:root {
    --color-brightest: #E7A7E7;
    --color-before-brightest: #CE95CE;
    --color-mauve: #E768E7;
    --color-amethyst: #993399;
    --color-royal-purple: #660099;
    --color-deep-purple: #330066;
    --color-charcoal: #333333;
    --color-black: #000000;
    --color-gray: #B9B9B9;
    --color-orange: #CEB695;
    --color-light-red: #DA6A6A;
    --color-green: #059800;
    --color-light-green: #95CE9A;

    --background: var(--color-black);
    --foreground: var(--color-gray);

    --surface-primary: var(--color-charcoal);
    --surface-secondary: var(--color-deep-purple);

    --border-color: rgba(185, 185, 185, 0.2);
    --accent-primary: var(--color-mauve);
    --accent-secondary: var(--color-amethyst);
    --accent-glow: rgba(231, 104, 231, 0.3);
}

html.is-logged-in #auth-section > a {
    display: none !important;
}

* {
    -webkit-tap-highlight-color: transparent;
}

/* Loading spinner animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 4rem;
}

.loading-spinner::before {
    content: '';
    width: 40px;
    height: 40px;
    border: 3px solid rgba(153, 51, 153, 0.15);
    border-top-color: var(--color-mauve);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-spinner span {
    color: var(--color-gray);
    font-size: 1rem;
    animation: pulse-glow 2s ease-in-out infinite;
}

html,
body {
    background-color: var(--background);
    color: var(--foreground);
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

* {
    box-sizing: border-box;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s ease, text-shadow 0.2s ease;
}

a:hover {
    color: var(--color-brightest);
    text-shadow: 0 0 8px var(--accent-glow);
}

/* Base utility classes for typography, buttons, etc. */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.heading-1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--color-brightest);
    margin-bottom: 1rem;
}

.heading-2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-before-brightest);
    margin-bottom: 0.75rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-amethyst), var(--color-royal-purple));
    color: #fff;
    border: 1px solid var(--color-mauve);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(102, 0, 153, 0.4);
    display: inline-block;
    text-align: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 104, 231, 0.5);
    background: linear-gradient(135deg, var(--color-mauve), var(--color-amethyst));
    color: #fff;
}

.btn-secondary {
    background: var(--surface-primary);
    color: var(--color-brightest);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-block;
    text-align: center;
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    background: rgba(231, 104, 231, 0.1);
}

.card {
    background-color: var(--surface-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

/* Navigation specific */
nav {
    display: flex;
    gap: 1.5rem;
    font-weight: 600;
}

nav a {
    color: var(--foreground);
    position: relative;
    padding-bottom: 0.2rem;
}

nav a.active {
    color: var(--color-brightest);
    text-shadow: 0 0 8px var(--accent-glow);
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-brightest);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--accent-glow);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

nav a:hover {
    color: var(--color-brightest);
    text-shadow: none;
}

/* Grid layout utilities */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.calc-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
    align-items: flex-start;
}

/* Video specific action buttons */
.btn-action {
    background: var(--surface-primary);
    color: var(--color-brightest);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Only apply hover effects on devices with a mouse/trackpad */
@media (hover: hover) and (pointer: fine) {
    .btn-action:hover {
        border-color: var(--color-mauve);
        background: rgba(231, 104, 231, 0.1);
    }
}

.btn-action.active-action {
    background: linear-gradient(135deg, var(--color-amethyst), var(--color-royal-purple));
    color: #fff;
    border-color: var(--color-mauve);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: scale(1.05);
}

/* -------------------------
/* MOBILE RESPONSIVENESS
/* ------------------------- */
html,
body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
        width: 100%;
        box-sizing: border-box;
    }

    /* Prevent overflow on hero sections */
    p {
        max-width: 100% !important;
    }

    /* Stack header items */
    header .container {
        flex-direction: column !important;
        gap: 0.75rem;
        text-align: center;
    }

