/* ═══════════════════════════════════════════════════════════════
   Zoundream Store — Landing Page Design System
   landing.css v1.0.0

   Sections:
   00. CSS Custom Properties (Design Tokens)
   01. Reset & Base
   02. Layout Utilities
   03. Typography
   04. Buttons
   05. Header / Navigation
   06. HERO Section
   07. Trust Strip
   08. Problem Section
   09. Offer Section
   10. How It Works
   11. Pricing Section
   12. Testimonials
   13. FAQ Section
   14. Signup Form
   15. Final CTA Bar
   16. Footer
   17. Reveal Animations
   18. Responsive Overrides
   ═══════════════════════════════════════════════════════════════ */

/* ═══ 00. CSS CUSTOM PROPERTIES ════════════════════════════════ */
:root {
    /* Brand Colours */
    --color-primary: #33468f;
    --color-primary-dark: #27357a;
    --color-primary-light: #4a5fb5;
    --color-accent: #4a90d9;
    --color-accent-light: #6baee9;

    /* Backgrounds */
    --color-white: #ffffff;
    --color-soft: #f0f4ff;
    --color-soft-mid: #e4eaff;
    --color-mid: #c5d0f5;
    --color-dark: #1a1f3d;
    --color-dark-2: #12162c;

    /* Text */
    --color-text: #2c2e42;
    --color-text-muted: #6b7094;
    --color-text-light: rgba(255, 255, 255, 0.85);

    /* Borders */
    --color-border: #dce4f5;
    --color-border-dark: rgba(255, 255, 255, 0.12);

    /* Success */
    --color-success: #22c55e;
    --color-success-light: #dcfce7;

    /* Typography */
    --font-heading: 'Libre Baskerville', Georgia, serif;
    --font-body: 'Nunito', 'Segoe UI', sans-serif;
    --font-ui: 'Poppins', 'Segoe UI', sans-serif;

    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;

    /* Layout */
    --container-max: 1200px;
    --container-pad: clamp(20px, 5vw, 80px);
    --section-padding: clamp(60px, 8vw, 120px);

    /* Borders & Shadows */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --shadow-sm: 0 2px 8px rgba(51, 70, 143, 0.08);
    --shadow-md: 0 8px 32px rgba(51, 70, 143, 0.12);
    --shadow-lg: 0 20px 60px rgba(51, 70, 143, 0.18);
    --shadow-glow: 0 0 40px rgba(74, 144, 217, 0.25);

    /* Transitions */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in: cubic-bezier(0.64, 0, 0.78, 0);
    --tran-fast: 0.15s var(--ease-out);
    --tran-mid: 0.3s var(--ease-out);
    --tran-slow: 0.5s var(--ease-out);
}

/* ═══ 01. RESET & BASE ═════════════════════════════════════════ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body.zd-landing-page {
    background: var(--color-white);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--tran-fast);
}

a:hover {
    color: var(--color-accent);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input,
select,
textarea {
    font-family: inherit;
}

/* ═══ 02. LAYOUT UTILITIES ═════════════════════════════════════ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

.zd-section {
    padding-block: var(--section-padding);
}

/* Alternating section backgrounds */
.zd-offer,
.zd-testimonials {
    background: var(--color-soft);
}

/* ═══ 03. TYPOGRAPHY ════════════════════════════════════════════ */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--color-dark);
    font-weight: 700;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
}

h2 {
    font-size: clamp(1.7rem, 3.5vw, 2.6rem);
}

h3 {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
}

h4 {
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
}

p {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.zd-section-header {
    text-align: center;
    max-width: 700px;
    margin-inline: auto;
    margin-bottom: var(--space-16);
}

.zd-section-header h2 {
    margin-block: var(--space-4) var(--space-6);
}

.zd-eyebrow {
    display: inline-block;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: var(--color-soft-mid);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
}

.zd-eyebrow-light {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.zd-section-sub {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 600px;
    margin-inline: auto;
}

/* ═══ 04. BUTTONS ═══════════════════════════════════════════════ */
.zd-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    transition: all var(--tran-mid);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.zd-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0);
    transition: background var(--tran-fast);
    border-radius: inherit;
}

.zd-btn:hover::after {
    background: rgba(255, 255, 255, 0.1);
}

.zd-btn:active {
    transform: scale(0.98);
}

.zd-btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(51, 70, 143, 0.3);
}

.zd-btn-primary:hover {
    background: var(--color-primary-light);
    box-shadow: 0 8px 30px rgba(51, 70, 143, 0.4);
    color: white;
    transform: translateY(-2px);
}

