadow: 0 6px 18px rgba(108, 92, 231, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.app-store-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(108, 92, 231, 0.4);
}

.app-store-button small {
    display: block;
    font-size: 0.72rem;
    font-weight: 500;
    opacity: 0.85;
    line-height: 1.2;
}

.app-store-button span {
    line-height: 1.2;
    text-align: left;
}

/* Hero */
.hero {
    padding: 72px 0 56px;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--accent-bg);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-text h1 {
    font-size: clamp(2.4rem, 5vw, 3.3rem);
    line-height: 1.08;
    letter-spacing: -1.8px;
    margin-bottom: 24px;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-subtext {
    margin-top: 18px;
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 640px;
}

.hero-glow {
    position: absolute;
    inset: 8% 4%;
    background: radial-gradient(closest-side, var(--glow), transparent);
    filter: blur(10px);
    z-index: 0;
}

/* Phone frame: the raw captures are full-screen 1320×2868, so the inner radius
   matches an iPhone display (~12.9% of the width). */
.phone {
    position: relative;
    width: 290px;
    padding: 10px;
    border-radius: 15.5% / 7.4%;
    background: #0A0A12;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.06) inset,
        0 30px 70px rgba(30, 20, 90, 0.28),
        0 8px 20px rgba(15, 23, 42, 0.12);
    z-index: 1;
}

.phone img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 1320 / 2868;
    border-radius: 12.9% / 5.95%;
    background: var(--bg-secondary);
}

.phone.back {
    position: absolute;
    width: 250px;
    transform: translate(-46%, 6%) rotate(-7deg);
    opacity: 0.92;
    z-index: 0;
}

.chip {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px 10px 10px;
    border-radius: 14px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
    font-size: 0.85rem;
    line-height: 1.3;
    z-index: 2;
}

.chip strong {
    display: block;
    font-size: 0.9rem;
}

.chip span {
    color: var(--text-secondary);
}

.chip .chip-icon {
    flex: none;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.chip .chip-icon.warm {
    background: linear-gradient(135deg, #FF8A3D, #E17055);
}

.chip-1 {
    top: 16%;
    right: 2%;
}

.chip-2 {
    bottom: 13%;
    right: 6%;
}

/* Trust strip */
.trust {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.trust-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 22px 0;
    list-style: none;
}

.trust-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.trust-list svg {
    flex: none;
    color: var(--primary-color);
}

/* Sections */
.section {
    padding: 100px 0;
}

.section.alt {
    background-color: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin: 0 auto 60px;
    max-width: 760px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

/* How it works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.step-card {
    background: var(--bg-secondary);
    padding: 32px;
    border-radius: 18px;
    border: 1px solid var(--border-color);
}

.step-number {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    margin-bottom: 16px;
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.28);
}

.step-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-color);
    padding: 30px;
    border-radius: 18px;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(108, 92, 231, 0.15);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 13px;
    display: grid;
    place-items: center;
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    margin-bottom: 18px;
    box-shadow: 0 6px 16px rgba(108, 92, 231, 0.25);
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Screens gallery */
.gallery {
    display: flex;
    justify-content: center;
    gap: 28px;
    padding: 12px 20px 8px;
}

.shot {
    flex: 0 0 196px;
    text-align: center;
}

.shot:nth-child(even) {
    margin-top: 36px;
}

.shot .phone {
    width: 100%;
    padding: 7px;
}

.shot figcaption {
    margin-top: 16px;
    font-weight: 600;
    font-size: 0.95rem;
}

.shot figcaption .sub {
    display: block;
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tag {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    vertical-align: 2px;
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    align-items: stretch;
    max-width: 880px;
    margin: 0 auto;
}

.price-card {
    position: relative;
    background: var(--bg-color);
    padding: 34px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
}

.price-card.featured {
    border: 2px solid var(--primary-color);
    box-shadow: 0 18px 50px rgba(108, 92, 231, 0.2);
}

.price-badge {
    position: absolute;
    top: -13px;
    left: 34px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.price-card h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.price {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
}

.price small {
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--text-secondary);
}

.price-subtext {
    color: var(--text-secondary);
    margin: 6px 0 20px;
    font-size: 0.95rem;
}

.price-list {
    list-style: none;
    margin: 0 0 28px;
    display: grid;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.price-list li {
    position: relative;
    padding-left: 26px;
}

.price-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4.5 8.2l2.3 2.3 4.7-4.9'/%3E%3C/svg%3E") center / 16px no-repeat;
}

.price-list strong {
    color: var(--text-main);
    font-weight: 600;
}

.price-cta {
    margin-top: auto;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: #FFFFFF;
    padding: 12px 20px;
}

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

.price-cta.secondary {
    background: var(--bg-secondary);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.price-cta.secondary:hover {
    background: var(--border-color);
}

.pricing-note {
    max-width: 760px;
    margin: 28px auto 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Privacy */
.privacy-card {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: center;
    padding: 48px;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--accent-bg) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border-color);
}

