/* ==========================================================================
   1. Core Reset & Global Framework
   ========================================================================== */
:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --secondary-text: #4a5568;
    --subtle-p: #666666;
    --card-bg: #f4f6f9;
    --card-border: #e2e8f0;
    --accent-color: #0052ff;
    --accent-hover: #0041cc;
    --dropdown-bg: #ffffff;
    --dropdown-shadow: rgba(0, 0, 0, 0.1);
}

[data-user-theme="dark"] {
    --bg-color: #0b0f19;
    --text-color: #f1f5f9;
    --secondary-text: #cbd5e1;
    --subtle-p: #94a3b8;
    --card-bg: #1e293b;
    --card-border: #334155;
    --accent-color: #3b82f6;
    --accent-hover: #60a5fa;
    --dropdown-bg: #1e293b;
    --dropdown-shadow: rgba(0, 0, 0, 0.4);
}

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

body, html {
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Arial', sans-serif;
    overflow-x: hidden;
    overflow-y: auto;
}

body.theme-initialized, html.theme-initialized {
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ==========================================================================
   2. Fullscreen Screen Overlay Engine
   ========================================================================== */
.screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    justify-content: center; 
    align-items: center;     
    z-index: 10;
    overflow-y: auto;
    padding: 20px;
}
.screen.theme-initialized {
    transition: background-color 0.3s ease;
}

.hide {
    display: none !important;
}

/* ==========================================================================
   2.5 Global Floating Settings Shell Framework
   ========================================================================== */
#settings-widget {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000; 
}

#settings-trigger-btn {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 2px solid var(--card-border);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px var(--dropdown-shadow);
}

#settings-trigger-btn:hover {
    transform: rotate(45deg);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

#settings-dropdown {
    position: absolute;
    top: 52px;
    right: 0;
    background-color: var(--dropdown-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    width: 200px;
    box-shadow: 0 4px 20px var(--dropdown-shadow);
    padding: 8px;
    overflow: hidden;
}

.dropdown-item {
    width: 100%;
    background: transparent;
    border: none;
    padding: 10px 14px;
    text-align: left;
    font-size: 0.95rem;
    font-weight: bold;
    color: var(--text-color);
    cursor: pointer;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.15s ease;
}

.dropdown-item:hover {
    background-color: var(--card-bg);
}

.dropdown-item.active {
    color: var(--accent-color);
    background-color: var(--card-bg);
}

.arrow-indicator {
    font-size: 0.8rem;
    opacity: 0.7;
}

.back-sub-btn {
    color: var(--accent-color);
}

.menu-divider {
    border: 0;
    height: 1px;
    background: var(--card-border);
    margin: 6px 4px;
}

/* ==========================================================================
   3. Loading & Intro Splash States
   ========================================================================== */
#intro-container {
    z-index: 9999;
}

#intro-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

#intro-image {
    max-width: 150px;
    height: auto;
}

#intro-text h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    line-height: 1.1;
}

#intro-text p {
    font-size: 1.5rem;
    color: var(--subtle-p);
    letter-spacing: 2px;
}

#loader-container {
    z-index: 9998;
}

.loading-circle {
    width: 60px;
    height: 60px;
    border: 6px solid var(--card-border); 
    border-top: 6px solid var(--accent-color); 
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.4, 0, 0.2, 1) infinite; 
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   4. Main Platform Core Hub
   ========================================================================== */
#main-content {
    position: absolute;
    background-color: var(--bg-color);
    justify-content: flex-start; 
    align-items: center;
    padding: 30px 20px; 
    min-height: 100vh;
}

.route-view {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.main-title {
    font-size: 3.2rem; 
    font-weight: 900;  
    color: var(--text-color);
    margin-bottom: 30px;
    text-align: center;
}

/* ==========================================================================
   5. Interactive Oval Navigation System
   ========================================================================== */
.choices-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px; 
    width: 100%;
    flex-wrap: wrap; 
    margin-bottom: 15px;
}

.oval-choice {
    width: 330px;
    height: 460px;
    background-color: var(--card-bg); 
    border: 2px solid var(--card-border);
    border-radius: 50% / 35%; 
    opacity: 0.6;              
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 50px 35px;
    text-align: center;
    transition: opacity 0.25s ease-in-out, transform 0.2s ease-in-out, background-color 0.3s ease, border-color 0.3s ease; 
}

.oval-choice:hover {
    opacity: 1; 
    cursor: pointer;
    transform: translateY(-4px);
}

.choice-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 20px;
}

.oval-choice h2 {
    font-size: 1.35rem;
    color: var(--text-color);
    margin-bottom: 15px;
    font-weight: bold;
}

.choice-desc {
    font-size: 0.95rem;
    color: var(--secondary-text);
    line-height: 1.4;
}

/* ==========================================================================
   6. Data Panels & Information Windows
   ========================================================================== */
.info-view-container {
    max-width: 800px;
    padding: 10px 20px;
    text-align: center;
    width: 100%;
}