.zd-btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.zd-btn-outline:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.zd-btn-ghost {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.zd-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.7);
    color: white;
}

.zd-btn-large {
    padding: 18px 36px;
    font-size: 1rem;
}

/* ═══ 05. HEADER / NAVIGATION ═══════════════════════════════════ */
.zd-header {
    position: fixed;
    inset-block-start: 0;
    inset-inline: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--tran-mid);
}

.zd-header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow-sm);
}

.zd-nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    padding-block: 16px;
}

.zd-logo-link {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.zd-logo {
    height: 36px;
    width: auto;
}

.zd-nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    flex: 1;
    justify-content: center;
}

.zd-nav-link {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--tran-fast);
}

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

.zd-nav-cta {
    flex-shrink: 0;
    padding: 10px 22px;
}

.zd-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    margin-left: auto;
}

.zd-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all var(--tran-fast);
}

/* ═══ 06. HERO SECTION ══════════════════════════════════════════ */
.zd-hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    /* header height */
    overflow: hidden;
}

.zd-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 30%, rgba(74, 144, 217, 0.15) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 20% 80%, rgba(51, 70, 143, 0.1) 0%, transparent 70%),
        linear-gradient(160deg, var(--color-dark-2) 0%, var(--color-dark) 50%, #1e2547 100%),
        url('../images/hero-bg.jpg') center/cover no-repeat;
    z-index: 0;
}

/* Animated particle grid overlay */
.zd-hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.05) 1px, transparent 0);
    background-size: 48px 48px;
    animation: gridDrift 20s linear infinite;
}

@keyframes gridDrift {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(48px, 48px);
    }
}

.zd-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right,
            rgba(26, 31, 61, 0.95) 0%,
            rgba(26, 31, 61, 0.7) 50%,
            transparent 100%);
    z-index: 1;
}

.zd-hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding-block: var(--space-24);
}

.zd-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(74, 144, 217, 0.15);
    border: 1px solid rgba(74, 144, 217, 0.3);
    color: var(--color-accent-light);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.zd-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.6;
        transform: scale(0.8);
    }
}

.zd-hero-title {
    color: white;
    margin-bottom: var(--space-6);
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    line-height: 1.15;
}

.zd-hero-title em {
    font-style: italic;
    color: var(--color-accent-light);
}

.zd-hero-sub {
    color: var(--color-text-light);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--space-10);
    max-width: 560px;
}

.zd-hero-sub strong {
    color: white;
    font-weight: 600;
}

.zd-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.zd-hero-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.zd-hero-pills li {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.75);
    font-family: var(--font-ui);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 6px 16px;
    border-radius: var(--radius-full);
}

.zd-hero-scroll-hint {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.35);
    animation: bounce 2s ease-in-out infinite;
    z-index: 2;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(8px);
    }
}

/* ═══ 07. TRUST STRIP ══════════════════════════════════════════ */
.zd-trust {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding-block: var(--space-8);
}

.zd-trust-label {
    text-align: center;
    font-family: var(--font-ui);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
    opacity: 0.7;
}

.zd-trust-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-8);
}

.zd-trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.zd-trust-item img {
    opacity: 0.6;
    filter: grayscale(1);
    transition: all var(--tran-mid);
}

.zd-trust-item img:hover {
    opacity: 1;
    filter: grayscale(0);
}

.zd-trust-text {
    text-align: center;
}

.zd-trust-text strong {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-dark);
}

.zd-trust-text span {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.zd-trust-separator {
    width: 1px;
    height: 36px;
    background: var(--color-border);
}

/* ═══ 08. PROBLEM SECTION ══════════════════════════════════════ */
.zd-problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.zd-problem-card {
    background: var(--color-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all var(--tran-mid);
}

.zd-problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-mid);
}

.zd-problem-icon {
    font-size: 2rem;
    margin-bottom: var(--space-4);
}

.zd-problem-card h3 {
    font-size: 1.15rem;
    margin-bottom: var(--space-3);
    color: var(--color-dark);
}

.zd-problem-solution-bridge {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding-block: var(--space-4);
}

.zd-bridge-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-mid), transparent);
}

.zd-problem-solution-bridge p {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-primary);
    white-space: nowrap;
    text-align: center;
}

/* ═══ 09. OFFER SECTION ════════════════════════════════════════ */
.zd-offer-showcase {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-12);
    align-items: start;
}

