/* Dark Pro Theme - Tailwind-like custom CSS */
:root {
    --bg-dark: #0A0A0F;
    --bg-card: #15151A;
    --primary: #7C6BFF;
    --primary-dark: #5A48DF;
    --primary-light: #9E91FF;
    --text-main: #FFFFFF;
    --text-muted: #9CA3AF;
    --danger: #EF4444;
    --success: #10B981;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
}

/* Utilities */
.min-h-screen { min-height: 100vh; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.max-w-4xl { max-width: 56rem; }
.max-w-md { max-width: 28rem; }
.w-full { width: 100%; }
.bg-card { background-color: var(--bg-card); }
.rounded-2xl { border-radius: 1rem; }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.z-10 { z-index: 10; }
.p-8 { padding: 2rem; }
.p-12 { padding: 3rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-4 { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.text-center { text-align: center; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-lg { font-size: 1.125rem; }
.text-sm { font-size: 0.875rem; }
.font-bold { font-weight: 700; }
.text-gray-300 { color: #D1D5DB; }
.text-gray-400 { color: var(--text-muted); }
.text-primary { color: var(--primary); }
.bg-gradient-to-br { background: linear-gradient(to bottom right, var(--primary-dark), var(--primary)); }
.text-white { color: white; }
.opacity-90 { opacity: 0.9; }
.opacity-10 { opacity: 0.1; }
.blur-xl { filter: blur(24px); }
.rounded-full { border-radius: 9999px; }
.transition { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 300ms; }
.cursor-pointer { cursor: pointer; }
.gap-2 { gap: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:flex { display: flex; }
    .hidden.md\:flex { display: flex; }
    .md\:p-12 { padding: 3rem; }
}
.hidden { display: none; }

/* Forms */
.form-group { position: relative; }
.form-input {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 1.25rem 1rem 0.5rem 1rem;
    border-radius: 0.5rem;
    outline: none;
    transition: all 0.2s;
    box-sizing: border-box;
}
.form-input:focus {
    border-color: var(--primary);
    background-color: rgba(255, 255, 255, 0.08);
}
.form-label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    transition: all 0.2s;
    pointer-events: none;
    font-size: 1rem;
}
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: 0.75rem;
    font-size: 0.75rem;
    color: var(--primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    outline: none;
}
.btn-primary {
    background-color: var(--primary);
    color: white;
}
.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-1px);
}

a { text-decoration: none; }
a:hover { color: var(--text-main); }

.alert {
    padding: 1rem;
    border-radius: 0.5rem;
}
.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: #FCA5A5;
}