:root {
    --bg-deep: hsl(0, 0%, 4%);
    --bg-glass: hsla(0, 0%, 100%, 0.03);
    --glass-border: hsla(0, 0%, 100%, 0.1);
    --accent-red: hsl(0, 72%, 51%);
    --accent-red-glow: hsla(0, 72%, 51%, 0.4);
    --text-main: hsl(0, 0%, 100%);
    --text-dim: hsl(0, 0%, 70%);
    --text-muted: hsl(0, 0%, 40%);
    --font-primary: 'Outfit', 'Inter', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-primary);
    height: 100dvh;
    overflow: hidden;
    background-image:
        radial-gradient(circle at 50% -20%, hsla(0, 72%, 51%, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 0% 100%, hsla(0, 72%, 51%, 0.05) 0%, transparent 40%);
}

#canvas-container {
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: 0.6;
}

.app-container {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
}

/* Premium Header */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.glass-premium {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 0.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 50%;
}

.action-btn:hover {
    color: var(--text-main);
    background: hsla(0, 0%, 100%, 0.05);
}

/* Chat Area */
.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 2rem 1rem;
}

.scroll-container::-webkit-scrollbar {
    width: 4px;
}

.scroll-container::-webkit-scrollbar-track {
    background: transparent;
}

.scroll-container::-webkit-scrollbar-thumb {
    background: hsla(0, 0%, 100%, 0.1);
    border-radius: 10px;
}

.messages-wrapper {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.message-row {
    display: flex;
    gap: 1.25rem;
    animation: slide-up 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.message-row.user {
    flex-direction: row-reverse;
}

.avatar-wrapper {
    flex-shrink: 0;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
}

.soma-aura {
    background: linear-gradient(135deg, hsla(0, 72%, 51%, 0.3), hsla(0, 72%, 51%, 0.1));
    color: var(--text-main);
    box-shadow: 0 0 25px hsla(0, 72%, 51%, 0.2);
    border: 1px solid hsla(0, 72%, 51%, 0.3);
}

.user-aura {
    background: hsla(0, 0%, 100%, 0.05);
    color: var(--text-dim);
    border: 1px solid var(--glass-border);
}

.message-bubble {
    padding: 1.25rem 1.5rem;
    border-radius: 1.5rem;
    max-width: 75%;
    position: relative;
    line-height: 1.7;
    transition: var(--transition-smooth);
}

.soma-bubble {
    background: linear-gradient(145deg, hsla(0, 0%, 100%, 0.05), hsla(0, 0%, 100%, 0.02));
    border: 1px solid hsla(0, 0%, 100%, 0.08);
    border-top-left-radius: 0;
    box-shadow:
        inset 0 1px 1px hsla(0, 0%, 100%, 0.05),
        0 4px 20px hsla(0, 0%, 0%, 0.3);
}

.soma-bubble::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, hsla(0, 72%, 51%, 0.5), transparent 40%, transparent 60%, hsla(0, 72%, 51%, 0.2));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.user-bubble {
    background: var(--accent-red);
    color: white;
    border-top-right-radius: 0;
    box-shadow: 0 4px 15px hsla(0, 72%, 51%, 0.3);
}

.bubble-content-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.message-content {
    font-size: 1.05rem;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.soma-bubble .message-content {
    color: hsla(0, 0%, 100%, 0.95);
    text-shadow: 0 1px 2px hsla(0, 0%, 0%, 0.5);
}

.message-time {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
}

/* Audio Play Button - Refined & Inline */
.audio-play-btn {
    flex-shrink: 0;
    background: var(--bg-glass);
    border: 1px solid var(--glass-border);
    color: var(--accent-red);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 10px hsla(0, 0%, 0%, 0.2);
    margin-top: 0.2rem;
}

.audio-play-btn i {
    width: 16px;
    height: 16px;
    transition: var(--transition-smooth);
    z-index: 2;
}

.audio-play-btn:hover {
    background: var(--accent-red);
    color: white;
    scale: 1.1;
    border-color: var(--accent-red);
    box-shadow: 0 0 15px var(--accent-red-glow);
}

.audio-play-btn.playing {
    background: var(--accent-red);
    color: white;
    border-color: var(--accent-red);
}

/* Input Area */
.app-footer {
    padding: 2rem;
    background: linear-gradient(to top, var(--bg-deep), transparent);
}

.input-container-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.input-bar {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.input-bar:focus-within {
    border-color: var(--accent-red);
    box-shadow: 0 0 30px hsla(0, 72%, 51%, 0.15);
}

.input-tool-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-dim);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    position: relative;
}

.mic-btn.recording {
    color: white;
    background: var(--accent-red);
}

.mic-btn.recording .pulse-ring {
    position: absolute;
    inset: -5px;
    border: 1px solid var(--accent-red);
    border-radius: 50%;
    animation: ring-pulse 1.5s infinite;
}