.zd-device-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-md);
    transition: all var(--tran-slow);
}

.zd-device-card:hover {
    transform: translateY(-8px) rotate(-1deg);
    box-shadow: var(--shadow-lg);
}

.zd-device-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.zd-device-img-placeholder {
    width: 100%;
    aspect-ratio: 1;
    max-width: 220px;
    margin: 0 auto var(--space-4);
}

.zd-device-svg {
    width: 100%;
    height: 100%;
}

.zd-device-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-2);
}

.zd-device-price-note {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.zd-offer-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.zd-offer-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    padding: var(--space-5);
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: all var(--tran-mid);
}

.zd-offer-feature:hover {
    border-color: var(--color-mid);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.zd-feature-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.zd-feature-text h4 {
    margin-bottom: var(--space-1);
}

.zd-feature-text p {
    font-size: 0.9rem;
}

/* ═══ 10. HOW IT WORKS ═════════════════════════════════════════ */
.zd-how {
    background: var(--color-white);
}

.zd-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    position: relative;
    margin-bottom: var(--space-12);
}

.zd-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-8);
    position: relative;
}

.zd-step-number {
    font-family: var(--font-ui);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    color: var(--color-soft-mid);
    margin-bottom: var(--space-4);
    transition: color var(--tran-mid);
}

.zd-step:hover .zd-step-number {
    color: var(--color-mid);
}

.zd-step-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-5);
}

.zd-step-content h3 {
    font-size: 1.15rem;
    margin-bottom: var(--space-3);
}

.zd-step-connector {
    position: absolute;
    top: 72px;
    right: -20px;
    width: 41px;
    height: 2px;
    background: linear-gradient(to right, var(--color-mid), transparent);
    z-index: 1;
}

.zd-step:last-child .zd-step-connector {
    display: none;
}

.zd-commitment-note {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    background: var(--color-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-5) var(--space-8);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    max-width: 680px;
    margin-inline: auto;
}

.zd-commitment-note svg {
    flex-shrink: 0;
    color: var(--color-primary);
}

.zd-commitment-note strong {
    color: var(--color-dark);
}

/* ═══ 11. PRICING ══════════════════════════════════════════════ */
.zd-pricing {
    background: var(--color-dark);
}

.zd-pricing .zd-eyebrow {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

.zd-pricing h2 {
    color: white;
}

.zd-pricing .zd-section-sub {
    color: rgba(255, 255, 255, 0.6);
}

.zd-pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    max-width: 860px;
    margin-inline: auto;
    margin-bottom: var(--space-8);
}

.zd-plan {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    transition: all var(--tran-mid);
    position: relative;
}

.zd-plan:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.zd-plan-featured {
    background: var(--color-primary);
    border-color: var(--color-accent);
    box-shadow: 0 20px 60px rgba(51, 70, 143, 0.4);
}

.zd-plan-featured:hover {
    background: var(--color-primary-light);
}

.zd-plan-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: white;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 5px 18px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.zd-plan-name {
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.zd-plan-featured .zd-plan-name {
    color: rgba(255, 255, 255, 0.85);
}

.zd-plan-price {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
    line-height: 1;
}

.zd-price-amount {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 4vw, 3rem);
    font-weight: 700;
    color: white;
}

.zd-price-period {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.zd-plan-tagline {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.5;
}

.zd-plan-features {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.zd-plan-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.zd-check {
    color: var(--color-accent-light);
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.zd-check-soon {
    color: rgba(255, 255, 255, 0.35);
    flex-shrink: 0;
}

.zd-plan-features em {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.82rem;
}

.zd-plan-fine-print {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.35);
    font-family: var(--font-ui);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-5);
}

.zd-plan .zd-btn-outline {
    border-color: rgba(255, 255, 255, 0.25);
    color: white;
}

.zd-plan .zd-btn-outline:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.zd-plan-featured .zd-btn-primary {
    background: white;
    color: var(--color-primary);
}

.zd-plan-featured .zd-btn-primary:hover {
    background: var(--color-soft);
    color: var(--color-primary-dark);
}

.zd-pricing-note {
    text-align: center;
    max-width: 560px;
    margin-inline: auto;
}

.zd-pricing-note p {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}

.zd-pricing-note strong {
    color: rgba(255, 255, 255, 0.8);
}

/* ═══ 12. TESTIMONIALS ═════════════════════════════════════════ */
.zd-testimonials-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
    align-items: start;
}

.zd-testimonial {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all var(--tran-mid);
}

