/* ========================================
   CSS VARIABLES - LIGHT & DARK THEMES
   ======================================== */
   :root {
    /* Base Sizes */
    --card-width: 100px;
    --gap: 10px;
    --small-gap: 5px;
    --grid-max-width: 900px; /* Max width for the product grid */
    --border-radius: 5px;
    --product-col-gap: 14px;

    /* Font Family */
    --font-family: 'Liberation Sans', Arial, sans-serif;

    /* --- Light Theme Colors (Blue/Gray Palette) --- */
    --primary-light: #5a7cb0;         /* Medium Blue */
    --primary-darker-light: #48638c;  /* Darker Medium Blue */
    --primary-rgb-light: 90, 124, 176; /* RGB values for primary color */
    --secondary-light: #6c757d;       /* Standard Gray */
    --secondary-darker-light: #5a6268;/* Darker Gray */
    --dark-light: #212529;            /* Dark Text */
    --light-light: #f8f9fa;           /* Very Light Gray/White */
    --bg-light: #f0f4f8;              /* Light Blueish Gray Background */
    --border-color-light: #dee2e6;    /* Light Gray Border */
    --accent-light: #0056b3;          /* Standard Link Blue */
    --shadow-light: 0 2px 5px rgba(0, 0, 0, 0.1);
    --highlight-light: rgba(90, 124, 176, 0.3); /* Blueish highlight */
    --header-grad-1-light: #6c8cbd;   /* Header Gradient Blue 1 */
    --header-grad-2-light: #5a7cb0;   /* Header Gradient Blue 2 */
    --text-color-light: var(--dark-light);
    --body-bg-light: var(--bg-light);
    --card-bg-light: #ffffff;         /* White Card Background */
    --btn-bg-light: var(--primary-light);
    --btn-hover-bg-light: var(--primary-darker-light);
    --btn-clear-bg-light: var(--secondary-light);
    --btn-clear-hover-bg-light: var(--secondary-darker-light);
    --btn-text-light: #ffffff;
    --footer-bg-light: #ffffff;
    --footer-border-light: var(--border-color-light);
    --advertise-bg-light: #ffffff;
    --advertise-border-light: var(--border-color-light);
    --definition-bg-light: aliceblue;

    /* --- Dark Theme Colors (Blue/Gray Palette) --- */
    --primary-dark: #8aa9d6;          /* Lighter Blue */
    --primary-darker-dark: #708ebf;   /* Darker Lighter Blue */
    --primary-rgb-dark: 138, 169, 214; /* RGB values for primary color */
    --secondary-dark: #adb5bd;        /* Light Gray */
    --secondary-darker-dark: #9a9fa5; /* Darker Light Gray */
    --dark-dark: #ecf0f1;             /* Light Text */
    --light-dark: #34495e;            /* Dark Blue/Gray Element BG */
    --bg-dark: #2c3e50;               /* Dark Blue/Gray Background */
    --border-color-dark: #4a657b;     /* Darker Border */
    --accent-dark: var(--primary-dark);           /* Lighter Link Blue */
    --shadow-dark: 0 2px 5px rgba(0, 0, 0, 0.3);
    --highlight-dark: rgba(138, 169, 214, 0.4); /* Lighter blue highlight */
    --header-grad-1-dark: #8aa9d6;    /* Header Gradient Light Blue 1 */
    --header-grad-2-dark: #708ebf;    /* Header Gradient Light Blue 2 */
    --text-color-dark: var(--dark-dark);
    --body-bg-dark: var(--bg-dark);
    --card-bg-dark: var(--light-dark);
    --btn-bg-dark: var(--primary-dark);
    --btn-hover-bg-dark: var(--primary-darker-dark);
    --btn-clear-bg-dark: var(--secondary-dark);
    --btn-clear-hover-bg-dark: var(--secondary-darker-dark);
    --btn-text-dark: #212529;         /* Dark text on lighter buttons */
    --footer-bg-dark: var(--light-dark);
    --footer-border-dark: var(--border-color-dark);
    --advertise-bg-dark: var(--light-dark);
    --advertise-border-dark: var(--border-color-dark);
    --definition-bg-dark: #1e293b;
}