.send-btn.active {
    color: var(--accent-red);
}

.send-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.input-field-wrapper {
    flex: 1;
    position: relative;
    padding: 0 1rem;
}

#user-input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 1rem;
    padding: 0.75rem 0;
}

#user-input::placeholder {
    color: var(--text-muted);
}

.brand-subtext {
    text-align: center;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    margin-top: 1.5rem;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.dot {
    width: 4px;
    height: 4px;
    background: var(--accent-red);
    border-radius: 50%;
    animation: dot-bounce 1s infinite alternate;
}

.dot:nth-child(2) {
    animation-delay: 0.2s;
}

.dot:nth-child(3) {
    animation-delay: 0.4s;
}

/* Animations */
@keyframes orb-pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.3);
        opacity: 0.6;
    }
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@keyframes audio-ripple {
    from {
        box-shadow: 0 0 0px var(--accent-red);
    }

    to {
        box-shadow: 0 0 15px var(--accent-red);
    }
}

@keyframes ring-pulse {
    from {
        transform: scale(0.8);
        opacity: 1;
    }

    to {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes dot-bounce {
    from {
        transform: translateY(0);
        opacity: 0.4;
    }

    to {
        transform: translateY(-4px);
        opacity: 1;
    }
}

/* Modal System */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: hsla(0, 0%, 0%, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    width: 100%;
    max-width: 500px;
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
    overflow: hidden;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.modal-overlay:not(.hidden) .modal-container {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--accent-red);
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition-smooth);
}

.close-btn:hover {
    color: var(--text-main);
    scale: 1.1;
}

.modal-body {
    padding: 2rem;
    max-height: 70vh;
    overflow-y: auto;
}

/* Settings Controls */
.settings-group {
    margin-bottom: 2rem;
}

.settings-group:last-child {
    margin-bottom: 0;
}

.settings-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
    font-weight: 500;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

input[type="range"] {
    flex: 1;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    appearance: none;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-red);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-red-glow);
    transition: var(--transition-smooth);
}

input[type="range"]::-webkit-slider-thumb:hover {
    scale: 1.2;
}

.slider-val {
    min-width: 3rem;
    text-align: right;
    font-weight: 700;
    color: var(--text-main);
}

.danger-zone {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid hsla(0, 72%, 51%, 0.1);
}

.btn-secondary {
    width: 100%;
    padding: 1rem;
    border-radius: 1rem;
    border: 1px solid hsla(0, 72%, 51%, 0.3);
    background: hsla(0, 72%, 51%, 0.05);
    color: var(--accent-red);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-secondary:hover {
    background: var(--accent-red);
    color: white;
}

.about-text {
    line-height: 1.8;
    color: hsla(0, 0%, 100%, 0.8);
}

.about-text p {
    margin-bottom: 1rem;
}

.hidden {
    display: none !important;
}

/* Welcome Screen Styles */
.welcome-screen {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: black;
    transition: transform 1s cubic-bezier(0.85, 0, 0.15, 1), opacity 1s ease;
}

#welcome-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

.welcome-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom,
            hsla(0, 0%, 0%, 0.4) 0%,
            hsla(0, 0%, 0%, 0.7) 100%);
    z-index: 1;
}

.welcome-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 600px;
    padding: 2rem;
    animation: fadeIn 2s ease;
}

.welcome-quote {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-dim);
    margin-bottom: 4rem;
    letter-spacing: 0.05em;
}

.enter-btn {
    position: relative;
    padding: 1.25rem 3rem;
    border-radius: 3rem;
    border: 1px solid hsla(0, 72%, 51%, 0.4);
    color: white;
    font-weight: 700;
    letter-spacing: 0.2em;
    cursor: pointer;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.enter-btn:hover {
    scale: 1.05;
    border-color: var(--accent-red);
    box-shadow: 0 0 30px var(--accent-red-glow);
}

.btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, hsla(0, 72%, 51%, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.enter-btn:hover .btn-glow {
    transform: translateX(100%);
}

.brand-subtext.small {
    margin-top: 3rem;
    font-size: 0.6rem;
    opacity: 0.5;
}

/* Page Transition States */
.welcome-screen.fade-out {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

.app-container {
    opacity: 1;
    transition: opacity 1.5s ease;
}

.app-container.hidden {
    display: none;
    opacity: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* Mobile Optimizations */
@media (max-width: 640px) {
    .app-header {
        padding: 1rem;
    }

    .message-bubble {
        max-width: 85%;
    }

    .audio-play-btn {
        /* Button now stays beside the text due to flex row */
    }

    .app-footer {
        padding: 1rem;
    }
}