.zd-testimonial:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.zd-testimonial-featured {
    box-shadow: var(--shadow-md);
    border-color: var(--color-mid);
}

.zd-testimonial blockquote p {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 0.95rem;
    color: var(--color-dark);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.zd-testimonial figcaption {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.zd-testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.zd-testimonial figcaption strong {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: var(--color-dark);
}

.zd-testimonial figcaption span {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* Stats strip */
.zd-stats-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-10);
}

.zd-stat {
    text-align: center;
}

.zd-stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.zd-stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* ═══ 13. FAQ ══════════════════════════════════════════════════ */
.zd-faq {
    background: white;
}

.zd-faq-list {
    max-width: 760px;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.zd-faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--tran-fast);
}

.zd-faq-item:has(.zd-faq-answer:not([hidden])) {
    border-color: var(--color-primary);
}

.zd-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    width: 100%;
    padding: var(--space-5) var(--space-6);
    background: none;
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-dark);
    text-align: left;
    cursor: pointer;
    transition: all var(--tran-fast);
}

.zd-faq-question:hover {
    background: var(--color-soft);
}

.zd-faq-question[aria-expanded="true"] {
    color: var(--color-primary);
    background: var(--color-soft);
}

.zd-faq-icon {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform var(--tran-fast);
    line-height: 1;
}

.zd-faq-question[aria-expanded="true"] .zd-faq-icon {
    transform: rotate(45deg);
}

.zd-faq-answer {
    padding: 0 var(--space-6) var(--space-5);
    background: var(--color-soft);
    animation: faqReveal 0.2s var(--ease-out);
}

.zd-faq-answer:not([hidden]) {
    display: block;
}

@keyframes faqReveal {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.zd-faq-answer p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-text-muted);
}

.zd-faq-answer a {
    color: var(--color-primary);
    text-decoration: underline;
}

/* ═══ 14. SIGNUP FORM ══════════════════════════════════════════ */
.zd-signup {
    position: relative;
    overflow: hidden;
    padding-block: var(--section-padding);
}

.zd-signup-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dark) 100%);
    z-index: 0;
}

.zd-signup-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.04) 1px, transparent 0);
    background-size: 36px 36px;
}

.zd-signup-bg::after {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 144, 217, 0.15) 0%, transparent 70%);
}

.zd-signup>.container {
    position: relative;
    z-index: 1;
}

.zd-signup-inner {
    max-width: 680px;
    margin-inline: auto;
}

.zd-signup-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.zd-signup-title {
    color: white;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    margin-block: var(--space-4) var(--space-5);
}

.zd-signup-sub {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
}

.zd-form {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    box-shadow: var(--shadow-lg);
}

.zd-form-step {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.zd-form-step[hidden] {
    display: none;
}

.zd-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
}

.zd-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.zd-form-group label {
    font-family: var(--font-ui);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-dark);
}

.zd-required {
    color: var(--color-primary);
}

.zd-optional {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.zd-form-group input,
.zd-form-group select {
    padding: 14px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--color-dark);
    background: white;
    transition: border-color var(--tran-fast), box-shadow var(--tran-fast);
    outline: none;
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
}

.zd-form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2333468f' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.zd-form-group input:focus,
.zd-form-group select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(51, 70, 143, 0.12);
}

.zd-form-group input.zd-error {
    border-color: #ef4444;
}

.zd-step-intro {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-family: var(--font-ui);
    margin-bottom: var(--space-2);
}

.zd-radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.zd-radio {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--color-border);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: all var(--tran-fast);
}

.zd-radio:hover {
    border-color: var(--color-primary);
    background: var(--color-soft);
}

.zd-radio:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-soft);
    color: var(--color-primary);
}

.zd-radio input[type="radio"] {
    accent-color: var(--color-primary);
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    border: 0;
    padding: 0;
    outline: none;
    box-shadow: none;
}

.zd-form-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: flex-end;
    align-items: center;
    flex-wrap: wrap;
}

.zd-form-next {
    width: 100%;
}

/* Spinner */
.zd-spinner {
    width: 20px;
    height: 20px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* Success state */
.zd-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-5);
    padding-block: var(--space-8);
}

.zd-success-icon {
    width: 80px;
    height: 80px;
}

.zd-success h3 {
    font-size: 1.6rem;
    color: var(--color-dark);
}

.zd-success p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.zd-success-note a {
    color: var(--color-primary);
}

