/* Global Styles - Monochrome Theme with Dark/Light Mode */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Mode (Default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e0e0e0;
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --border-color: #d0d0d0;
    --hover-bg: #ececec;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
    /* Dark Mode */
    --bg-primary: #1a1a1a;
    --bg-secondary: #121212;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --border-color: #333333;
    --hover-bg: #252525;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-strong: rgba(0, 0, 0, 0.5);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

/* On wide screens, align content to start so wide forms sit naturally from the top */
@media (min-width: 900px) {
    .container {
        align-items: flex-start;
        padding-top: 60px;
    }
}

/* Welcome Page */
.welcome-box {
    background: var(--bg-primary);
    padding: 60px 40px;
    border-radius: 8px;
    box-shadow: 0 2px 20px var(--shadow);
    text-align: center;
    max-width: 400px;
    width: 100%;
    animation: fadeIn 0.5s ease-in;
}

.welcome-box h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 300;
}

.welcome-box p {
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-size: 1rem;
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* Buttons */
.btn {
    padding: 14px 24px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.btn-primary:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

/* Form Styles */
.form-box {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 20px var(--shadow);
    max-width: 450px;
    width: 100%;
    animation: fadeIn 0.5s ease-in;
}

.form-box h2 {
    margin-bottom: 30px;
    font-weight: 300;
    font-size: 2rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--text-primary);
}

.form-link {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-link a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
}

.form-link a:hover {
    text-decoration: underline;
}

.error-message {
    background: #f0f0f0;
    color: var(--text-primary);
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    border-left: 3px solid var(--text-primary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--bg-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Header */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 300;
}

.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.header-actions a,
.header-actions button {
    color: var(--text-primary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background 0.3s ease, color 0.3s ease;
    background: transparent;
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 0.9rem;
}

.header-actions a:hover,
.header-actions button:hover {
    background: var(--hover-bg);
}

/* Theme Toggle Button */
#theme-toggle {
    font-size: 1.2rem;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
}

#theme-toggle:hover {
    background: var(--hover-bg);
    transform: scale(1.1);
}

/* Profile Dropdown */
.profile-dropdown {
    position: relative;
}

.profile-button {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.profile-button:hover {
    background: var(--hover-bg);
}

.profile-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.profile-avatar svg {
    width: 100%;
    height: 100%;
    display: block;
}

.profile-name {
    padding-right: 10px;
    font-size: 0.9rem;
    font-weight: 500;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-strong);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: background 0.2s ease;
    cursor: default;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item.clickable {
    cursor: pointer;
}

.dropdown-item.clickable:hover {
    background: var(--hover-bg);
}

.dropdown-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.dropdown-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* Floating Theme Toggle (for auth and landing pages) */
.theme-toggle-floating {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px var(--shadow);
    z-index: 1000;
}

.theme-toggle-floating:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px var(--shadow-strong);
}