:root {
    /* Standard Theme Colors (Parchment) */
    --clr-parchment-bg: #f4ebd8;
    --clr-parchment-dark: #d5c8ab;
    --clr-parchment-text: #2a2015;
    --clr-parchment-accent: #783515;

    /* Premium Theme Colors (Low Light) */
    --clr-low-light-bg: #0f111a;
    --clr-low-light-accent: #b08d57;
    /* soft gold */
    --clr-low-light-text: #e2e8f0;
    --clr-low-light-panel: #1e2233;

    /* Common */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --radius: 12px;
    --transition: 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    padding: 20px 0;
    background-color: var(--clr-parchment-bg);
    color: var(--clr-parchment-text);
    transition: background-color var(--transition), color var(--transition);
}

body.malayalam-font,
body.malayalam-font button,
body.malayalam-font input,
body.malayalam-font textarea,
body.malayalam-font select,
body.malayalam-font .title-nav,
body.malayalam-font h1,
body.malayalam-font h2,
body.malayalam-font h3 {
    font-family: 'Noto Sans Malayalam', sans-serif !important;
}

body.theme-premium {
    background-color: var(--clr-low-light-bg);
    color: var(--clr-low-light-text);
}

.screen {
    display: none;
    width: 100%;
    max-width: 600px;
    height: 100vh;
    height: 100dvh;
    /* Dynamic viewport height for modern mobile browsers */
    flex-direction: column;
}

.screen.active {
    display: flex;
}

/* Landing Screen */
header {
    text-align: center;
    padding: 3rem 1rem 1rem;
}

.logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--clr-parchment-accent);
}

.subtitle {
    font-style: italic;
    font-size: 0.9rem;
    color: #5a4b41;
    margin-top: 5px;
}

.language-selector {
    margin-top: 20px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.85);
    /* Much brighter backer */
    padding: 10px 18px;
    border-radius: 25px;
    border: 2px solid var(--clr-parchment-accent);
    /* Make it stand out tightly */
    box-shadow: 0 4px 12px rgba(120, 53, 21, 0.15);
    /* Soft drop shadow */
    transition: transform var(--transition), box-shadow var(--transition);
}

.language-selector:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(120, 53, 21, 0.25);
}

.language-selector i {
    color: var(--clr-parchment-accent);
    font-size: 1.2rem;
}

.language-selector select {
    background: transparent;
    border: none;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--clr-parchment-accent);
    outline: none;
    cursor: pointer;
    font-weight: 700;
    letter-spacing: 0.02em;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 20px;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNCIgaGVpZ2h0PSIxNCIgdmlld0JveD0iMCAwIDI0IDI0IiBmaWxsPSJub25lIiBzdHJva2U9IiM3ODM1MTUiIHN0cm9rZS13aWR0aD0iMi41IiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiPjxwYXRoIGQ9Ik02IDlsNiA2IDYtNiIvPjwvc3ZnPg==');
    background-repeat: no-repeat;
    background-position: right center;
}

.tier-selection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
    max-width: 900px;
    margin: 0 auto;
    align-items: stretch;
}

.tier-card {
    background: #fffdf5;
    border: 1px solid var(--clr-parchment-dark);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tier-card:hover {
    transform: translateY(-5px);
}

.tier-card h2 {
    font-family: var(--font-heading);
    color: var(--clr-parchment-accent);
    margin-bottom: 0.5rem;
}

.tier-desc {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 0.85rem;
    margin-bottom: 2rem;
    align-items: flex-start;
    width: fit-content;
    margin-inline: auto;
}

.features span {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-align: left;
}

.features span i {
    width: 20px;
    text-align: center;
    flex-shrink: 0;
    margin-top: 3px;
}

.action-btn {
    background: var(--clr-parchment-accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 600;
    transition: opacity 0.2s;
}

.action-btn:hover {
    opacity: 0.9;
}

.action-btn.outline {
    background: transparent;
    border: 1px solid var(--clr-low-light-accent);
    color: var(--clr-low-light-accent);
}

.action-btn.outline:hover {
    background: var(--clr-low-light-accent);
    color: var(--clr-low-light-bg);
}

.tier-card.premium {
    background: var(--clr-low-light-panel);
    border: 1px solid #2a2e41;
    color: var(--clr-low-light-text);
}

.tier-card.premium h2 {
    color: var(--clr-low-light-accent);
}

.premium-badge {
    position: absolute;
    top: 15px;
    right: -30px;
    background: var(--clr-low-light-accent);
    color: var(--clr-low-light-bg);
    font-size: 0.7rem;
    font-weight: bold;
    padding: 5px 30px;
    transform: rotate(45deg);
}

/* Landing Page Disclaimer */
.disclaimer {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    text-align: center;
    border-top: 1px solid rgba(139, 116, 88, 0.3);
}

.disclaimer h3 {
    font-size: 0.9rem;
    color: #5c4731;
    margin-bottom: 5px;
    font-weight: bold;
}

.disclaimer p {
    font-size: 0.8rem;
    color: #8b7458;
    line-height: 1.4;
    margin-bottom: 8px;
}

/* Nav Styles */
nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.premium-nav {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.back-btn {
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    color: inherit;
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
}

.title-nav {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.timer {
    font-size: 0.8rem;
    font-family: monospace;
    color: var(--clr-low-light-accent);
}

.bgm-control {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-top: -2.5rem;
    /* Close to visualizer dots */
    margin-bottom: 3.5rem;
    z-index: 20;
}

.volume-container {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 140px;
    color: var(--clr-low-light-accent);
    opacity: 0.8;
}

#bgm-volume {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(176, 141, 87, 0.2);
    border-radius: 5px;
    outline: none;
    cursor: pointer;
}

#bgm-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--clr-low-light-accent);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(176, 141, 87, 0.5);
}