/* ═══ 15. FINAL CTA BAR ════════════════════════════════════════ */
.zd-final-cta {
    background: var(--color-soft);
    border-top: 1px solid var(--color-border);
    padding-block: var(--space-16);
}

.zd-final-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.zd-final-cta h2 {
    color: var(--color-dark);
    margin-bottom: var(--space-2);
    font-size: clamp(1.3rem, 3vw, 2rem);
}

.zd-final-cta p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

/* ═══ 16. FOOTER ════════════════════════════════════════════════ */
.zd-footer {
    background: var(--color-dark-2);
    color: rgba(255, 255, 255, 0.6);
    padding-block: var(--space-16) var(--space-8);
}

.zd-footer-inner {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: var(--space-8);
}

.zd-footer-logo {
    filter: brightness(0) invert(1);
    opacity: 0.8;
    margin-bottom: var(--space-4);
}

.zd-footer-tagline {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: var(--space-5);
}

.zd-footer-social {
    display: flex;
    gap: var(--space-4);
}

.zd-footer-social a {
    color: rgba(255, 255, 255, 0.4);
    transition: color var(--tran-fast);
}

.zd-footer-social a:hover {
    color: white;
}

.zd-footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.zd-footer-col h4 {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
    margin-bottom: var(--space-5);
}

.zd-footer-col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.zd-footer-col a,
.zd-footer-col span {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--tran-fast);
}

.zd-footer-col a:hover {
    color: white;
}

.zd-footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.zd-disclaimer {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.25);
    line-height: 1.7;
}

.zd-copyright {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
}

/* ═══ 17. REVEAL ANIMATIONS ════════════════════════════════════ */
.zd-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.zd-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.zd-reveal-delay-1 {
    transition-delay: 0.1s;
}

.zd-reveal-delay-2 {
    transition-delay: 0.2s;
}

.zd-reveal-delay-3 {
    transition-delay: 0.3s;
}

.zd-reveal-delay-4 {
    transition-delay: 0.4s;
}

/* ═══ 18. RESPONSIVE ════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .zd-offer-showcase {
        grid-template-columns: 1fr;
    }

    .zd-device-card {
        max-width: 300px;
        margin-inline: auto;
    }

    .zd-testimonials-grid {
        grid-template-columns: 1fr 1fr;
    }

    .zd-testimonial:last-child {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 64px;
        --container-pad: 24px;
    }

    .zd-nav-links {
        display: none;
    }

    .zd-nav-links.is-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        inset-inline: 0;
        background: white;
        padding: var(--space-6);
        border-top: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
        gap: var(--space-5);
        z-index: 99;
    }

    .zd-hamburger {
        display: flex;
    }

    .zd-nav-cta {
        display: none;
    }

    .zd-steps {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .zd-step-connector {
        display: none;
    }

    .zd-pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .zd-testimonials-grid {
        grid-template-columns: 1fr;
    }

    .zd-testimonial:last-child {
        grid-column: auto;
    }

    .zd-stats-strip {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .zd-form-row {
        grid-template-columns: 1fr;
    }

    .zd-form-actions {
        justify-content: stretch;
    }

    .zd-form-actions .zd-btn {
        flex: 1;
        justify-content: center;
    }

    .zd-footer-inner {
        grid-template-columns: 1fr;
    }

    .zd-footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .zd-final-cta-inner {
        flex-direction: column;
        text-align: center;
    }

    .zd-trust-logos {
        gap: var(--space-5);
    }

    .zd-trust-separator {
        display: none;
    }

    .zd-hero-content {
        padding-block: var(--space-16);
    }
}

@media (max-width: 480px) {
    .zd-footer-links {
        grid-template-columns: 1fr;
    }

    .zd-problem-grid {
        grid-template-columns: 1fr;
    }

    .zd-hero-actions {
        flex-direction: column;
    }

    .zd-hero-actions .zd-btn {
        width: 100%;
        text-align: center;
    }
}

/* ═══ PRINT STYLES ════════════════════════════════════════════ */
@media print {

    .zd-header,
    .zd-hero-scroll-hint,
    .zd-hamburger {
        display: none;
    }

    .zd-hero {
        min-height: auto;
        padding-block: 2rem;
    }

    .zd-hero-bg,
    .zd-hero-overlay {
        display: none;
    }

    .zd-hero-title,
    .zd-hero-sub {
        color: black;
    }
}

/* ═══ REDUCED MOTION ══════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    .zd-reveal {
        opacity: 1;
        transform: none;
    }

    .zd-hero-bg::before {
        animation: none;
    }
}