.info-title {
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-color);
    margin-bottom: 15px;
    text-transform: uppercase;
}

.info-body {
    font-size: 1.05rem; 
    color: var(--secondary-text);
    line-height: 1.5;
    margin-bottom: 20px;
}

/* ==========================================================================
   8. Global Navigation Buttons
   ========================================================================== */
.back-navigation-btn {
    background-color: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    padding: 10px 28px;
    font-size: 0.95rem;
    font-weight: bold;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 5px; 
}

.back-navigation-btn:hover {
    background-color: var(--accent-color);
    color: #ffffff;
}

/* ==========================================================================
   9. Network Connectivity Error Handling Screens
   ========================================================================== */
#error-screen {
    z-index: 9997;
}

.error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 600px;
    text-align: center;
    padding: 20px;
}

.coin-group {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px; 
    margin-bottom: 30px;
}

.coin {
    width: 100px;
    height: auto;
}

.coin-center {
    width: 120px;
    z-index: 2;
}

.error-text h2 {
    font-size: 2.5rem;
    color: #ff3b30;
    margin-bottom: 15px;
}

.error-text p {
    font-size: 1.2rem;
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 40px;
}

#retry-btn {
    background-color: var(--accent-color);
    color: #ffffff;
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 30px;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 82, 255, 0.3);
    transition: background 0.2s ease, transform 0.1s ease;
}

#retry-btn:hover {
    background-color: var(--accent-hover);
}

#retry-btn:active {
    transform: scale(0.98);
}

/* ==========================================================================
   10. Zoom Transition Animations (Big Snake & PumpTube)
   ========================================================================== */
#snake-intro-overlay,
#pumptube-intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-color); 
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999;
    opacity: 1;
    transition: background-color 0.35s ease-out, opacity 0.2s ease-out;
}

#snake-intro-logo,
#pumptube-intro-logo {
    width: 180px; 
    height: auto;
    object-fit: contain;
    opacity: 1;
    transition: width 0.4s cubic-bezier(0.25, 1, 0.2, 1), 
                opacity 0.3s ease-out;
    will-change: width, opacity;
}

#snake-intro-logo.zoom-out-state,
#pumptube-intro-logo.zoom-out-state {
    width: 140px;
}

#snake-intro-logo.zoom-in-max-state,
#pumptube-intro-logo.zoom-in-max-state {
    width: 450vw;
    opacity: 0;
}

#snake-intro-overlay.fade-overlay-state,
#pumptube-intro-overlay.fade-overlay-state {
    background-color: rgba(255, 255, 255, 0);
    pointer-events: none;
}

/* ==========================================================================
   11. Responsiveness Adjustments
   ========================================================================== */
@media (max-width: 768px) {
    #main-content {
        padding: 15px 15px;
    }
    .main-title, .info-title {
        font-size: 2rem;
        margin-bottom: 15px;
    }
    .oval-choice {
        width: 100%;
        max-width: 290px;
        height: 380px;
        padding: 30px 20px;
    }
    .info-body {
        font-size: 0.95rem;
        line-height: 1.4;
        margin-bottom: 15px;
    }
    #snake-intro-logo,
    #pumptube-intro-logo {
        width: 135px;
    }
    #snake-intro-logo.zoom-out-state,
    #pumptube-intro-logo.zoom-out-state {
        width: 105px;
    }
    #snake-intro-logo.zoom-in-max-state,
    #pumptube-intro-logo.zoom-in-max-state {
        width: 600vw;
    }
    #settings-widget {
        top: 10px;
        right: 10px;
    }
}

/* ==========================================================================
   12. Nostalgic Card/Button & Giveaway Modal
   ========================================================================== */
.primary-action-btn,
.secondary-action-btn {
    border: none;
    border-radius: 999px;
    padding: 11px 22px;
    font-size: 0.95rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.2s ease;
}

.primary-action-btn {
    background-color: var(--accent-color);
    color: #ffffff;
}

.secondary-action-btn {
    background-color: transparent;
    color: var(--text-color);
    border: 2px solid var(--card-border);
}

.primary-action-btn:hover,
.secondary-action-btn:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100000;
    padding: 20px;
}

.modal-content {
    width: min(720px, 100%);
    background: var(--dropdown-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 28px 24px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
}

.modal-content h2 {
    margin-bottom: 14px;
    font-size: 1.9rem;
}

.modal-content p {
    color: var(--secondary-text);
    line-height: 1.6;
    margin-bottom: 18px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}

#giveaway-wallet-form {
    display: grid;
    gap: 10px;
    text-align: left;
}

#giveaway-wallet-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font: inherit;
}

#giveaway-wallet-submit {
    justify-self: start;
}

#giveaway-wallet-submit:disabled {
    cursor: wait;
    opacity: 0.65;
}

#giveaway-wallet-status {
    min-height: 1.5em;
    margin: 14px 0 0;
    color: var(--secondary-text);
    overflow-wrap: anywhere;
}

