/* --- Import Modern Font --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;700&display=swap');

/* --- Global & Theme Setup (White Body) --- */
:root {
    --bg-color: #ffffff;
    --bg-secondary: #f9f9f9;
    --text-color: #111111; /* This is the desired dark black color */
    --text-muted: #555555;
    --border-color: #eeeeee;
    --header-footer-bg: #000000;
    --header-footer-text: #ffffff;
    --cta-bg: #000000;
    --cta-text: #ffffff;
    --cta-hover: #333333;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    /* Set ALL default body text to the dark black color */
    color: var(--text-color); 
    line-height: 1.6;
    padding-top: 130px; 
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color); /* Already black */
}

h1 {
    font-size: 3.2rem;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

h2.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: var(--cta-bg);
    margin: 1rem auto 0;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    /* Explicitly set p to black/--text-color for robust inheritance over browser defaults */
    color: var(--text-color); 
}

a {
    color: var(--cta-bg);
    text-decoration: none;
    font-weight: 500;
}

section {
    padding: 100px 0;
}

/* --- REVISED Header & Navigation --- */


.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 25px 50px; 
    background-color: var(--header-footer-bg);
    border-bottom: 1px solid #333;
    position: fixed; 
    top: 0;
    left: 0;      
    width: 100%;  
    z-index: 1000;
}
/* ... Header styles (already use white or dark colors correctly) ... */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    max-height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.6rem; 
    font-weight: 700;
    color: var(--header-footer-text);
}

.main-nav ul {
    display: flex;
    list-style: none;
}

.main-nav li {
    /* margin-left removed */
}

.main-nav a {
    color: var(--header-footer-text);
    font-weight: 500;
    font-size: 1rem; 
    margin: 0 15px; 
    padding: 5px 0;
    transition: color 0.3s ease;
    text-decoration: none; 
}

.main-nav a:hover {
    color: #aaaaaa;
    text-decoration: underline; 
}

/* --- Hero Section --- */
#hero {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 80vh;
    padding: 60px 20px; 
    background-color: var(--bg-color);
}

#hero .container {
    max-width: 800px;
}

#hero h1 {
    color: #000000; /* Pure black text */
}

#hero .sub-headline {
    font-size: 1.4rem;
    color: #000000; /* Pure black text */
    font-weight: 300;
    margin-bottom: 2.5rem;
}

/* Hero CTA Button (from kyoconnectai.com) */
#hero button {
    background-color: var(--cta-bg);
    color: var(--cta-text);
    padding: 14px 28px;
    font-weight: 700;
    font-size: 1.1rem; 
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

#hero button:hover {
    background-color: var(--cta-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* --- REVISED Mission Section --- */
#mission {
    background-color: var(--bg-secondary);
}

.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin: 0 auto;
}

.mission-grid .text {
    text-align: left;
}

.mission-grid .text h2 {
    text-align: left; 
    margin-bottom: 1.5rem;
}

.mission-grid .text h2::after {
    margin: 1rem 0 0; 
}

.mission-grid p {
    font-size: 1.1rem;
    /* Removed: color: var(--text-color); -> now inherits from the p rule/body */
    line-height: 1.7;
}

.mission-grid .image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* --- Solutions Section --- */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.solution-card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

.solution-card h3 {
    color: var(--text-color);
    margin-bottom: 15px;
}

/* --- Supported Models Section (Copied from kyoconnectai.com) --- */
.section-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 3rem;
}

.section-split .text {
    text-align: left;
}

.section-split .image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

#supported-models .section-split h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

#supported-models ul {
    list-style: none;
    padding-left: 0;
}

#supported-models li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 10px;
    font-size: 1.05rem;
    /* Removed: color: var(--text-muted); -> now inherits black from body */
}

#supported-models li::before {
    content: '✔'; /* Checkmark */
    position: absolute;
    left: 0;
    top: 0;
    color: #007bff; /* A small accent color */
    font-weight: bold;
}

/* --- Use Cases Section --- */
.use-case-detailed .text strong {
    /* Removed: color: var(--text-color); -> now inherits black from body */
    font-size: 1.1rem;
}

/* ... (other use-case styles unchanged) ... */
#use-cases {
    background-color: var(--bg-secondary);
}

/* Part 1: Chip/Tag layout */
.use-case-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 4rem; 
}

.use-case-item-chip {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 12px 25px;
    border-radius: 30px; 
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.use-case-item-chip:hover {
    background-color: var(--cta-bg);
    color: var(--cta-text);
    border-color: var(--cta-bg);
    transform: translateY(-2px);
}

/* Part 2: Detailed Iframe Cases (from kyoconnectai.com) */
.use-case-detailed {
    margin-top: 3rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.use-case-detailed + .use-case-detailed {
    margin-top: 2rem; 
}

.use-case-detailed .text {
    padding: 30px;
    background: var(--bg-color);
}

.use-case-detailed .text p {
    font-size: 0.95rem;
}

.use-case-detailed .text strong {
    color: var(--text-color);
    font-size: 1.1rem;
}

.use-case-detailed .image {
    width: 100%;
    border-top: 1px solid var(--border-color);
}

.use-case-detailed iframe {
    width: 100%;
    height: 450px;
    border: none;
    display: block;
}


/* --- Contact Section (Moved & Restyled) --- */
#contact {
    background-color: var(--bg-color);
}

#contact .container {
    max-width: 700px;
}

#contact p {
    text-align: center;
    font-size: 1.1rem;
    /* Removed: color: var(--text-muted); -> now inherits black from body */
}

/* Form styling from kyoconnectai.com */
.form-container {
    margin-top: 3rem;
}

.input-wrapper {
    margin-bottom: 20px;
}

.input-wrapper label {
    display: block;
    margin-bottom: 8px;
    /* Form labels often use muted color, but enforcing black per request */
    color: var(--text-color); 
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
    padding: 12px;
    border-radius: 5px;
    border: 1px solid #ccc;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
}

.input-wrapper input:focus,
.input-wrapper textarea:focus {
    outline: none;
    border-color: var(--cta-bg);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
}

.sub-button {
    width: 100%;
    background-color: var(--cta-bg);
    color: var(--cta-text);
    padding: 14px 28px;
    font-weight: 700;
    font-size: 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.sub-button:hover {
    background-color: var(--cta-hover);
}

footer {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 25px 20px;
}

/* FIX: Override the general 'p' style for the footer to make it white (correct for dark footer) */
footer p {
    color: var(--header-footer-text); 
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    /* ... mobile styles unchanged ... */
    h1 {
        font-size: 2.5rem;
    }
    h2 {
        font-size: 2rem;
    }
    section {
        padding: 60px 20px;
    }

    .header {
        flex-direction: column;
        padding: 15px 20px;
    }

    body {
        padding-top: 150px; 
    }

    .logo-container {
        margin-bottom: 15px;
    }
    .main-nav ul {
        padding: 0;
        justify-content: center;
        flex-wrap: wrap;
    }
    .main-nav li {
        margin: 5px 8px;
    }

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

    .section-split {
        grid-template-columns: 1fr; 
    }
    .section-split:nth-child(even) .text {
        grid-row: 2;
    }
    .section-split:nth-child(even) .image {
        grid-row: 1;
    }
}