/* ============================= */
/* CSS VARIABLES */
/* ============================= */
:root {
    /* Presentation Colors */
    --bg-gradient-start: #f8f9fa;
    --bg-gradient-end: #e9ecef;
    --card-bg: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #6c757d;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --heading-size: 2.75rem;
    --heading-weight: 800;
    --subtitle-size: 1.125rem;
    --subtitle-weight: 400;

    /* Layout */
    --container-max-width: 1100px;
    --hero-padding: 80px 40px 60px;
    --gallery-padding: 40px;
    --card-padding: 32px;
    --card-radius: 12px;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1);

    /* Section Spacing */
    --section-padding: 80px 40px;
    --section-heading-size: 2rem;
    --section-heading-weight: 700;

    /* Button Colors */
    --cta-primary: #6366f1;
    --cta-primary-dark: #4f46e5;
    --cta-accent: #f59e0b;
    --cta-accent-dark: #d97706;
    --cta-urgent: #ff6b6b;
    --cta-urgent-dark: #ee5a5a;
    --cta-trust: #00cec9;
    --cta-trust-dark: #00b5b4;
    --cta-dark: #2d3436;
    --cta-light: #ffffff;
    --cta-shadow: rgba(0, 0, 0, 0.15);

    /* Button Sizing */
    --cta-btn-padding: 14px 24px;
    --cta-btn-font-weight: 600;
    --cta-btn-font-size: 14px;
    --cta-btn-border-radius: 6px;
    --cta-btn-transition: 0.3s ease;
}

/* ============================= */
/* BASE STYLES */
/* ============================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* ============================= */
/* HERO SECTION */
/* ============================= */
.hero {
    text-align: center;
    padding: var(--hero-padding);
}

.hero h1 {
    font-size: var(--heading-size);
    font-weight: var(--heading-weight);
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: var(--subtitle-size);
    font-weight: var(--subtitle-weight);
    color: var(--text-secondary);
    margin-bottom: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================= */
/* BUTTON GALLERY */
/* ============================= */
.button-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    padding: var(--gallery-padding);
}

/* Button Card Container */
.button-card {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: var(--card-padding);
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
}

/* ============================= */
/* BASE BUTTON CLASS */
/* Use cta-btn + one style class */
/* Example: class="cta-btn btn-action-lift" */
/* ============================= */

.cta-btn {
    display: inline-block;
    padding: var(--cta-btn-padding);
    border: none;
    cursor: pointer;
    font-weight: var(--cta-btn-font-weight);
    font-size: var(--cta-btn-font-size);
    line-height: 1.4;
    border-radius: var(--cta-btn-border-radius);
    transition: all var(--cta-btn-transition);
    position: relative;
    overflow: hidden;
    font-family: var(--font-family);
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
}

/* Preview page override */
.button-card .cta-btn {
    width: 100%;
}

.button-card .cta-btn-large {
    width: 100%;
}

/* Optional large button size */
.cta-btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

/* ============================= */
/* LARGE BUTTON SECTION */
/* ============================= */

.large-button-section {
    padding: 20px 40px 60px;
    text-align: center;
}

.large-button-section h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.large-button-section p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ============================= */
/* URGENT CTAs - High-energy, glow effects */
/* ============================= */

/* Urgent Glow - Bold glow for high urgency */
.btn-urgent-glow {
    background: var(--cta-urgent);
    color: white;
    box-shadow: 0 0 15px rgba(255, 107, 107, 0.4), 0 4px 12px var(--cta-shadow);
}

/* Urgent Pulse - Animated pulse */
.btn-urgent-pulse {
    background: var(--cta-urgent);
    color: white;
    box-shadow: 0 0 15px rgba(255, 107, 107, 0.4), 0 4px 12px var(--cta-shadow);
    animation: urgentPulse 2s infinite;
}
@keyframes urgentPulse {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 107, 107, 0.4), 0 4px 12px var(--cta-shadow); }
    50% { box-shadow: 0 0 25px rgba(255, 107, 107, 0.7), 0 4px 12px var(--cta-shadow); }
}

/* ============================= */
/* TRUST-BASED CTAs - Clean */
/* ============================= */

/* Trust Clean - Minimal, trustworthy*/
.btn-trust-clean {
    background: var(--cta-trust);
    color: white;
    box-shadow: 0 4px 12px var(--cta-shadow);
}

/* Trust Border - Gradient border with white background */
.btn-trust-border {
    background: white;
    color: var(--cta-primary);
    border: 2px solid transparent;
    background-image: linear-gradient(white, white) padding-box,
                        linear-gradient(135deg, var(--cta-primary), var(--cta-accent)) border-box;
    box-shadow: 0 4px 12px var(--cta-shadow);
}

