/* === Global Reset === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

/* === Body === */
body {
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    color: #333;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: background 0.3s ease;
}

/* === Card Containers === */
.auth-container,
.welcome-container,
.chat-container {
    background: #fff;
    border-radius: 1rem;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    animation: slide-up 0.6s ease;
    transition: background 0.3s ease, color 0.3s ease;
}

.chat-container {
    max-width: 500px;
    height: 80vh;
    display: flex;
    flex-direction: column;
}

/* === Header Section === */
.auth-header {
    background: linear-gradient(90deg, #ff6b95, #ff8e8e);
    padding: 1.5rem;
    color: #fff;
}

.auth-header h2 {
    font-size: 1.8rem;
    margin-bottom: 0.3rem;
}

.auth-header p {
    font-size: 1rem;
    opacity: 0.9;
}

.chat-header {
    background: linear-gradient(90deg, #ff6b95, #ff8e8e);
    padding: 1rem 1.5rem;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h2 {
    font-size: 1.5rem;
}

.header-buttons {
    display: flex;
    gap: 10px;
}

.theme-btn, .logout-btn {
    width: auto;
    padding: 8px 12px;
    font-size: 0.9rem;
    margin-top: 0;
}

/* === Content Area === */
.auth-content {
    padding: 2rem;
}

.welcome-container {
    padding: 2rem;
}

/* === Chat Message Box === */
.message-box {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
    background: #f9f9f9;
    border-radius: 5px;
    margin: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: background 0.3s ease;
}

.message {
    padding: 10px;
    border-radius: 8px;
    position: relative;
    max-width: 80%;
    word-wrap: break-word;
    transition: all 0.3s ease;
}

.message.own {
    align-self: flex-end;
    background: #e1ffc7;
    border-bottom-right-radius: 0;
}

.message.other {
    align-self: flex-start;
    background: #fff;
    border-bottom-left-radius: 0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.message-header {
    font-weight: bold;
    font-size: 0.9rem;
    margin-bottom: 5px;
    color: #ff6b95;
}

.message-text {
    margin-bottom: 5px;
}

.edited-badge {
    font-size: 0.7rem;
    color: #888;
    font-style: italic;
}

.message-actions {
    display: flex;
    gap: 5px;
    justify-content: flex-end;
    opacity: 0;
    transition: opacity 0.2s;
    margin-top: 5px;
}

.message:hover .message-actions {
    opacity: 1;
}

.message-action {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    font-size: 0.8rem;
    padding: 2px 5px;
    width: auto;
    transition: color 0.2s;
}

.message-action:hover {
    color: #ff6b95;
    background: none;
    transform: none;
}

.message-time {
    font-size: 0.7rem;
    color: #888;
    text-align: right;
}

/* === Inputs === */
input {
    width: 100%;
    padding: 12px;
    margin: 0.5rem 0;
    border: 1px solid #ddd;
    border-radius: 0.5rem;
    outline: none;
    font-size: 1rem;
    transition: border 0.3s, background 0.3s, color 0.3s;
}

input:focus {
    border-color: #ff6b95;
}

.message-inputs {
    display: flex;
    padding: 10px;
    gap: 10px;
}

.message-inputs input {
    margin: 0;
    flex: 1;
}

.message-inputs button {
    width: auto;
    margin: 0;
    padding: 12px 20px;
}

/* === Buttons === */
button {
    width: 100%;
    padding: 12px;
    margin-top: 1rem;
    border: none;
    border-radius: 0.5rem;
    background: linear-gradient(90deg, #ff6b95, #ff8e8e);
    color: #fff;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s, opacity 0.3s;
}

button:hover {
    transform: translateY(-2px);
    opacity: 0.9;
    box-shadow: 0 4px 12px rgba(255, 107, 149, 0.4);
}

/* === Google Button === */
button.google {
    background: linear-gradient(90deg, #ff8e8e, #ffb6b9);
}
button.google:hover {
    opacity: 0.9;
}

/* === Links === */
a {
    color: #ff6b95;
    text-decoration: none;
    font-weight: 500;
}
a:hover {
    text-decoration: underline;
}

/* === Loading Spinner === */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #ddd;
    border-top-color: #ff6b95;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading p {
    margin-top: 1rem;
    font-size: 1.1rem;
    color: #fff;
}

/* === Dark Theme === */
body.dark-theme {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: #f0f0f0;
}

body.dark-theme .auth-container,
body.dark-theme .welcome-container,
body.dark-theme .chat-container {
    background: #0f3460;
    color: #f0f0f0;
}

body.dark-theme .message-box {
    background: #16213e;
}

/* Updated Dark Theme Message Colors */
body.dark-theme .message.own {
    background: linear-gradient(135deg, #e94560, #ff6b95);
    color: white;
    box-shadow: 0 2px 8px rgba(233, 69, 96, 0.3);
}

body.dark-theme .message.other {
    background: #1a1a2e;
    color: #f0f0f0;
    border: 1px solid #533483;
    box-shadow: 0 2px 8px rgba(83, 52, 131, 0.2);
}

body.dark-theme .message-header {
    color: #ff8fb1;
}

body.dark-theme .message-time {
    color: #aaa;
}

body.dark-theme .edited-badge {
    color: #ccc;
}

body.dark-theme input {
    background: #16213e;
    border-color: #533483;
    color: #f0f0f0;
}

body.dark-theme input:focus {
    border-color: #ff6b95;
}

body.dark-theme .message-action {
    color: #aaa;
}

body.dark-theme .message-action:hover {
    color: #ff8fb1;
}

/* === Animations === */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes slide-up {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.7s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* === Responsive Design === */
@media (max-width: 480px) {
    .auth-container,
    .welcome-container,
    .chat-container {
        width: 95%;
    }

    .auth-header h2 {
        font-size: 1.5rem;
    }

    .chat-header {
        flex-direction: column;
        gap: 10px;
    }

    .header-buttons {
        width: 100%;
        justify-content: center;
    }

    .auth-content {
        padding: 1.5rem;
    }

    input,
    button {
        font-size: 0.9rem;
    }
}

.auth-container {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.auth-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 107, 149, 0.25);
    }