:root {
    --bg-dark: #08110c;
    --bg-layer: #102218;
    --card-bg: rgba(14, 32, 23, 0.78);
    --border-color: rgba(147, 214, 174, 0.18);
    --text-primary: #f1f7f1;
    --text-secondary: #a4c1ab;
    --primary-color: #8ad6a8;
    --primary-hover: #6ac18a;
    --gradient-start: #8ad6a8;
    --gradient-end: #24543f;
    --error-color: #ef4444;
    --success-color: #7fddb0;
}

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

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(127, 221, 176, 0.16), transparent 32%),
        radial-gradient(circle at bottom right, rgba(36, 84, 63, 0.38), transparent 34%),
        linear-gradient(145deg, var(--bg-dark), var(--bg-layer));
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.22;
    animation: drift 20s infinite alternate ease-in-out;
}

.grain {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.045) 0.7px, transparent 0.7px);
    background-size: 18px 18px;
    opacity: 0.12;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--gradient-start);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-end);
    bottom: -150px;
    right: -100px;
    animation-delay: -10s;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.header {
    text-align: center;
    margin-bottom: 2.5rem;
    animation: fadeUp 0.6s ease-out;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.logo-wrapper h1 {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.025em;
}

.header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.5;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8);
    animation: fadeUp 0.8s ease-out;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.025em;
}

.input-wrapper {
    position: relative;
}

input[type="url"] {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(8, 17, 12, 0.82);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    outline: none;
}

input[type="url"]::placeholder {
    color: rgba(164, 193, 171, 0.45);
}

input[type="url"]:focus {
    border-color: var(--primary-color);
    background: rgba(8, 17, 12, 0.95);
}

.focus-ring {
    position: absolute;
    inset: -2px;
    border-radius: 0.875rem;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    pointer-events: none;
}

input[type="url"]:focus + .focus-ring {
    border-color: rgba(138, 214, 168, 0.3);
}

.toggle-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 0.85rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.95rem;
    background: rgba(8, 17, 12, 0.56);
    cursor: pointer;
}

.toggle-row strong {
    display: block;
    font-size: 0.98rem;
}

.toggle-row small {
    display: block;
    margin-top: 0.2rem;
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.toggle-row input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.toggle-switch {
    width: 3.4rem;
    height: 2rem;
    border-radius: 999px;
    background: rgba(164, 193, 171, 0.25);
    position: relative;
    transition: background 0.25s ease;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 0.2rem;
    left: 0.2rem;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    background: #f1f7f1;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.25);
    transition: transform 0.25s ease;
}

.toggle-row input:checked + .toggle-switch {
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
}

.toggle-row input:checked + .toggle-switch::after {
    transform: translateX(1.4rem);
}

.btn-primary {
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    color: white;
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(255,255,255,0.1), rgba(255,255,255,0));
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.btn-primary:hover::before {
    transform: translateX(100%);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 30px -18px rgba(138, 214, 168, 0.75);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    background: linear-gradient(to right, #3a4f43, #567264);
    box-shadow: none;
}

/* Spinner */
.spinner {
    width: 1.25rem;
    height: 1.25rem;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    display: inline-block;
}

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

.hidden {
    display: none !important;
}

/* Messages */
.message-area {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 0.75rem;
    animation: fadeUp 0.3s ease-out;
    text-align: center;
    font-size: 0.95rem;
}

.message-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.message-success {
    background: rgba(127, 221, 176, 0.1);
    border: 1px solid rgba(127, 221, 176, 0.2);
    color: #b0f0cb;
}

.footer {
    text-align: center;
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    animation: fadeUp 1s ease-out;
    opacity: 0.7;
}

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

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 1.5rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .logo-wrapper h1 {
        font-size: 1.5rem;
    }

    .toggle-row {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "text toggle"
            "text toggle";
    }
}