:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-white: #f8fafc;
    --text-muted: #94a3b8;
    --input-focus: #818cf8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --accent: #f43f5e;
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

/* Background Animated Blobs */
.background-blob {
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0) 70%);
    border-radius: 50%;
    z-index: -1;
    filter: blur(40px);
    animation: blobify 20s infinite alternate;
}

.blob-1 {
    top: -100px;
    right: -100px;
}

.blob-2 {
    bottom: -100px;
    left: -100px;
    background: radial-gradient(circle, rgba(244, 63, 94, 0.1) 0%, rgba(244, 63, 94, 0) 70%);
    animation-delay: -5s;
}

@keyframes blobify {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
    100% { transform: translate(0, 0) scale(1); }
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    text-align: center;
    position: relative;
    z-index: 10;
}

.header {
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

.logo {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 0.5rem;
}

.logo span {
    color: var(--primary);
}

.tagline {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 1.1rem;
}

/* Card & Interactive Elements */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    text-align: left;
}

.label {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 0.25rem;
}

input {
    width: 100%;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
    color: var(--text-white);
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

input:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.btn {
    width: 100%;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #818cf8);
    color: white;
}

.btn-primary:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.4);
}

.btn-primary:not(:disabled):active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #475569;
}

.icon-plus {
    transition: transform 0.3s ease;
}

.btn:not(:disabled):hover .icon-plus {
    transform: rotate(90deg);
}

.footer {
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: fadeIn 1s ease-out 0.5s backwards;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Responsiveness */
@media (max-width: 640px) {
    .container {
        padding: 1.5rem;
    }
    .logo {
        font-size: 2.5rem;
    }
    .card {
        padding: 1.5rem;
    }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}