/* Common styles shared across all pages */

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

:root {
    --primary: #4a9eff;
    --primary-variant: #1e3a8a;
    --secondary: #03dac6;
    --background: #121212;
    --surface: #1e1e1e;
    --surface-variant: #2c2c2c;
    --error: #cf6679;
    --success: #4caf50;
    --on-primary: #000000;
    --on-secondary: #000000;
    --on-background: #e1e1e1;
    --on-surface: #e1e1e1;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background);
    color: var(--on-background);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background-color: var(--surface);
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--primary);
    text-decoration: none;
}

.logo .material-icons {
    font-size: 2rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--on-surface);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 400;
}

nav a:hover {
    color: var(--primary);
}

/* Main Content */
main {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: 'Roboto', sans-serif;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: #6bb3ff;
    box-shadow: 0 4px 8px rgba(74, 158, 255, 0.3);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background-color: rgba(74, 158, 255, 0.1);
}

/* Footer */
footer {
    background-color: var(--surface);
    padding: 2rem;
    text-align: center;
    margin-top: 4rem;
    color: rgba(225, 225, 225, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    nav ul {
        gap: 1rem;
    }
}