/* ============================= */
/* ACTION CTAs - Strong, direct */
/* ============================= */

/* Action Lift - Lifts up on hover, strong shadow */
.btn-action-lift {
    background: var(--cta-primary);
    color: white;
    box-shadow: 0 4px 12px var(--cta-shadow);
}

/* Action Slide - Background slides in on hover */
.btn-action-slide {
    background: var(--cta-primary);
    color: white;
    box-shadow: 0 4px 12px var(--cta-shadow);
}
.btn-action-slide::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--cta-accent);
    transform: translateX(-100%);
    transition: transform var(--cta-btn-transition);
    z-index: 0;
}
.btn-action-slide span {
    position: relative;
    z-index: 1;
}

/* Action Glass - Glass morphism effect */
.btn-action-glass {
    background: rgba(255, 255, 255, 0.85);
    color: var(--cta-dark);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Action Shine - Shine sweep effect on hover */
.btn-action-shine {
    background: var(--cta-primary);
    color: white;
    box-shadow: 0 4px 12px var(--cta-shadow);
}
.btn-action-shine::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: skewX(-25deg);
    transition: left 0.5s;
}

/* Action Dark - Dark button with lift effect */
.btn-action-dark {
    background: linear-gradient(135deg, var(--cta-dark), #111827);
    color: var(--cta-light);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 4px 12px var(--cta-shadow);
}

/* Action Outline - Outline button with fill on hover */
.btn-action-outline {
    background: transparent;
    color: var(--cta-primary);
    border: 2px solid var(--cta-primary);
    box-shadow: 0 4px 12px var(--cta-shadow);
}

/* ============================= */
/* BENEFITS SECTION */
/* ============================= */
.benefits {
    padding: var(--section-padding);
    text-align: center;
}

.benefits h2 {
    font-size: var(--section-heading-size);
    font-weight: var(--section-heading-weight);
    color: var(--text-primary);
    margin-bottom: 48px;
    letter-spacing: -0.3px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.benefit-card {
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.benefit-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.benefit-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================= */
/* WHAT'S INCLUDED SECTION */
/* ============================= */
.included {
    padding: var(--section-padding);
    text-align: center;
    background: rgba(255, 255, 255, 0.5);
}

.included h2 {
    font-size: var(--section-heading-size);
    font-weight: var(--section-heading-weight);
    color: var(--text-primary);
    margin-bottom: 32px;
    letter-spacing: -0.3px;
}

.included-list {
    list-style: none;
    max-width: 500px;
    margin: 0 auto;
}

.included-list li {
    font-size: 1rem;
    color: var(--text-primary);
    padding: 16px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: color 0.3s ease;
}

.included-list li:last-child {
    border-bottom: none;
}

/* ============================= */
/* FINAL CTA SECTION */
/* ============================= */
.final-cta {
    padding: var(--section-padding);
    text-align: center;
}

.final-cta h2 {
    font-size: var(--section-heading-size);
    font-weight: var(--section-heading-weight);
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

.final-cta-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================= */
/* FEATURED PRODUCT */
/* ============================= */
.featured-product {
    padding: var(--section-padding);
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--card-radius);
    margin: 40px 0;
}

.featured-product h2 {
    font-size: var(--section-heading-size);
    font-weight: var(--section-heading-weight);
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.3px;
    text-align: center;
}

.product-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.included-features {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 32px;
    margin: 32px 0;
}

/* ============================= */
/* COMING SOON */
/* ============================= */
.coming-soon {
    padding: var(--section-padding);
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--card-radius);
}

.coming-soon h2 {
    font-size: var(--section-heading-size);
    font-weight: var(--section-heading-weight);
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

.coming-soon p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.coming-soon a {
    margin-top: 16px;
}

/* ============================= */
/* FOOTER */
/* ============================= */
.footer {
    text-align: center;
    padding: 50px 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer .brand {
    color: var(--text-primary);
    font-weight: 600;
}

/* ============================= */
/* PURCHASE CTA STYLES */
/* ============================= */

.preview-purchase-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.preview-purchase-button {
    display: inline-block;
    padding: 16px 32px;
    background: var(--cta-primary);
    color: white;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.preview-purchase-button:hover {
    background: var(--cta-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
}

.preview-back-button {
    display: inline-block;
    padding: 16px 32px;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid #e2e8f0;
    text-align: center;
}

.preview-back-button:hover {
    background: #f1f5f9;
    color: var(--text-primary);
    border-color: #cbd5e1;
}

.preview-purchase-section {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(99, 102, 241, 0.1) 100%);
    border: 2px solid rgba(99, 102, 241, 0.2);
    border-radius: 16px;
    padding: 48px;
    text-align: center;
    margin-bottom: 40px;
}

.preview-purchase-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.preview-purchase-section p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

