/* M3 Color Schemes (Flame Orange Theme) */
:root[data-theme="light"] {
    --md-sys-color-primary: #B13400;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #FFDBCF;
    --md-sys-color-on-primary-container: #3C0A00;
    --md-sys-color-secondary: #77574E;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-background: #FFF8F6;
    --md-sys-color-on-background: #231A17;
    --md-sys-color-surface: #FFF8F6;
    --md-sys-color-on-surface: #231A17;
    --md-sys-color-surface-variant: #F5DED8;
    --md-sys-color-on-surface-variant: #53433F;
    --md-sys-color-outline: #85736F;
    --md-sys-color-surface-container: #FCEAE5;
    --glow-color: rgba(177, 52, 0, 0.08);
}

:root[data-theme="dark"] {
    --md-sys-color-primary: #FFB59E;
    --md-sys-color-on-primary: #5F1500;
    --md-sys-color-primary-container: #862400;
    --md-sys-color-on-primary-container: #FFDBCF;
    --md-sys-color-secondary: #E6BEB4;
    --md-sys-color-on-secondary: #442A22;
    --md-sys-color-background: #1B110E;
    --md-sys-color-on-background: #F0DFDB;
    --md-sys-color-surface: #1B110E;
    --md-sys-color-on-surface: #F0DFDB;
    --md-sys-color-surface-variant: #53433F;
    --md-sys-color-on-surface-variant: #D8C2BC;
    --md-sys-color-outline: #A08D89;
    --md-sys-color-surface-container: #2A1D1A;
    --glow-color: rgba(255, 181, 158, 0.15);
}

/* Base Resets & Typography */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Top App Bar */
.top-app-bar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 16px 24px;
    position: absolute;
    width: 100%;
    top: 0;
    z-index: 10;
}

.actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Custom M3 Dropdown Menu Styling */
.m3-dropdown {
    position: relative;
    display: inline-block;
}

.m3-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--md-sys-color-surface-container);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 100px; /* Pillow shape matching M3 outline buttons */
    padding: 0 16px;
    height: 40px;
    color: var(--md-sys-color-on-surface);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    user-select: none;
}

.m3-dropdown-trigger:hover {
    background-color: var(--md-sys-color-surface-variant);
    border-color: var(--md-sys-color-primary);
}

.m3-dropdown-trigger .icon {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
}

.m3-dropdown-trigger .arrow {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
    transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1);
}

.m3-dropdown.open .arrow {
    transform: rotate(180deg);
}

.m3-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 150px;
    background-color: var(--md-sys-color-surface-container);
    border-radius: 12px; /* Smooth M3 menu radius */
    box-shadow: 0px 4px 16px rgba(0, 0, 0, 0.12), 0px 1px 4px rgba(0, 0, 0, 0.08);
    list-style: none;
    padding: 8px 0;
    margin: 0;
    opacity: 0;
    transform: scale(0.95) translateY(-10px);
    transform-origin: top right;
    pointer-events: none;
    transition: opacity 0.2s cubic-bezier(0.2, 0, 0, 1), transform 0.2s cubic-bezier(0.2, 0, 0, 1);
    z-index: 100;
}

.m3-dropdown.open .m3-dropdown-menu {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
}

.m3-dropdown-item {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.m3-dropdown-item:hover {
    background-color: var(--md-sys-color-surface-variant);
}

.m3-dropdown-item.selected {
    color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-primary-container);
}

/* M3 Standard Icon Button */
.icon-btn {
    background: none;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-variant);
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.icon-btn:hover {
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface);
}

.icon-btn:active {
    transform: scale(0.92);
}

/* Card Layout & Centering */
.container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    margin-top: 64px;
}

.card {
    background-color: var(--md-sys-color-surface-container);
    border-radius: 28px; /* M3 Card Standard shape */
    padding: 40px 32px;
    max-width: 520px;
    width: 100%;
    text-align: center;
    box-shadow: 0px 8px 32px var(--glow-color);
    opacity: 0;
    transform: translateY(24px);
    animation: cardEntrance 0.8s cubic-bezier(0.1, 1, 0.1, 1) forwards;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes cardEntrance {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Brand Header */
.brand-header {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.icon-container {
    width: 80px;
    height: 80px;
    background-color: var(--md-sys-color-primary-container);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.4s ease;
}

.brand-icon {
    font-size: 40px !important;
    color: var(--md-sys-color-primary);
    transition: color 0.4s ease;
}

.title-large {
    font-size: 28px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.body-medium {
    font-size: 16px;
    line-height: 1.6;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 32px;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Hyperlink Styling */
.flame-link {
    color: var(--md-sys-color-primary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: border-bottom-color 0.2s ease, color 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.flame-link:hover {
    border-bottom-color: var(--md-sys-color-primary);
}

.inline-icon {
    font-size: 16px !important;
    vertical-align: middle;
}

/* M3 Filled Button */
.card-actions {
    display: flex;
    justify-content: center;
}

.m3-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 48px;
    padding: 0 24px;
    border-radius: 100px;
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s cubic-bezier(0.2, 0, 0, 1), transform 0.1s ease, box-shadow 0.2s ease;
}

.filled-btn {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: 0px 2px 8px var(--glow-color);
}

.filled-btn:hover {
    background-color: var(--md-sys-color-primary);
    box-shadow: 0px 4px 12px var(--glow-color);
    opacity: 0.92;
}

.filled-btn:active {
    transform: scale(0.96);
}

.btn-icon {
    font-size: 18px !important;
}

/* Text Fade-Out & Fade-In on Language Switch */
.fade-out {
    opacity: 0;
    transform: translateY(4px);
}

/* Mobile Responsive Adjustments */
@media (max-width: 480px) {
    .card {
        padding: 32px 20px;
    }
    .title-large {
        font-size: 24px;
    }
    .body-medium {
        font-size: 15px;
    }
}