/* ==== GLOBAL ==== */
body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at 30% 20%, #1a1a1a, #0d0d0d 80%);
    color: #e5e5e5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
}

/* Floating gradient orbs (ambient effect) */
body::before, body::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.35;
    z-index: 0;
}
body::before {
    width: 450px; height: 450px;
    background: #4285F4;
    top: -100px; left: -150px;
}
body::after {
    width: 500px; height: 500px;
    background: #d96570;
    bottom: -120px; right: -180px;
}

/* ==== CONTAINER ==== */
.container {
    position: relative;
    z-index: 1;
    text-align: center;
    background: rgba(25, 25, 25, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    padding: 50px 40px;
    border-radius: 28px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.7), inset 0 0 40px rgba(255,255,255,0.03);
    max-width: 560px;
    width: 92%;
    animation: fadeIn 1s ease-in-out;
    border: 1px solid rgba(255, 255, 255, 0.07);
}

/* ==== HEADER ==== */
header h1 {
    font-size: 2.9rem;
    font-weight: 800;
    margin-bottom: 14px;
    background: linear-gradient(90deg, #4285F4, #9b72cb, #d96570, #f2a60c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 300% 300%;
    animation: gradientFlow 8s infinite linear;
    letter-spacing: 1.2px;
}

header p {
    font-size: 1.1rem;
    color: #c7c7c7;
    margin-bottom: 34px;
    line-height: 1.6;
}

/* ==== STATUS ==== */
#status-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 24px;
    min-height: 30px;
}

#status-light {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

#status-light.idle {
    background-color: #777;
    box-shadow: 0 0 6px #777;
}

#status-light.listening {
    background-color: #4CAF50;
    box-shadow: 0 0 20px #4CAF50;
    animation: pulseGlow 1.5s infinite;
}

#status-light.speaking {
    background-color: #2196F3;
    box-shadow: 0 0 20px #2196F3;
    animation: pulseGlow 1.2s infinite alternate;
}

#status-text {
    font-size: 1.05rem;
    color: #d0d0d0;
    letter-spacing: 0.5px;
}

/* ==== RESPONSE BOX ==== */
#response {
    background: rgba(40, 40, 40, 0.85);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 34px;
    min-height: 70px;
    text-align: left;
    color: #f1f1f1;
    line-height: 1.65;
    font-size: 1rem;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: inset 0 0 25px rgba(0, 0, 0, 0.4);
    transition: all 0.4s ease;
}
#response:hover {
    background: rgba(55, 55, 55, 0.95);
    box-shadow: inset 0 0 30px rgba(0,0,0,0.5), 0 0 12px rgba(255,255,255,0.05);
}

/* ==== TALK BUTTON ==== */
#talk-button {
    background: linear-gradient(135deg, #4285F4, #3c78d8);
    color: white;
    border: none;
    border-radius: 60px;
    padding: 18px 38px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    transition: all 0.35s ease;
    box-shadow: 0 10px 28px rgba(66, 133, 244, 0.45);
    position: relative;
    overflow: hidden;
}
#talk-button::before {
    content: "";
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(120deg, rgba(255,255,255,0.3), transparent);
    transform: skewX(-25deg);
}
#talk-button:hover::before {
    left: 100%;
    transition: left 0.7s ease;
}
#talk-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 14px 32px rgba(66, 133, 244, 0.6);
}
#talk-button:active {
    transform: scale(0.96);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}
#talk-button.recording {
    background: linear-gradient(135deg, #ff4d6d, #c81e42);
    box-shadow: 0 12px 35px rgba(255,77,109,0.55);
}
#talk-button.recording:hover {
    box-shadow: 0 14px 38px rgba(255,77,109,0.7);
}

/* ==== FOOTER ==== */
footer {
    margin-top: 35px;
    font-size: 0.85rem;
    color: #888;
    letter-spacing: 0.6px;
}

/* ==== ANIMATIONS ==== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulseGlow {
    0% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(1); opacity: 0.9; }
}
@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}