.bgm-btn {
    background: rgba(176, 141, 87, 0.1);
    /* Subtle theme tint */
    border: 1.5px solid var(--clr-low-light-accent);
    color: var(--clr-low-light-accent);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.7rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-body);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    box-shadow: 0 0 10px rgba(176, 141, 87, 0.1);
}

.bgm-btn:hover {
    background: rgba(176, 141, 87, 0.2);
    box-shadow: 0 0 15px rgba(176, 141, 87, 0.2);
}

.bgm-btn.off {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.4);
    box-shadow: none;
}

.bgm-btn i {
    font-size: 0.75rem;
    color: var(--clr-low-light-accent);
}

.bgm-btn.off i {
    color: rgba(255, 255, 255, 0.3);
}

/* Status Dot Indicator */
.bgm-btn::after {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--clr-low-light-accent);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 0 5px var(--clr-low-light-accent);
}

.bgm-btn.off::after {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: none;
}

/* Standard Screen */
.parchment-bg {
    background-image: url('data:image/svg+xml;utf8,<svg width="200" height="200" xmlns="http://www.w3.org/2000/svg"><filter id="noiseFilter"><feTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23noiseFilter)" opacity="0.05"/></svg>');
    background-color: var(--clr-parchment-bg);
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.scroll-area {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    max-width: 90%;
    padding: 15px 20px;
    border-radius: var(--radius);
    line-height: 1.6;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.message p {
    margin-bottom: 0.5rem;
}

.message p:last-child {
    margin-bottom: 0;
}

.message strong,
.message em {
    color: var(--clr-parchment-accent);
}

.system {
    align-self: flex-start;
    background: #fffdf5;
    border: 1px solid var(--clr-parchment-dark);
    font-family: var(--font-heading);
    font-size: 1.05rem;
}

.user {
    align-self: flex-end;
    background: var(--clr-parchment-accent);
    color: white;
}

.input-area {
    display: flex;
    gap: 12px;
    margin: 1.5rem auto 3rem;
    width: 100%;
    max-width: 600px;
    background: rgba(255, 253, 245, 0.7);
    padding: 12px;
    border-radius: 20px;
    border: 1px solid rgba(139, 116, 88, 0.2);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
}

textarea {
    flex: 1;
    resize: none;
    padding: 15px;
    border-radius: var(--radius);
    border: 1px solid var(--clr-parchment-dark);
    background: #fffdf5;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--clr-parchment-text);
}

.send-btn {
    width: 50px;
    border-radius: var(--radius);
    border: none;
    background: var(--clr-parchment-accent);
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
}

/* Premium Screen */
.low-light-bg {
    background-color: var(--clr-low-light-bg);
}

.booth-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.visualizer {
    display: flex;
    gap: 10px;
    height: 100px;
    align-items: center;
    margin-bottom: 2rem;
}

.bar {
    width: 10px;
    height: 10px;
    background: var(--clr-low-light-accent);
    border-radius: 5px;
    transition: height 0.1s ease;
}

.status-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 3rem;
    font-style: italic;
    min-height: 24px;
}

.mic-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--clr-low-light-accent);
    background: transparent;
    color: var(--clr-low-light-accent);
    font-size: 2rem;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.mic-btn.active {
    background: rgba(176, 141, 87, 0.2);
    box-shadow: 0 0 30px rgba(176, 141, 87, 0.3);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(176, 141, 87, 0.4);
    }

    70% {
        transform: scale(1.1);
        box-shadow: 0 0 0 15px rgba(176, 141, 87, 0);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(176, 141, 87, 0);
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal.active {
    display: flex;
}

.modal-content {
    width: 90%;
    max-width: 400px;
    padding: 2rem;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--clr-parchment-dark);
}

.modal-content h3 {
    font-family: var(--font-heading);
    color: var(--clr-parchment-accent);
    margin-bottom: 1.5rem;
}

#prayer-card-content {
    text-align: center;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    max-height: 55vh;
    overflow-y: auto;
    padding: 0 15px;
    font-family: var(--font-heading);
}

#prayer-card-content blockquote {
    background: rgba(120, 53, 21, 0.05);
    border-top: 1px solid var(--clr-parchment-dark);
    border-bottom: 1px solid var(--clr-parchment-dark);
    margin: 1.5rem auto;
    padding: 1.5rem 1rem;
    font-style: italic;
    color: var(--clr-parchment-accent);
    position: relative;
    font-size: 1.1rem;
}

#prayer-card-content blockquote::before {
    content: "❝";
    display: block;
    font-size: 2rem;
    opacity: 0.3;
    line-height: 1;
    margin-bottom: 10px;
}

#prayer-card-content p {
    margin-bottom: 1rem;
}

#prayer-card-content strong,
#prayer-card-content em {
    color: var(--clr-parchment-accent);
    font-weight: 700;
}

.modal-actions {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.action-btn.danger {
    background: #d32f2f;
}

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

    .input-area {
        margin: 1rem auto 1rem;
        /* Reduce bottom margin on mobile to stay above toolbars */
        max-width: 95%;
        padding: 8px;
    }

    /* Fix for overlapping Nav text in Malayalam */
    .malayalam-font nav {
        padding: 0.8rem 0.5rem;
    }

    .malayalam-font .back-btn {
        font-size: 0.8rem;
        white-space: nowrap;
        flex-shrink: 0;
        z-index: 10;
    }

    .malayalam-font .title-nav {
        font-size: 0.9rem;
        white-space: nowrap;
    }

    .chat-container {
        padding: 0.75rem;
    }
}

@media (max-width: 380px) {
    .malayalam-font .title-nav {
        font-size: 0.8rem;
    }

    .malayalam-font .back-btn {
        font-size: 0.75rem;
    }
}