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

:root {
    --primary-color: #6200ea;
    --primary-light: #9d46ff;
    --primary-dark: #0a00b6;
    --secondary-color: #03dac6;
    --text-color: #333333;
    --background-color: #f5f7fa;
    --card-color: #ffffff;
    --accent-color: #ff4081;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    --border-radius: 10px;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    background-image: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(98, 0, 234, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

.logo i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-right: 15px;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.8;
}

.toolbar {
    background-color: var(--card-color);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 20px;
}

.tool-section {
    flex: 1;
    min-width: 250px;
    padding: 15px;
    background-color: rgba(98, 0, 234, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.tool {
    margin: 15px 0;
    display: flex;
    align-items: center;
}

.tool label {
    margin-right: 15px;
    font-weight: 600;
    color: var(--primary-dark);
    min-width: 60px;
}

.tool input[type="range"] {
    width: 150px;
    height: 8px;
    -webkit-appearance: none;
    background: linear-gradient(to right, var(--primary-light), var(--primary-dark));
    border-radius: 5px;
    outline: none;
}

.tool input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}

.tool input[type="color"] {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background-color: transparent;
}

.tool input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.tool input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}

#size-display {
    margin-left: 15px;
    min-width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: bold;
}

.tool-buttons {
    display: flex;
    gap: 15px;
    margin: 15px 0;
    justify-content: center;
}

button {
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

button i {
    font-size: 1.2rem;
}

button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

button.active {
    background-color: var(--accent-color);
}

#eraser {
    background-color: var(--secondary-color);
}

#eraser:hover {
    background-color: #00b5a7;
}

#clear {
    background-color: #ff6b6b;
}

#clear:hover {
    background-color: #ff5252;
}

#save {
    background-color: #43a047;
}

#save:hover {
    background-color: #388e3c;
}

.color-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.color-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}

.color-btn:hover {
    transform: scale(1.1);
}

.color-btn.active {
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.canvas-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
    flex-grow: 1;
    overflow: hidden;
    padding: 10px;
}

#drawing-canvas {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    cursor: crosshair;
    max-width: 100%;
    touch-action: none; /* Prevents default touch actions like scrolling */
}

footer {
    margin-top: auto;
    padding: 20px 0;
    border-top: 2px solid rgba(98, 0, 234, 0.1);
    color: var(--text-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.profile {
    display: flex;
    align-items: center;
    gap: 15px;
    background-color: var(--card-color);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    max-width: 400px;
}

.profile-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.profile-info {
    text-align: left;
}

.profile-info h3 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.profile-info p {
    margin: 5px 0 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

.copyright {
    text-align: center;
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 15px;
    }
}

@media (max-width: 992px) {
    .toolbar {
        flex-direction: column;
    }

    .tool-section {
        width: 100%;
        min-width: 100%;
        margin-bottom: 15px;
    }

    .profile {
        max-width: 100%;
    }

    #drawing-canvas {
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    .logo i {
        font-size: 1.8rem;
    }

    .tagline {
        font-size: 0.9rem;
    }

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

    .tool input[type="range"] {
        width: 120px;
    }

    .tool-section {
        padding: 10px;
    }

    .color-palette {
        gap: 8px;
    }

    .color-btn {
        width: 35px;
        height: 35px;
    }

    .profile {
        flex-direction: column;
        text-align: center;
        padding: 15px;
    }

    .profile-info {
        text-align: center;
    }

    .canvas-container {
        padding: 0;
    }

    button {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .logo i {
        font-size: 1.5rem;
        margin-right: 10px;
    }

    h3 {
        font-size: 1rem;
    }

    .toolbar {
        padding: 15px 10px;
        gap: 10px;
        margin-bottom: 15px;
    }

    .tool label {
        min-width: 50px;
        font-size: 0.9rem;
    }

    #size-display {
        min-width: 25px;
        height: 25px;
        font-size: 0.9rem;
    }

    button {
        padding: 8px;
    }

    button i {
        font-size: 1rem;
    }

    .profile-img {
        width: 50px;
        height: 50px;
    }

    .profile-info h3 {
        font-size: 1rem;
    }

    .profile-info p {
        font-size: 0.8rem;
    }

    .copyright {
        font-size: 0.8rem;
    }
}

/* Orientation specific styles */
@media (max-height: 600px) and (orientation: landscape) {
    .container {
        padding: 5px;
    }

    header {
        margin-bottom: 10px;
        padding-bottom: 10px;
    }

    .toolbar {
        padding: 10px;
        margin-bottom: 10px;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .tool-section {
        min-width: 200px;
        padding: 8px;
        margin-bottom: 0;
    }

    .canvas-container {
        margin-bottom: 10px;
    }

    footer {
        padding: 10px 0;
    }

    .profile-img {
        width: 40px;
        height: 40px;
    }
}