:root {
    --lg-primary: #0f766e;
    --lg-primary-2: #0ea5e9;
    --lg-ink: #0b1324;
    --lg-muted: #64748b;
    --lg-surface: rgba(255, 255, 255, 0.9);
    --lg-border: rgba(148, 163, 184, 0.35);
}

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

body {
    font-family: "Sora", system-ui, sans-serif;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    color: var(--lg-ink);
    background:
        radial-gradient(circle at 12% 20%, rgba(15, 118, 110, 0.2), transparent 45%),
        radial-gradient(circle at 85% 18%, rgba(14, 165, 233, 0.18), transparent 40%),
        linear-gradient(130deg, #f8fafc 0%, #eff6ff 42%, #f0fdfa 100%);
    overflow-x: hidden;
}

.login-container {
    width: 100%;
    max-width: 460px;
}

.login-card {
    background: var(--lg-surface);
    border: 1px solid var(--lg-border);
    border-radius: 22px;
    padding: 38px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
    backdrop-filter: blur(8px);
    position: relative;
    overflow: hidden;
    animation: loginCardEnter 360ms ease-out;
}

.login-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--lg-primary), var(--lg-primary-2));
}

.logo {
    text-align: center;
    margin-bottom: 28px;
}

.logo i {
    font-size: 34px;
    margin-bottom: 12px;
    color: var(--lg-primary);
}

.logo h1 {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo p {
    margin-top: 8px;
    color: var(--lg-muted);
    font-size: 0.92rem;
}

.form-group {
    position: relative;
    margin-bottom: 18px;
}

.form-group i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    transition: color 0.2s;
}

.form-input {
    width: 100%;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    padding: 13px 14px 13px 42px;
    font-size: 0.96rem;
    background: #fff;
    color: var(--lg-ink);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--lg-primary);
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.14);
}

.form-input:focus-visible,
.toggle-password:focus-visible,
.btn-login:focus-visible {
    outline: 3px solid rgba(2, 132, 199, 0.35);
    outline-offset: 2px;
}

.form-group:focus-within i {
    color: var(--lg-primary);
}

.btn-login {
    width: 100%;
    margin-top: 6px;
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 0.98rem;
    font-weight: 700;
    color: #fff;
    cursor: pointer;
    background: linear-gradient(135deg, var(--lg-primary), var(--lg-primary-2));
    transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-login:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(15, 118, 110, 0.25);
    filter: brightness(1.02);
}

.btn-login:disabled,
.btn-login.is-loading {
    cursor: wait;
    opacity: 0.86;
    transform: none;
    filter: grayscale(0.05);
}

.error-message {
    border-radius: 10px;
    border: 1px solid #fecaca;
    background: #fef2f2;
    color: #b91c1c;
    padding: 12px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
    animation: fadeSlideIn 260ms ease-out;
}

.footer-links {
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid #e2e8f0;
    text-align: center;
    color: var(--lg-muted);
    font-size: 0.84rem;
}

.password-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: #94a3b8;
    cursor: pointer;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@keyframes loginCardEnter {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.985);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 30px 22px;
        border-radius: 18px;
    }

    .logo h1 {
        font-size: 1.25rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}