    /* Center Account Dropdown specifically */
    #account-dropdown {
        left: 50% !important;
        right: auto !important;
        transform: translateX(-50%) !important;
    }

    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
        font-size: 0.95rem;
    }

    /* Typography scaling */
    .heading-1 {
        font-size: 2.2rem !important;
    }

    .heading-2 {
        font-size: 1.6rem !important;
    }

    /* Shrink the home page hero buttons spacing and force 2x2 grid */
    .hero-buttons-grid {
        display: grid !important;
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem !important;
        width: 100%;
        box-sizing: border-box;
    }

    .hero-buttons-grid>*:last-child {
        grid-column: 1 / -1;
        justify-self: center;
        width: 50% !important;
        min-width: 200px;
    }

    .btn-primary,
    .btn-secondary {
        padding: 0.75rem 0.5rem !important;
        font-size: 0.9rem !important;
        width: 100%;
        text-align: center;
        justify-content: center;
        box-sizing: border-box;
    }

    .btn-secondary svg,
    .btn-primary svg {
        margin: 0 !important;
    }

    /* Grid single column on mobile */
    .grid {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
    }

    /* Video player modal layout perfectly fitting the screen */
    #video-modal {
        padding: 0 !important;
    }

    #video-modal>div {
        margin: 0 !important;
        width: 100% !important;
        padding: 0.75rem !important;
        box-sizing: border-box;
    }

    #modal-title {
        font-size: 1rem !important;
        text-align: center;
    }

    /* Constrain See All button width */
    #most-liked-section .btn-secondary {
        padding: 0.3rem 0.6rem !important;
        font-size: 0.75rem !important;
        min-width: 0 !important;
        width: auto !important;
    }

    /* Prevent iframe controls from being clipped */
    #player-container {
        overflow: visible !important;
        border-radius: 0 !important;
    }

    #modal-tags {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.2rem;
    }

    #modal-tags span {
        font-size: 0.7rem !important;
    }

    /* Calculator: stack price panel under form */
    .calc-layout {
        grid-template-columns: 1fr !important;
        gap: 1.5rem !important;
    }

    .calc-layout>div:last-child .card {
        position: static !important;
    }

    /* Re-arrange modal buttons so they fit without dominating */
    #video-modal .btn-action {
        padding: 0.4rem 0.5rem !important;
        font-size: 0.8rem !important;
        flex: 1;
        justify-content: center;
    }

    #video-modal>div>div[style*="justify-content: space-between"] {
        flex-direction: column !important;
        gap: 0.75rem !important;
        align-items: stretch !important;
    }

    #video-modal>div>div[style*="justify-content: space-between"]>div {
        width: 100%;
        display: flex;
        gap: 0.5rem;
    }

    /* Filter sections and buttons */
    #filter-section {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
    }

    #filter-section select {
        width: 100%;
    }

    /* Footer layout */
    footer .container {
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        text-align: center;
        gap: 1rem;
    }

    /* Calculator Tabs & Sliders */
    #calculator-panel {
        padding: 1rem !important;
    }

    .calculator-tabs {
        flex-direction: column !important;
    }

    .calculator-tabs button {
        width: 100%;
        border-radius: 8px !important;
    }

    .slider-container {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.5rem;
    }

    .slider-container input[type="range"] {
        width: 100% !important;
        margin: 0 !important;
    }

    .toggle-container {
        flex-direction: column !important;
        align-items: flex-start !important;
        justify-content: flex-start !important;
        width: 100% !important;
        gap: 0.75rem !important;
    }

    .more-info-grid {
        grid-template-columns: 1fr !important;
    }
}

/* Age Gateway Anti-Flicker */
html.age-verified #age-gateway {
    display: none !important;
}

html.age-verified #main-content {
    opacity: 1 !important;
    visibility: visible !important;
    transition: none !important;
}

