@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

:root {
    /* Light Mode Palette - Enhanced Visibility */
    --bg-color-light: #fdfbfb;
    --grad-1-light: #f8cdda;
    --grad-2-light: #fce4ec;
    --grad-3-light: #e1bee7;
    --container-bg-light: #ffffff;
    --text-color-light: #2c3e50;
    --primary-color-light: #d81b60;
    --primary-hover-light: #c2185b;
    --secondary-bg-light: #eceff1; /* New */
    --secondary-hover-light: #cfd8dc; /* New */
    --border-color-light: #e0e0e0;
    --glass-bg-light: rgba(255, 255, 255, 0.6);
    --glass-border-light: rgba(224, 224, 224, 0.9);
    --switch-bg-light: #B0BEC5; /* New */
    --switch-slider-light: #ffffff;

    /* Dark Mode Palette */
    --bg-color-dark: #13111C;
    --grad-1-dark: #ec407a; /* Pink */
    --grad-2-dark: #ab47bc; /* Purple */
    --grad-3-dark: #7e57c2; /* Deep Purple */
    --container-bg-dark: #1E1C2A;
    --text-color-dark: #e0e0e0;
    --primary-color-dark: #f06292;
    --primary-hover-dark: #ec407a;
    --secondary-bg-dark: #37474f; /* New */
    --secondary-hover-dark: #455a64; /* New */
    --border-color-dark: #39364e;
    --glass-bg-dark: rgba(44, 41, 61, 0.4);
    --glass-border-dark: rgba(255, 255, 255, 0.1);
    --switch-bg-dark: #546E7A; /* New */
    --switch-slider-dark: #13111C;
}

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

@keyframes subtle-gradient-animation {
    0% { background-position: 0% 50%, 50% 100%, 100% 0%; }
    50% { background-position: 100% 50%, 0% 0%, 50% 100%; }
    100% { background-position: 0% 50%, 50% 100%, 100% 0%; }
}

body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-color-dark);
    background-image: 
        radial-gradient(at 20% 20%, var(--grad-1-dark) 0px, transparent 50%),
        radial-gradient(at 80% 20%, var(--grad-3-dark) 0px, transparent 50%),
        radial-gradient(at 50% 80%, var(--grad-2-dark) 0px, transparent 50%);
    background-size: 200% 200%;
    animation: subtle-gradient-animation 25s ease-in-out infinite;
    color: var(--text-color-dark);
    transition: color 0.5s ease, background-color 0.5s ease;
}

body.light-mode {
    background-color: var(--bg-color-light);
    background-image: 
        radial-gradient(at 20% 20%, var(--grad-1-light) 0px, transparent 50%),
        radial-gradient(at 80% 20%, var(--grad-3-light) 0px, transparent 50%),
        radial-gradient(at 50% 80%, var(--grad-2-light) 0px, transparent 50%);
    color: var(--text-color-light);
}

.container {
    width: 90%;
    max-width: 750px;
    background: var(--container-bg-dark);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color-dark);
    transition: background 0.4s ease, border-color 0.4s ease;
}
body.light-mode .container {
    background: var(--container-bg-light);
    border-color: var(--border-color-light);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color-dark);
    padding-bottom: 1rem;
    transition: border-color 0.4s ease;
}
body.light-mode .header { border-color: var(--border-color-light); }

.header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color-dark);
    transition: color 0.4s ease;
}
body.light-mode .header h1 { color: var(--primary-color-light); }
.header h1 i { margin-right: 12px; }

/* Glass Button Style */
.glass-btn {
    background: var(--glass-bg-dark);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border-dark);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}
body.light-mode .glass-btn {
    background: var(--glass-bg-light);
    border-color: var(--glass-border-light);
}
.glass-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.theme-btn {
    color: var(--text-color-dark);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}
body.light-mode .theme-btn { color: var(--text-color-light); }

.controls { margin-bottom: 1.5rem; display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.control-group { display: flex; align-items: center; gap: 10px; }

#language-select {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color-dark);
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.4s ease;
}
body.light-mode #language-select {
    border-color: var(--border-color-light);
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
}

/* Switch Styles - Enhanced Visibility */
.switch { position: relative; display: inline-block; width: 50px; height: 26px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--switch-bg-dark); transition: .4s; }
body.light-mode .slider { background-color: var(--switch-bg-light); }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 3px; bottom: 3px; background-color: white; transition: .4s; }
input:checked + .slider { background-color: var(--primary-color-dark); }
body.light-mode input:checked + .slider { background-color: var(--primary-color-light); }
input:checked + .slider:before { background-color: var(--switch-slider-dark); }
body.light-mode input:checked + .slider:before { background-color: var(--switch-slider-light); }
input:checked + .slider:before { transform: translateX(24px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

.transcription-wrapper { width: 100%; height: 300px; display: flex; flex-direction: column; gap: 0; margin-bottom: 1.5rem; transition: gap 0.5s ease; }
.transcription-wrapper.append-active { gap: 1rem; }

#result-text, #append-text {
    width: 100%;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color-dark);
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
    font-size: 1rem;
    line-height: 1.6;
    resize: none;
    transition: all 0.5s ease;
}
body.light-mode #result-text, body.light-mode #append-text {
    border-color: var(--border-color-light);
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
}

#result-text { height: 100%; }
.append-container { height: 0; opacity: 0; overflow: hidden; transition: height 0.5s ease, opacity 0.5s ease; }
.transcription-wrapper.append-active #result-text { height: 80%; }
.transcription-wrapper.append-active .append-container { height: 20%; opacity: 1; }
#append-text { height: 100%; }

.button-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn { padding: 12px 20px; border-radius: 8px; font-size: 1rem; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; position: relative; overflow: hidden; }

/* Button Styles - Enhanced Visibility */
.primary-btn { color: white; flex-grow: 1; min-height: 48px; background-color: var(--primary-color-dark); }
body.light-mode .primary-btn { background-color: var(--primary-color-light); }
.primary-btn:hover { background-color: var(--primary-hover-dark); }
body.light-mode .primary-btn:hover { background-color: var(--primary-hover-light); }

.secondary-btn { color: var(--text-color-dark); background-color: var(--secondary-bg-dark); }
body.light-mode .secondary-btn { color: var(--text-color-light); background-color: var(--secondary-bg-light); }
.secondary-btn:hover { background-color: var(--secondary-hover-dark); }
body.light-mode .secondary-btn:hover { background-color: var(--secondary-hover-light); }

.wave-container { display: none; align-items: flex-end; height: 20px; gap: 3px; }
.wave-bar { width: 4px; height: 100%; background-color: white; border-radius: 2px; animation: wave-animation 1.2s ease-in-out infinite; }
.wave-bar:nth-child(2) { animation-delay: 0.2s; }
.wave-bar:nth-child(3) { animation-delay: 0.4s; }
.wave-bar:nth-child(4) { animation-delay: 0.6s; }
.wave-bar:nth-child(5) { animation-delay: 0.8s; }
@keyframes wave-animation { 0%, 100% { transform: scaleY(0.2); } 50% { transform: scaleY(1); } }
.primary-btn.listening .btn-text { display: none; }
.primary-btn.listening .wave-container { display: flex; }

/* Stats Container */
.stats-container {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: #90a4ae;
}
body.light-mode .stats-container {
    color: #78909c;
}
.stats-container .separator {
    margin: 0 10px;
}

.status-text { margin-top: 0.5rem; text-align: center; font-style: italic; color: #78909c; }
body.light-mode .status-text { color: #90a4ae; }