/* Dark theme with blues and purples */
:root {
    --bg-primary: #1a1a1f;
    --bg-secondary: #242429;
    --bg-tertiary: #2d2d35;
    --accent-blue: #4a7fff;
    --accent-purple: #8b5cf6;
    --accent-light-blue: #60a5fa;
    --accent-light-purple: #a78bfa;
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-muted: #9ca3af;
    --border-color: #3f3f46;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin: 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1f1a2e 100%);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    line-height: 1.6;
    font-size: 16px;
}

/* Layout */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: linear-gradient(90deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    padding: 12px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
}

.navbar-brand {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 20px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.navbar-brand:hover {
    color: var(--accent-light-blue);
}

/* Page header */
.page-header {
    border-bottom: 1px solid var(--border-color);
    margin: 30px 0 20px;
    padding-bottom: 10px;
}

.page-header h1 {
    margin: 0;
    font-weight: 300;
    letter-spacing: 0.5px;
    font-size: 28px;
}

/* Content section */
.content-section {
    padding-bottom: 40px;
}

/* Typography */
p {
    margin: 0 0 16px;
}

.lead {
    font-size: 18px;
    color: var(--text-secondary);
}

.error-text {
    color: #f87171;
    font-size: 18px;
}

/* Form controls */
.form-control {
    display: block;
    width: 100%;
    padding: 10px 12px;
    font-size: 16px;
    font-family: inherit;
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    outline: none;
    background-color: var(--bg-secondary);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 0.2rem rgba(74, 127, 255, 0.25);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.8;
}

textarea.form-control {
    resize: vertical;
}

input[readonly],
textarea[readonly] {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    cursor: text;
}

select.form-control {
    cursor: pointer;
    appearance: auto;
}

select.form-control option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.select-control {
    width: auto;
    min-width: 140px;
}

/* Form layout */
.form-row {
    margin-bottom: 16px;
}

.input-wrap {
    margin-bottom: 16px;
}

.controls-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    border: none;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 14px;
    padding: 10px 24px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.5;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-blue) 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, var(--accent-light-purple) 0%, var(--accent-light-blue) 100%);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-lg {
    font-size: 18px;
    padding: 14px 32px;
}

/* Links */
a {
    color: var(--accent-light-blue);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-light-purple);
    text-decoration: none;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-blue) 100%);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--accent-light-purple) 0%, var(--accent-light-blue) 100%);
}

.footer {
    text-align: center;
    padding: 16px 0;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 13px;
}

.footer a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer a:hover {
    color: var(--accent-light-blue);
}