/* --- Cyber-Retro Floating Popup Styles --- */
.vintage-window {
    position: absolute;
    /* Absolute locks it to the document scroll */
    top: 15vh;
    /* Spawns lower as requested */
    left: 2vw;
    max-height: 500px;
    /* Fix for extreme height persistence bug */
    width: 300px;
    /* More compact horizontally */
    background: rgba(30, 10, 50, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(179, 102, 255, 0.3);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 15px rgba(179, 102, 255, 0.1);
    z-index: 1000;
    font-family: 'Inter', 'Segoe UI', sans-serif;
    color: var(--color-brightest);
    overflow: hidden;
    animation: popupFloat 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.1s ease-out, opacity 0.3s ease;
    will-change: transform;
}

.vintage-window.is-dragging {
    transition: none !important;
    cursor: grabbing !important;
}

.vintage-window.minimized {
    max-height: 33px;
    /* Only titlebar visible */
}

.vintage-window.minimized .window-body {
    opacity: 0;
    pointer-events: none;
}

@keyframes popupFloat {
    from {
        transform: translateY(40px) scale(0.9);
        opacity: 0;
    }

    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.window-titlebar {
    background: rgba(153, 51, 153, 0.2);
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(179, 102, 255, 0.2);
    cursor: grab;
}

.window-titlebar:active {
    cursor: grabbing;
}

.titlebar-text {
    color: var(--color-amethyst);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    user-select: none;
}

.titlebar-controls {
    display: flex;
    gap: 8px;
}

.win-btn {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    color: white;
    -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
    .win-btn:hover {
        background: var(--color-amethyst);
        transform: scale(1.1);
    }
}

.win-btn:active {
    background: var(--color-amethyst);
    transform: scale(1.1);
}

.window-body {
    padding: 12px;
    /* More compact vertically and horizontally */
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: opacity 0.3s ease;
}

.window-text {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    padding: 15px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--color-before-brightest);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.window-footer {
    display: flex;
    justify-content: flex-end;
}

.win-action-btn {
    padding: 6px 16px;
    background: var(--color-amethyst);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.win-action-btn:hover {
    background: var(--color-mauve);
    transform: translateY(-1px);
    box-shadow: 0 0 10px rgba(179, 102, 255, 0.3);
}

.win-action-btn:active {
    transform: translateY(0);
}

/* GIF Alignment Fix */
.licking-gif {
    height: 0.9em;
    width: auto;
    pointer-events: none;
    z-index: 2;
    mix-blend-mode: screen;
    opacity: 0.9;
    vertical-align: middle;
    margin-left: 12px;
    /* Create a gap from the text 'v' */
    margin-bottom: 2px;
}

/* Scroll Animations */
.fade-in-scroll {
    opacity: 0;
    transform: translateY(40px) scale(0.98);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

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

.mobile-newline {
    display: inline;
}

/* Mobile responsive popup spawn & title constraints */
@media (max-width: 768px) {
    .mobile-newline {
        display: block;
        /* Forces line break exclusively on mobile */
    }

    .vintage-window {
        position: fixed !important;
        /* override absolute on mobile to stay on screen */
        top: auto !important;
        bottom: 0 !important;
        /* anchor to bottom like a sheet */
        left: 0 !important;
        right: 0 !important;
        width: 100vw !important;
        max-height: 200px !important;
        /* Shrunk heavily to be far more compact */
        border-radius: 16px 16px 0 0 !important;
        transform: translateY(0) !important;
        /* override drag transforms instantly */
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    }

    .vintage-window.minimized {
        transform: translateY(calc(100% - 35px)) !important;
    }

    .heading-1 {
        font-size: 2.2rem !important;
        /* 'Welcome to' text drops remarkably in size */
        flex-direction: column !important;
    }

    .heading-1 span {
        font-size: 1.9em !important;
        /* 'ConcuDev' scales wildly up to fill the void */
        min-width: 100%;
        display: flex !important;
        justify-content: center;
        align-items: center;
    }
}