/* ------------------------------
   KNOWADATA
   Base styles
------------------------------ */

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

html {
    scroll-behavior: smooth;
}

body {
    background: #0b0b0c;
    color: #f5f5f5;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}


/* NAVIGATION */

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(11, 11, 12, 0.9);
    z-index: 100;
}

nav {
    max-width: 1100px;
    margin: auto;
    padding: 24px 32px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: #fff;
}


/* HERO */

.hero {
    min-height: 100vh;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    padding: 120px 32px;
    text-align: center;
}

.brand-animation {
    display: flex;
    align-items: center;
    justify-content: center;

    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 800;
    letter-spacing: -0.06em;
    line-height: 1;

    margin-bottom: 40px;
}

#brand-a {
    margin: 0 0.08em;
}

.brand-animation {
    opacity: 0;
    transform: translateY(8px);

    transition:
        opacity 0.18s ease,
        transform 0.18s ease;
}

.brand-animation.show {
    opacity: 1;
    transform: translateY(0);
}

.hero h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.hero-text {
    max-width: 650px;
    color: #aaa;
    font-size: 1.1rem;
}

.button {
    display: inline-block;

    margin-top: 32px;
    padding: 12px 22px;

    border: 1px solid #555;
    border-radius: 6px;

    color: #fff;
    text-decoration: none;

    transition:
        background 0.2s ease,
        border-color 0.2s ease;
}

.button:hover {
    background: #1c1c1e;
    border-color: #888;
}


/* CONTENT SECTIONS */

.section {
    max-width: 900px;
    margin: auto;
    padding: 120px 32px;
}

.section h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 20px;
}

.section > p:not(.eyebrow) {
    max-width: 650px;
    color: #aaa;
    font-size: 1.1rem;
}

.eyebrow {
    color: #777;
    font-size: 0.75rem;
    letter-spacing: 0.18em;
    margin-bottom: 14px;
}


/* PROJECT CARD */

.project-card {
    margin-top: 50px;
    padding: 32px;

    border: 1px solid #292929;
    border-radius: 10px;

    background: #111113;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.project-card p {
    color: #aaa;
    max-width: 600px;
}

.project-card span {
    display: inline-block;
    margin-top: 24px;

    color: #777;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}


/* FOOTER */

footer {
    max-width: 1100px;
    margin: auto;

    padding: 50px 32px;

    border-top: 1px solid #222;

    color: #666;
    font-size: 0.85rem;
}


/* MOBILE */

@media (max-width: 600px) {

    nav {
        padding: 20px;
    }

    .nav-links {
        gap: 15px;
    }

    .nav-links a {
        font-size: 0.85rem;
    }

    .hero {
        padding-left: 20px;
        padding-right: 20px;
    }

    .section {
        padding: 90px 20px;
    }
}

/* ------------------------------
   PRODUCTS
------------------------------ */

.logo a {
    color: inherit;
    text-decoration: none;
}

.page-header {
    max-width: 900px;
    margin: auto;
    padding: 180px 32px 70px;
}

.page-header h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 1;
    margin-bottom: 24px;
}

.page-header > p:not(.eyebrow) {
    color: #aaa;
    font-size: 1.2rem;
}

.products-grid {
    max-width: 900px;
    margin: auto;
    padding: 20px 32px 140px;
}

.product-card {
    padding: 40px;

    background: #111113;
    border: 1px solid #292929;
    border-radius: 12px;
}

.product-card h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.product-card > p:not(.eyebrow) {
    max-width: 600px;
    color: #aaa;
}

.product-card ul {
    margin: 28px 0 10px 20px;
    color: #aaa;
}

.product-card li {
    margin-bottom: 7px;
}


/* ------------------------------
   YOUTUBE COMMENT ANALYZER
------------------------------ */

.tool-header {
    max-width: 900px;
    margin: auto;
    padding: 180px 32px 50px;
}

.tool-header h1 {
    font-size: clamp(2.5rem, 7vw, 5rem);
    line-height: 1.05;
    margin-bottom: 24px;
}

.tool-intro {
    max-width: 650px;
    color: #aaa;
    font-size: 1.2rem;
}

.analyzer {
    max-width: 900px;
    margin: auto;
    padding: 30px 32px 140px;
}

.analyzer label {
    display: block;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: #aaa;
}

.analyzer-input {
    display: flex;
    gap: 10px;
}

.analyzer-input input {
    flex: 1;

    padding: 16px 18px;

    background: #111113;
    color: #fff;

    border: 1px solid #333;
    border-radius: 7px;

    font-size: 1rem;
}

.analyzer-input input:focus {
    outline: none;
    border-color: #777;
}

.analyzer-input button {
    padding: 16px 24px;

    background: #f5f5f5;
    color: #111;

    border: 0;
    border-radius: 7px;

    font-size: 0.95rem;
    font-weight: 600;

    cursor: pointer;
}

.analyzer-input button:hover {
    background: #ddd;
}

.beta-note {
    margin-top: 12px;
    color: #666;
    font-size: 0.8rem;
}


/* RESULTS */

.results {
    margin-top: 80px;
}

.hidden {
    display: none;
}

.results h2 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;

    margin-bottom: 50px;
}

.result-card {
    padding: 28px;

    background: #111113;
    border: 1px solid #292929;
    border-radius: 10px;
}

.result-card span {
    display: block;

    color: #666;
    font-size: 0.7rem;
    letter-spacing: 0.12em;

    margin-bottom: 10px;
}

.result-card strong {
    font-size: 2rem;
}

.analysis-section {
    padding: 35px 0;
    border-top: 1px solid #222;
}

.analysis-section h3 {
    margin-bottom: 15px;
}

.analysis-section p {
    color: #888;
}


/* MOBILE */

@media (max-width: 600px) {

    .analyzer-input {
        flex-direction: column;
    }

    .result-grid {
        grid-template-columns: 1fr;
    }
}