/* ========================================
   BASE STYLES & RESET
   ======================================== */
* {
    margin: 0;
    padding: 0;
    /* box-sizing: border-box; */
    font-family: var(--font-family);
}

html {
    overflow-y: scroll;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
}

/* ========================================
   BODY & THEME SYSTEM
   ======================================== */

body {
    --primary: var(--primary-light);
    --primary-darker: var(--primary-darker-light);
    --secondary: var(--secondary-light);
    --secondary-darker: var(--secondary-darker-light);
    --dark: var(--dark-light);
    --light: var(--light-light);
    --bg: var(--bg-light);
    --border-color: var(--border-color-light);
    --accent: var(--accent-light);
    --shadow: var(--shadow-light);
    --highlight: var(--highlight-light);
    --header-grad-1: var(--header-grad-1-light);
    --header-grad-2: var(--header-grad-2-light);
    --text-color: var(--text-color-light);
    --body-bg: var(--body-bg-light);
    --card-bg: var(--card-bg-light);
    --btn-bg: var(--btn-bg-light);
    --btn-hover-bg: var(--btn-hover-bg-light);
    --btn-clear-bg: var(--btn-clear-bg-light);
    --btn-clear-hover-bg: var(--btn-clear-hover-bg-light);
    --btn-text: var(--btn-text-light);
    --footer-bg: var(--footer-bg-light);
    --footer-border: var(--footer-border-light);
    --advertise-bg: var(--advertise-bg-light);
    --advertise-border: var(--advertise-border-light);
    --definition-bg: var(--definition-bg-light);
}

body {
    /* Lighter, more subtle gradient for light mode */
    background-image: linear-gradient(120deg, rgba(220, 236, 255, 0.8) 0%, var(--bg-light) 100%);
    background-attachment: fixed; /* Keep the background fixed when scrolling */
    background-size: cover;
    color: var(--text-color);
}

body.dark-mode {
    --primary: var(--primary-dark);
    --primary-darker: var(--primary-darker-dark);
    --secondary: var(--secondary-dark);
    --secondary-darker: var(--secondary-darker-dark);
    --dark: var(--dark-dark);
    --light: var(--light-dark);
    --bg: var(--bg-dark);
    --border-color: var(--border-color-dark);
    --accent: var(--accent-dark);
    --shadow: var(--shadow-dark);
    --highlight: var(--highlight-dark);
    --header-grad-1: var(--header-grad-1-dark);
    --header-grad-2: var(--header-grad-2-dark);
    --text-color: var(--text-color-dark);
    --body-bg: var(--body-bg-dark);
    --card-bg: var(--card-bg-dark);
    --btn-bg: var(--btn-bg-dark);
    --btn-hover-bg: var(--btn-hover-bg-dark);
    --btn-clear-bg: var(--btn-clear-bg-dark);
    --btn-clear-hover-bg: var(--btn-clear-hover-bg-dark);
    --btn-text: var(--btn-text-dark);
    --footer-bg: var(--footer-bg-dark);
    --footer-border: var(--footer-border-dark);
    --advertise-bg: var(--advertise-bg-dark);
    --advertise-border: var(--advertise-border-dark);
    --definition-bg: var(--definition-bg-dark);
    
    /* Dark mode gets a different gradient */
    background-image: linear-gradient(120deg, rgba(30, 40, 70, 0.9) 0%, var(--bg-dark) 100%);
}

/* ========================================
   LAYOUT CONTAINERS
   ======================================== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: calc(2 * var(--gap));
}


/* ========================================
   LINKS
   ======================================== */
   a {
    color: var(--accent);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    text-decoration: underline;
    color: var(--primary); /* Use primary color on hover */
}


/* ========================================
   BUTTON COMPONENTS
   ======================================== */
.btn {
    padding: 10px 20px;
    background-color: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    font-size: 0.9rem;
    font-weight: 500;
}
.btn:hover {
    background-color: var(--btn-hover-bg);
    transform: translateY(-1px);
}
.btn:active {
    transform: translateY(0px);
}
.btn.clear {
    background-color: var(--btn-clear-bg);
}
.btn.clear:hover {
    background-color: var(--btn-clear-hover-bg);
}