#nostalgic-giveaway-btn {
    display: inline-block;
    margin-left: 8px;
    vertical-align: middle;
}

#giveaway-dashboard-view {
    max-width: 860px;
    gap: 18px;
    padding: 24px 18px 36px;
    text-align: center;
}

.giveaway-dashboard-header {
    width: 100%;
}

.giveaway-tabs {
    display: flex;
    justify-content: center;
    width: 100%;
    border-bottom: 1px solid var(--card-border);
}

.giveaway-tab {
    min-width: 130px;
    padding: 12px 16px;
    border: 0;
    border-bottom: 3px solid transparent;
    background: transparent;
    color: var(--secondary-text);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.giveaway-tab.active {
    border-bottom-color: var(--accent-color);
    color: var(--accent-color);
}

.giveaway-tab-panel {
    display: grid;
    gap: 16px;
    width: 100%;
}

.dashboard-eyebrow,
.stat-label {
    color: var(--subtle-p);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.dashboard-eyebrow {
    margin-bottom: 10px;
}

.dashboard-wallet {
    color: var(--secondary-text);
    font-family: monospace;
    overflow-wrap: anywhere;
}

.dashboard-status {
    color: var(--secondary-text);
    min-height: 1.5em;
}

.giveaway-countdown {
    width: 100%;
    padding: 28px 16px;
    border: 1px solid var(--card-border);
    border-left: 5px solid var(--accent-color);
    border-radius: 6px;
    background: var(--card-bg);
}

.giveaway-countdown p:first-child {
    color: var(--secondary-text);
    font-weight: 700;
}

.countdown-value {
    margin-top: 8px;
    font-family: monospace;
    font-size: 2.5rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.giveaway-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    overflow: hidden;
}

.giveaway-stat {
    display: grid;
    align-content: center;
    gap: 8px;
    min-height: 100px;
    padding: 14px 10px;
    background: var(--card-bg);
}

.giveaway-stat + .giveaway-stat {
    border-left: 1px solid var(--card-border);
}

.giveaway-stat strong {
    overflow-wrap: anywhere;
    font-size: 1.15rem;
}

.dashboard-winner {
    width: 100%;
    padding: 20px 12px;
    border: 1px solid var(--card-border);
    border-radius: 6px;
}

.dashboard-winner h2 {
    margin-bottom: 10px;
}

.dashboard-winner p {
    overflow-wrap: anywhere;
}

.dashboard-badges {
    min-height: 1.5em;
    color: var(--accent-color);
    font-weight: 800;
}

.coupon-form,
.admin-login-form {
    display: grid;
    gap: 10px;
    width: 100%;
    text-align: left;
}

.coupon-form input,
.coupon-form select,
.admin-login-form input {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font: inherit;
}

.coupon-form button,
.admin-login-form button {
    justify-self: start;
}

.coupon-list {
    display: grid;
    gap: 8px;
    width: 100%;
    list-style: none;
    text-align: left;
}

.coupon-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-width: 0;
    padding: 10px 12px;
    border-bottom: 1px solid var(--card-border);
    overflow-wrap: anywhere;
}

.coupon-cancel-btn {
    flex: 0 0 auto;
    padding: 7px 12px;
}

.coupon-help,
#redeem-coupon-status,
#admin-panel-status,
#admin-login-status,
#admin-coupon-status {
    min-height: 1.5em;
    color: var(--secondary-text);
    overflow-wrap: anywhere;
}

.dashboard-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

#admin-panel-view {
    max-width: 900px;
    gap: 20px;
    padding: 24px 18px 36px;
    text-align: center;
}

.admin-login-form {
    max-width: 480px;
    padding: 20px;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    background: var(--card-bg);
}

.admin-controls {
    display: grid;
    gap: 18px;
    width: 100%;
    text-align: left;
}

.admin-section {
    display: grid;
    gap: 12px;
    width: 100%;
    padding: 18px;
    border-bottom: 1px solid var(--card-border);
}

.admin-section h2 {
    font-size: 1.2rem;
}

.admin-section p {
    color: var(--secondary-text);
}

#admin-start-giveaway-btn:disabled,
#admin-generate-coupon-btn:disabled,
#admin-login-btn:disabled,
#redeem-coupon-btn:disabled {
    cursor: wait;
    opacity: 0.6;
}

@media (max-width: 600px) {
    .giveaway-stats {
        grid-template-columns: 1fr;
    }

    .giveaway-stat {
        min-height: 76px;
    }

    .giveaway-stat + .giveaway-stat {
        border-top: 1px solid var(--card-border);
        border-left: 0;
    }

    .countdown-value {
        font-size: 1.8rem;
    }

    .giveaway-tab {
        flex: 1;
        min-width: 0;
    }

    .coupon-list li {
        align-items: flex-start;
        flex-direction: column;
    }
}