/* CSS Variables focusing on Brand Colors */
:root {
    --color-dark: #212331;
    --color-accent: #126fff;
    --color-bg: #efefef;
    --color-grey: #c2c2c5;
    --color-snow: #fcfcfc;

    --font-main: 'Inter', sans-serif;
    --transition-standard: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
}

body {
    background-color: var(--color-bg);
    color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography base */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--color-dark);
}

.text-snow p {
    color: var(--color-grey);
}

.highlight {
    color: var(--color-accent);
}

/* Background Utility Classes */
.bg-dark {
    background-color: var(--color-dark);
}

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

.bg-snow {
    background-color: var(--color-snow);
}

.text-snow {
    color: var(--color-snow);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(252, 252, 252, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(33, 35, 49, 0.05);
    transition: var(--transition-standard);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-placeholder {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-dark);
    letter-spacing: -0.5px;
}

.logo-placeholder span {
    color: var(--color-accent);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

.btn-nav,
.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-snow) !important;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-nav:hover,
.btn-primary:hover {
    background-color: #0d5ad6;
    transform: translateY(-2px);
}

/* Slides general */
.slide {
    min-height: 100vh;
    padding: 8rem 0 4rem;
    display: flex;
    align-items: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

/* Hero Section */
.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    height: 100%;
}

.hero-badge {
    background-color: rgba(18, 111, 255, 0.1);
    color: var(--color-accent);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

h1 {
    font-size: 4.5rem;
    letter-spacing: -1.5px;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--color-dark);
    max-width: 600px;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.presenter {
    border-left: 4px solid var(--color-accent);
    padding-left: 1rem;
    margin-bottom: 4rem;
}

.scroll-indicator a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0);
    }

    40% {
        transform: translateY(-10px);
    }

    60% {
        transform: translateY(-5px);
    }
}

/* Grid Layouts */
.grid-layout,
.solution-grid,
.model-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.card,
.sol-item,
.m-card {
    background-color: var(--color-snow);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition-standard);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.dark-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-snow);
}

.dark-card p {
    color: var(--color-grey);
}

.card:hover,
.sol-item:hover,
.m-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.dark-card:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.m-card p {
    color: var(--color-dark);
}

.card-icon,
.sol-icon,
.m-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.sol-icon {
    color: var(--color-accent);
}

.cluster-alert {
    background: linear-gradient(135deg, rgba(18, 111, 255, 0.1), rgba(18, 111, 255, 0.0));
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
    margin-top: 2rem;
}

/* Tech Section */
.tech-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.tech-list {
    list-style: none;
}

.tech-list li {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.tech-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* ROI Calculator */
.slide-subtitle {
    margin-bottom: 3rem;
    font-size: 1.2rem;
    opacity: 0.8;
}

.roi-container {
    background-color: var(--color-snow);
    border-radius: 20px;
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    box-shadow: 0 20px 50px rgba(33, 35, 49, 0.08);
}

.roi-controls h3 {
    margin-bottom: 2rem;
}

.control-group {
    margin-bottom: 1.5rem;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

input[type=range] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-grey);
    height: 6px;
    border-radius: 3px;
    outline: none;
    touch-action: pan-y;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    transition: transform 0.1s;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.roi-results {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    justify-content: center;
}

.result-box {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--color-grey);
}

.res-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.res-value {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.5rem;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.accent-text {
    color: var(--color-accent);
}

.res-unit {
    font-size: 1.5rem;
    font-weight: 600;
}

.res-sub {
    font-size: 0.9rem;
    color: var(--color-dark);
    opacity: 0.7;
}

/* CTA */
.cta-bullets {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0 3rem;
    font-size: 1.2rem;
}

.cta-bullets p {
    color: var(--color-grey);
}

.btn-primary {
    font-size: 1.2rem;
    padding: 1rem 2.5rem;
}

footer {
    background-color: #171822;
    color: var(--color-grey);
    text-align: center;
    padding: 2rem 0;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {

    .roi-container,
    .tech-container,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .roi-container {
        padding: 2rem;
    }

    h1 {
        font-size: 3.5rem;
    }

    .nav-links {
        display: none;
    }

    /* Simple mobile menu hide */
}

@media (max-width: 600px) {

    .grid-layout,
    .solution-grid,
    .model-cards,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .pricing-grid {
        width: 100%;
        max-width: 100%;
        margin: 0;
    }

    .price-card {
        padding: 2rem 1.5rem;
        min-width: 0;
    }

    .container {
        padding: 0 1rem;
        overflow-x: hidden;
    }

    h1 {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .roi-container {
        padding: 1.5rem;
    }

    .res-value {
        font-size: 2.5rem;
    }

    .slide {
        padding: 6rem 0 3rem;
    }

    .price {
        font-size: 2.5rem;
    }

    .cta-title {
        font-size: 2.5rem;
    }

    .cta-content {
        padding: 2rem;
    }

    .hero-content {
        align-items: center;
        text-align: center;
    }

    .presenter {
        border-left: none;
        border-top: 4px solid var(--color-accent);
        padding-left: 0;
        padding-top: 1rem;
    }
}

/* Tech Image */
.tech-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transition: var(--transition-standard);
}

.tech-img:hover {
    transform: scale(1.02);
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.price-card {
    background-color: var(--color-dark);
    color: var(--color-snow);
    border-radius: 16px;
    padding: 3rem 2rem;
    box-shadow: 0 15px 40px rgba(33, 35, 49, 0.1);
    transition: var(--transition-standard);
    position: relative;
    overflow: hidden;
}

.price-card.accent-card {
    background-color: var(--color-accent);
}

.price-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(33, 35, 49, 0.2);
}

.p-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1rem 0;
    line-height: 1;
}

.currency {
    font-size: 2rem;
    font-weight: 600;
}

.period {
    font-size: 1.2rem;
    font-weight: 400;
    opacity: 0.8;
}

.p-sub {
    color: rgba(255, 255, 255, 0.7) !important;
}

.p-features {
    list-style: none;
}

.p-features li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
    color: var(--color-snow);
}

.p-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4CAF50;
    /* A pleasant green for checkmarks */
    font-weight: bold;
}

.accent-card .p-features li::before {
    color: var(--color-snow);
    /* White check on blue card */
}

/* Contrast Fix Overrides */
.dark-card p,
.dark-card li {
    color: var(--color-snow) !important;
    opacity: 0.9;
}

/* New CTA Section */
.cta-section {
    position: relative;
    padding: 12rem 0 10rem;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.cta-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0.6;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-dark) 0%, rgba(33, 35, 49, 0.4) 50%, var(--color-dark) 100%);
}

.cta-content {
    position: relative;
    z-index: 2;
    background: rgba(33, 35, 49, 0.6);
    backdrop-filter: blur(10px);
    padding: 4rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    max-width: 900px !important;
}

.cta-title {
    font-size: 5rem;
    letter-spacing: -2px;
    margin-bottom: 1rem;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.cta-subtitle {
    font-size: 1.5rem;
    color: var(--color-snow) !important;
    opacity: 0.9;
    margin-bottom: 3rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    line-height: 1.4;
}

.cta-bullets-large {
    display: flex;
    justify-content: center;
    gap: 3rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.cta-bullets-large p {
    color: var(--color-snow) !important;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.cta-bullets-large i {
    color: var(--color-accent);
    font-size: 1.8rem;
}

@media (max-width: 900px) {
    .cta-title {
        font-size: 3.5rem;
    }

    .cta-bullets-large {
        flex-direction: column;
        gap: 1rem;
    }
}