/* ========================================
   LOADING STATES
   ======================================== */
.cascade-loading-container {
    text-align: center;
    padding-top: 1rem;    
    padding-bottom: 1rem; 
}

.cascade-spinner-image {
    display: block;     
    margin-left: auto;  
    margin-right: auto; 
    width: 30px;
    height: 30px;
}


/* ========================================
   CONFIGURATION PANEL
   ======================================== */
.config-panel-toggle {
    position: fixed;
    bottom: calc(2 * var(--gap));
    right: calc(2 * var(--gap));
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    border: none;
    transition: transform 0.3s ease, background-color 0.3s ease;
    -webkit-tap-highlight-color: transparent; /* Remove tap highlight on mobile */
}

.config-panel-toggle img {
    filter: brightness(0) invert(1); /* Make the gear icon white */
}

.config-panel-toggle:hover {
    background-color: var(--primary-darker);
    transform: rotate(30deg);
}

.config-panel-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.5);
}

.config-panel-toggle.active {
    transform: rotate(90deg);
}

.config-panel {
    position: fixed;
    bottom: 70px;
    right: 20px;
    width: 250px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
    padding: 15px;
    z-index: 999;
    transform: translateY(20px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
}

.config-panel.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.config-panel h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.config-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.config-option label {
    font-size: 14px;
    color: var(--text-color);
}

/* ========================================
   TOGGLE SWITCH COMPONENT
   ======================================== */
.config-option {
    .toggle-switch {
        position: relative;
        display: inline-block;
        width: 40px;
        height: 20px;
    }
    
    .toggle-switch input {
        opacity: 0;
        width: 0;
        height: 0;
    }
    
    .toggle-slider {
        position: absolute;
        cursor: pointer;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--secondary);
        transition: .4s;
        border-radius: 20px;
    }
    
    .toggle-slider:before {
        position: absolute;
        content: "";
        height: 16px;
        width: 16px;
        left: 2px;
        bottom: 2px;
        background-color: white;
        transition: .4s;
        border-radius: 50%;
    }
    
    input:checked + .toggle-slider {
        background-color: var(--accent);
    }
    
    input:focus + .toggle-slider {
        box-shadow: 0 0 1px var(--accent);
    }
    
    input:checked + .toggle-slider:before {
        transform: translateX(20px);
    }
    
    /* Disable GIF animations when setting is off */
    .no-gif-animation img[src$=".gif"] {
        animation: none !important;
    }
}


/* ========================================
   HEADER SECTION
   ======================================== */
header {
    margin-bottom: 30px;
    text-align: center;
    overflow: hidden;
}

.engraved {
    background-color: #8598C8;
    -webkit-background-clip: text;
    -moz-background-clip: text;
    background-clip: text;
    color: rgba(133, 152, 200, 0.4);
    text-shadow: rgba(255, 255, 255, 1) 2px 3px 1px;
}

.dark-mode .engraved {
    background-color: #ffffff;
    text-shadow: 
        2px 2px 3px rgba(0, 0, 0, 0.5),
        2px 2px 7px rgba(255, 255, 255, 0.3);
}

.site-title {
    font-size: 100px;
    font-family: Futura, "Times New Roman";
    font-weight: 100;
    margin-bottom: 15px;
    display: inline-block;
}

@keyframes gradient-animation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.definition {
    font-style: italic;
    color: var(--secondary);
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 15px;
    font-size: 0.95rem;
}

.definition strong {
    font-weight: 600;
    color: var(--primary);
}


/* ========================================
   TAB NAVIGATION
   ======================================== */
.tab-navbar {
    display: flex;
    justify-content: center; /* Center the tabs horizontally */
    gap: var(--gap);
    padding-bottom: 0.5em;
    font-family: var(--font-family);
    border-bottom: 2px solid var(--border-color);
}

.tab-navbar .tab-link {
    display: flex;
    align-items: center;
    gap: 0.5em;
    background: none;
    font-size: 1.5em;
    color: var(--secondary);
}

.tab-navbar .tab-link.selected {
    color: var(--btn-text);
    border-bottom-color: var(--btn-bg);
    background-color: var(--btn-bg);
}