/* ============================= */
/* DESKTOP HOVER ONLY */
/* ============================= */
@media (hover: hover) and (pointer: fine) {
    .included-list li:hover {
        color: var(--cta-primary);
    }

    .button-card:hover {
        box-shadow: var(--card-shadow-hover);
        transform: translateY(-2px);
    }

    .benefit-card:hover {
        box-shadow: var(--card-shadow-hover);
        transform: translateY(-4px);
    }

    .btn-urgent-glow:hover {
        background: var(--cta-urgent-dark);
        box-shadow: 0 0 25px rgba(255, 107, 107, 0.6), 0 6px 16px var(--cta-shadow);
    }

    .btn-urgent-pulse:hover {
        background: var(--cta-urgent-dark);
        animation: none;
    }

    .btn-trust-clean:hover {
        background: var(--cta-trust-dark);
        box-shadow: 0 6px 16px var(--cta-shadow);
    }

    .btn-trust-border:hover {
        background-image: linear-gradient(var(--bg-gradient-start), var(--bg-gradient-start)) padding-box,
                        linear-gradient(135deg, var(--cta-primary-dark), var(--cta-accent-dark)) border-box;
        color: var(--cta-primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 6px 16px var(--cta-shadow);
    }

    .btn-action-lift:hover {
        background: var(--cta-primary-dark);
        transform: translateY(-3px);
        box-shadow: 0 8px 20px var(--cta-shadow);
    }

    .btn-action-slide:hover::before {
        transform: translateX(0);
    }

    .btn-action-dark:hover {
        background: linear-gradient(135deg, #111827, var(--cta-dark));
        transform: translateY(-3px);
        box-shadow: 0 8px 20px var(--cta-shadow);
    }

    .btn-action-outline:hover {
        background: var(--cta-primary);
        color: var(--cta-light);
        transform: translateY(-2px);
        box-shadow: 0 6px 16px var(--cta-shadow);
    }

    .btn-action-glass:hover {
        background: rgba(255, 255, 255, 0.95);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    }

    .btn-action-shine:hover::before {
        left: 150%;
    }

    .btn-action-shine:hover {
        background: var(--cta-primary-dark);
    }
}

/* ============================= */
/* TOUCH FEEDBACK */
/* ============================= */
.cta-btn:active {
    transform: scale(0.97);
    opacity: 0.9;
}

/* ============================= */
/* TOUCH FIX FOR SLIDE BUTTON */
/* ============================= */
@media (hover: none), (pointer: coarse) {
    .btn-action-slide::before {
        transform: translateX(-100%);
    }

    .btn-action-slide:hover::before {
        transform: translateX(-100%);
    }

    .btn-action-slide:active::before {
        transform: translateX(0);
    }

    .included-list li:hover {
        color: var(--text-primary);
    }
}

/* ============================= */
/* TABLET RESPONSIVE */
/* ============================= */
@media (max-width: 900px) {
    .button-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
        padding: 32px 20px;
    }

    .button-card {
        padding: 24px;
    }

    .button-card .cta-btn {
        white-space: normal;
        width: 100%;
    }

    .preview-purchase-cta {
        flex-direction: column;
        gap: 12px;
    }

    .preview-purchase-button,
    .preview-back-button {
        width: 100%;
        padding: 14px 24px;
    }

    .preview-purchase-section {
        padding: 32px 24px;
    }

    .preview-purchase-section h2 {
        font-size: 1.75rem;
    }

    .preview-purchase-section p {
        font-size: 1rem;
    }
}

/* ============================= */
/* MOBILE RESPONSIVE */
/* ============================= */
@media (max-width: 600px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 56px 0 36px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
        max-width: 100%;
    }

    .button-gallery {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 20px 0;
    }

    .button-card {
        padding: 20px;
    }

    .benefits,
    .included,
    .final-cta {
        padding: 56px 0;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 100%;
    }

    .benefit-card {
        padding: 24px 20px;
    }

    .included-list {
        max-width: 100%;
    }

    .included-list li {
        padding: 14px 0;
    }

    .final-cta-subtitle {
        font-size: 1rem;
    }

    .preview-purchase-button,
    .preview-back-button {
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    .preview-purchase-section {
        padding: 24px 20px;
    }

    .preview-purchase-section h2 {
        font-size: 1.5rem;
    }

    .preview-purchase-section p {
        font-size: 0.95rem;
    }

    .cta-btn-large {
        padding: 18px 28px;
        font-size: 1.05rem;
        min-height: 64px;
    }

    .large-button-section {
        padding: 32px 0 56px;
    }

    .large-button-section .button-card {
        min-height: 110px;
        padding: 24px 20px;
    }

    .large-button-section .button-card .cta-btn-large {
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}