.privacy-card h2 {
    font-size: clamp(1.9rem, 3.6vw, 2.4rem);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.privacy-card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.privacy-card .link-arrow {
    margin-top: 18px;
}

.privacy-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    list-style: none;
}

.privacy-points li {
    padding: 18px;
    border-radius: 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
}

.privacy-points strong {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.privacy-points svg {
    color: var(--green);
    flex: none;
}

.privacy-points span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* FAQ */
.faq-list {
    max-width: 860px;
    margin: 0 auto;
    display: grid;
    gap: 12px;
}

.faq-item {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}

.faq-item summary {
    list-style: none;
    padding: 18px 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

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

.faq-item summary::after {
    content: "+";
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.faq-item p {
    padding: 0 20px 18px;
    color: var(--text-secondary);
}

/* CTA */
.cta-card {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    padding: 56px 44px;
    text-align: center;
    color: #FFFFFF;
    background: linear-gradient(135deg, #2A1B8F 0%, var(--gradient-start) 45%, var(--gradient-end) 100%);
}

/* The pulse runs through the icon, like a heart-rate trace. */
.cta-card .cta-pulse {
    position: absolute;
    left: 0;
    right: 0;
    top: 92px;
    width: 100%;
    transform: translateY(-50%);
    opacity: 0.3;
    pointer-events: none;
}

.cta-card > *:not(.cta-pulse) {
    position: relative;
}

.cta-card img.cta-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    margin-bottom: 20px;
}

.cta-card h2 {
    font-size: clamp(1.9rem, 4vw, 2.4rem);
    letter-spacing: -0.8px;
    margin-bottom: 12px;
}

.cta-card p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.08rem;
    max-width: 620px;
    margin: 0 auto;
}

.cta-actions {
    margin-top: 28px;
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-card .app-store-button {
    background: #FFFFFF;
    color: #1E1466;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.25);
}

.cta-secondary {
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 14px 24px;
    border-radius: 14px;
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
}

.link-arrow {
    display: inline-block;
    font-weight: 600;
    color: var(--primary-color);
}

.link-arrow:hover {
    text-decoration: underline;
}

/* Legal & support pages */
.legal {
    max-width: 760px;
    padding-top: 64px;
    padding-bottom: 88px;
}

.legal h1 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    line-height: 1.15;
    letter-spacing: -1px;
}

.legal .updated {
    margin: 8px 0 32px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.legal h2 {
    font-size: 1.25rem;
    letter-spacing: -0.3px;
    margin: 40px 0 12px;
}

.legal p,
.legal ul {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.legal ul {
    display: grid;
    gap: 10px;
    padding-left: 22px;
}

.legal strong {
    color: var(--text-main);
}

.legal a {
    color: var(--primary-color);
    font-weight: 500;
    overflow-wrap: anywhere;
}

.legal a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.logo-small {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}

.logo-small img {
    width: 22px;
    height: 22px;
    border-radius: 6px;
}

.footer-col.links {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-col.links a:hover {
    color: var(--primary-color);
}

/* Tablet */
@media (max-width: 1040px) {
    .gallery {
        justify-content: flex-start;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scrollbar-width: none;
        padding-bottom: 20px;
    }

    .gallery::-webkit-scrollbar {
        display: none;
    }

    .shot {
        scroll-snap-align: center;
    }

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

    .privacy-card {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .header {
        padding: 14px 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background-color: var(--bg-color);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 20px 20px;
        gap: 0;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-8px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.25s ease;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav a {
        font-size: 1.05rem;
        padding: 12px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav a.btn-sm {
        margin-top: 14px;
        border-bottom: none;
        padding: 12px 16px;
    }

    .hero {
        padding: 44px 0 32px;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 28px;
    }

    .hero-text p {
        margin: 0 auto 28px;
        font-size: 1.1rem;
    }

    .hero-visual {
        min-height: 540px;
    }

    .phone {
        width: 240px;
    }

    .phone.back {
        width: 200px;
        transform: translate(-40%, 6%) rotate(-7deg);
    }

    .chip-1 {
        top: 10%;
        right: 0;
    }

    .chip-2 {
        bottom: 8%;
        right: 0;
    }

    .section {
        padding: 72px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .legal {
        padding-top: 40px;
        padding-bottom: 64px;
    }

    .trust-list {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 20px 0;
    }

    .shot {
        flex-basis: 180px;
    }

    .feature-card,
    .step-card {
        padding: 24px;
    }

    .feature-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 14px;
    }

    .privacy-points li {
        padding: 14px 16px;
    }

    .shot:nth-child(even) {
        margin-top: 0;
    }

    .privacy-card {
        padding: 28px 22px;
        gap: 28px;
    }

    .privacy-points {
        grid-template-columns: 1fr;
    }

    .cta-card {
        padding: 40px 22px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-col.links {
        justify-content: center;
        gap: 16px 24px;
    }
}

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

    *,
    *::before,
    *::after {
        transition: none !important;
    }
}