.tab-navbar .tab-link:hover,
.tab-navbar .tab-link:focus {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background-color: var(--highlight);
}

.tab-navbar .tab-link {
    color: var(--secondary);
}

.tab-navbar .tab-link:hover,
.tab-navbar .tab-link:focus {
    color: var(--primary-light);
    border-bottom-color: var(--primary-light);
    background-color: var(--highlight-light);
    outline: none;
}

.tab-navbar .tab-link.selected {
    color: var(--btn-text-light);
    border-bottom-color: var(--btn-bg-light);
    background-color: var(--btn-bg-light);
}

.tab-navbar .tab-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.tab-navbar .icon {
    width: 1em;
    height: 1em;
    stroke-width: 1.8;
    flex-shrink: 0;
  }

/* ========================================
   INFO ROW COMPONENTS
   ======================================== */
.info-row {
    display: flex;
    align-items: center;
    gap: 1em;
    padding: 10px;
    font-size: 0.95rem;
    background-color: var(--definition-bg, aliceblue);
}

.info-row .info-icon {
    display: inline-block;
    width: var(--icon-size, 2.2em);
    height: var(--icon-size, 2.2em);
    vertical-align: middle;
    background: url('/images/info.svg') no-repeat center center / contain;
    background-size: contain;
    color: var(--accent, #2563eb);
    transition: filter 0.3s, color 0.3s;
}

.info-row .icon-region {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}
.info-row .info-region {
    flex: 1 1 0%;
    color: var(--secondary);
}

.info-row i.heart,
.info-row i.info-icon {
    opacity: 0.5;
}


.dark-mode .info-row i.heart,
.dark-mode .info-row i.info-icon {
    filter: brightness(1) invert(1);
}



/* ========================================
   ADVERTISE SECTION
   ======================================== */
.advertise-section {
    background-color: var(--advertise-bg);
    border: 1px dashed var(--advertise-border); /* Dashed border */
    border-radius: 5px;
    padding: 15px 20px;
    margin: 0 auto 30px auto; /* Center horizontally, add bottom margin */
    max-width: var(--grid-max-width); /* Match grid width */
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}
.advertise-section p {
    margin: 0;
}




/* ========================================
   FLAG COUNTER SECTION
   ======================================== */
.flag-counter {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    text-align: center;
    margin-bottom: 20px;
}

.flag-counter a {
    display: inline-block;
    max-width: 100%;
}

.flag-counter img {
    max-width: 100%;
    height: auto;
    display: block;
}


/* ========================================
   FOOTER SECTION
   ======================================== */
footer {
    margin-top: calc(4 * var(--gap));
    padding: calc(2 * var(--gap));
    background-color: var(--footer-bg);
    border-top: 1px solid var(--footer-border);
    transition: background-color 0.3s ease, border-top-color 0.3s ease;
}
.disclaimer {
    font-size: 0.8rem;
    color: var(--secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.disclaimer strong {
     color: var(--text-color);
     font-weight: 600;
}


/* ========================================
   RESPONSIVE DESIGN - MOBILE
   ======================================== */
@media (max-width: 540px) {
    .tab-navbar .tab-link{
        display: block;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--small-gap);
    }

     .theme-toggle {
        top: var(--gap);
        right: var(--gap);
        padding: var(--small-gap) var(--gap);
        font-size: 1.1rem;
    }

    .site-title {
        font-size: 80px;
    }
    .definition {
        font-size: 0.85rem;
    }

    .btn {
        padding: var(--small-gap) var(--gap);
        font-size: 0.85rem;
    }

    .advertise-section {
        padding: var(--gap) var(--gap);
        font-size: 0.85rem;
        margin-bottom: calc(2 * var(--gap));
        max-width: none;
        margin-left: 0;
        margin-right: 0;
    }

    .disclaimer {
        font-size: 0.75rem;
    }

    .info-row {
        font-size: 0.85rem;
    }
    .info-icon {
        width: 1em;
        height: 1em;
    }
}

@media (max-width: 415px) {
    .container {
        padding: 0;
    }
}

@media (max-width: 387px) {
    .container {
        padding: var(--small-gap);
    }
}