/* css/style.css */

/* 1. Font Face Declaration */
@font-face {
    font-family: 'Big Shoulders Display';
    src: url('../fonts/BigShoulders-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* 2. CSS Variables */
:root {
    --font-primary: 'Big Shoulders Display', sans-serif;
    --font-secondary: Georgia, serif;

    /* Theme Colors */
    --color-text-primary-initial: #383838;
    --color-text-secondary-initial: #606060;
    --color-background-initial: #f7f7f7;
    --color-link-initial: #606060;
    --color-text-stroke-initial: #383838;

    --color-text-primary-target: #FFFFFF;
    --color-text-secondary-target: #E0E0E0;
    --color-background-target: #000000;
    --color-link-target: #E0E0E0;
    --color-text-stroke-target: #FFFFFF;
    
    /* Current Theme Colors (for transition) */
    --current-bg: var(--color-background-initial);
    --current-text-primary: var(--color-text-primary-initial);
    --current-text-secondary: var(--color-text-secondary-initial);
    --current-link: var(--color-link-initial);
    --current-text-stroke: var(--color-text-stroke-initial);

    /* Layout & Animation Variables */
    --text-stroke-width: 1px;
    --main-fade-duration: 5s; 
    --subtitle-fade-duration: 0.4s; 
    
    /* Updated Logo Size */
    --logo-width: 24px;
    --logo-height: 38px;
    --logo-margin-bottom: 10px; 
    
    --content-initial-up-shift: calc(-1 * (var(--logo-height) + var(--logo-margin-bottom) + 10px)); 
    --logo-initial-translate-y: 40px; 

    /* Content Media Dimensions */
    --media-width: 300px;
    --media-height: 375px;

    /* Subtitle min-height to prevent jumping */
    --subtitle-min-height-mobile: calc(2 * 1.4 * var(--subtitle-font-size-mobile)); 
    --subtitle-min-height-desktop: calc(2 * 1.4 * var(--subtitle-font-size-desktop)); 
}

/* Font Sizes */
:root {
    --title-font-size-mobile: 14vw; 
    --title-font-size-desktop: 7.5rem; 
    --subtitle-font-size-mobile: 2.4vw;
    --subtitle-font-size-desktop: 1rem;
    --footer-font-size-mobile: 3vw;
    --footer-font-size-desktop: 0.9rem;
}


/* 3. Basic Reset and Body Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--current-bg);
    color: var(--current-text-primary); 
    line-height: 1.6;
    padding-top: 40px;
    padding: 20px; 
    display: flex;
    justify-content: center; 
    align-items: flex-start; 
    min-height: 100vh;
    overflow-x: hidden; 
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--main-fade-duration) ease-in-out, 
                color var(--main-fade-duration) ease-in-out; 
    
}

body.theme-dark {
    --current-bg: var(--color-background-target);
    --current-text-primary: var(--color-text-primary-target);
    --current-text-secondary: var(--color-text-secondary-target);
    --current-link: var(--color-link-target);
    --current-text-stroke: var(--color-text-stroke-target);
}

.container {
    width: 100%;
    max-width: 1200px;
    padding-left: 0; 
    padding-right: 0;
}

/* 4. Header, Logo, and Main Content Wrapper */
.header {
    position: relative; 
    padding-left: 0; 
    padding-right: 0;
}

.logo-container {
    height: var(--logo-height); 
    width: var(--logo-width); 
    margin-bottom: var(--logo-margin-bottom); 
    position: relative; 
    margin-left: 3px; 
}

.fade-logo {
    display: block;
    width: var(--logo-width);
    height: var(--logo-height);
    object-fit: contain; 
    
    opacity: 0; 
    transform: translateY(var(--logo-initial-translate-y)); 
    transition: opacity var(--main-fade-duration) ease-in-out, 
                transform var(--main-fade-duration) ease-in-out;
}

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

.main-content-wrapper {
    transform: translateY(var(--content-initial-up-shift));
    transition: transform var(--main-fade-duration) ease-in-out;
    padding-left: 0; 
    margin-left: 0; 
}

.main-content-wrapper.shifted-down {
    transform: translateY(0); 
}

.brand-title, 
.footer p { 
    color: var(--current-text-primary); 
    transition: color var(--main-fade-duration) ease-in-out;
}

.brand-title {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 0.88; 
    text-transform: uppercase;
    padding-left: 0;
    margin-left: 0;
}

.title-industrious,
.title-dark {
    display: block; 
    font-size: var(--title-font-size-mobile);
}

.title-industrious {
    letter-spacing: -0.05em; 
}

.title-dark {
    color: transparent;
    -webkit-text-stroke-width: var(--text-stroke-width);
    -webkit-text-stroke-color: var(--current-text-stroke);
    text-stroke-width: var(--text-stroke-width);
    text-stroke-color: var(--current-text-stroke);
    letter-spacing: -0.02em; 
    transition: -webkit-text-stroke-color var(--main-fade-duration) ease-in-out, 
                text-stroke-color var(--main-fade-duration) ease-in-out;
}

.subtitle {
    font-family: var(--font-secondary);
    font-size: var(--subtitle-font-size-mobile);
    color: var(--current-text-secondary); 
    max-width: 280px;
    line-height: 1.4;
    margin-top: 8px; 
    opacity: 1; 
    min-height: var(--subtitle-min-height-mobile); 
    display: flex; 
    align-items: flex-start; 
    transition: color var(--main-fade-duration) ease-in-out, 
                opacity var(--subtitle-fade-duration) ease-in-out; 
}

/* 5. Content Section - Media Container */
.content {
    margin-top: 25px; 
    margin-bottom: 40px;
}

.media-wrapper { /* New wrapper for media and button */
    max-width: var(--media-width); /* Align with media container width */
    margin-left: 0; /* Ensure alignment */
}

/* FIX: Using padding-bottom hack for aspect ratio for max browser compatibility */
.media-container {
    width: 100%; 
    position: relative; 
    cursor: pointer; 
    background-color: #ddd; 
    /* The padding-hack for aspect ratio (height/width * 100) */
    /* (375 / 300) * 100 = 125% */
    height: 0;
    padding-bottom: 125%;
}

.content-media { /* Applies to image and all video elements */
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover; 
    position: absolute; 
    top: 0;
    left: 0;
}

.mute-button {
    display: block; /* Take its own line */
    margin-top: 10px; /* Space above the button */
    padding: 8px 15px;
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    color: var(--current-text-secondary); /* Use secondary text color for theme consistency */
    background-color: transparent;
    border: 1px solid var(--current-text-secondary); /* Border matches text color */
    border-radius: 4px;
    cursor: pointer;
    transition: color var(--main-fade-duration) ease-in-out, 
                border-color var(--main-fade-duration) ease-in-out,
                opacity 0.3s ease-in-out; /* Fade for visibility change */
    opacity: 0; /* Initially hidden */
    visibility: hidden; /* Initially hidden and not interactable */
}

.mute-button.visible {
    opacity: 1;
    visibility: visible;
}


.footer {
    font-family: var(--font-secondary);
    font-size: var(--footer-font-size-mobile);
    padding-left: 0; 
}
.footer p { 
    color: var(--current-text-secondary); 
}


.footer a {
    color: var(--current-link);
    text-decoration: none;
    font-weight: bold;
    transition: color var(--main-fade-duration) ease-in-out;
}

.footer a:hover, .footer a:focus {
    text-decoration: underline;
}

/* 6. Responsive Adjustments - Desktop Layout */
@media (min-width: 768px) {
    body {
        padding-top: 100px; 
        padding-left: 140px; 
        padding-right: 40px;
        padding-bottom: 40px; 
        align-items: flex-start; 
    }

    .logo-container { 
        padding-left: 3px;
    }

    
    .title-industrious,
    .title-dark {
        font-size: var(--title-font-size-desktop);
    }
    .title-industrious {
        letter-spacing: -0.04em; 
    }
    .title-dark {
        letter-spacing: -0.01em; 
    }

    .subtitle {
        font-size: var(--subtitle-font-size-desktop);
        max-width: 450px;
        margin-top: 15px; 
        min-height: var(--subtitle-min-height-desktop); 
    }
    
    .content {
        margin-top: 30px; 
        margin-bottom: 60px;
    }

    .mute-button {
        font-size: 1rem;
    }

    .footer {
        font-size: var(--footer-font-size-desktop);
    }
}